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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "be5ab2df",
+   "metadata": {},
+   "source": [
+    "# Środowiska wirtualne"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "cf14c577",
+   "metadata": {},
+   "source": [
+    "## Python Virtual Env\n",
+    " - Python posiada wbudowany mechanizm do zarządzania wirtualnymi środowiskami\n",
+    " - Nie mylić z bardziej rozbudowanym [virtualenv](https://pypi.org/project/virtualenv/) (dla Python 2)\n",
+    " - Umożliwia używanie różnych wersji bibliotek do różnych zastosowań\n",
+    " - Dotyczy on tylko bibliotek pythona\n",
+    " - Więcej informacji: https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "182bbf83",
+   "metadata": {},
+   "source": [
+    "Poniżej stworzymy środowisko w katalogu `./myenv`:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "69d39a9e",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "$ python3 -m venv myenv\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "47a4bf00",
+   "metadata": {},
+   "source": [
+    "Teraz możemy je aktywować:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "cf54cb09",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "$ source ./myenv/bin/activate\n",
+    "(myenv) $ which python\n",
+    "/home/tomek/myenv/bin/python\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "bdafb824",
+   "metadata": {},
+   "source": [
+    "I modyfikować instalując zależności:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "399a8b45",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "(myenv) $ python3 -m pip install requests\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "efde93a2",
+   "metadata": {},
+   "source": [
+    "Środowisko możemy deaktywować poprzez:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "838c5ebd",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "deactivate\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "0557e0c8",
+   "metadata": {},
+   "source": [
+    "Środowisko można udostępnić kopiując cały katalog ze środowiskiem"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "26f253cb",
+   "metadata": {},
+   "source": [
+    "## Conda\n",
+    "> *Package, dependency and environment management for any language—Python, R, Ruby, Lua, Scala, Java, JavaScript, C/ C++, FORTRAN, and more.*\n",
+    "\n",
+    "<img src=\"img/environments/conda.png\"/>\n",
+    "\n",
+    "Conda umożliwia zarządzanie:\n",
+    " - środowiskami (jak venv)\n",
+    " - paczkami i zależnościami (jak pip)\n",
+    "\n",
+    "Dokumentacja: https://docs.conda.io/en/latest/\n",
+    "\n",
+    "Różnice między Conda a venv [źródło](https://docs.conda.io/projects/conda/en/latest/user-guide/concepts/environments.html#virtual-environments):\n",
+    " - Dowolna wersja Python w Conda (inna niż systemowa)\n",
+    " - Conda zarządza też zależnościami innymi niż Pythonowe\n",
+    " - Paczki w PyPI (używane przez P"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "57f19a08",
+   "metadata": {},
+   "source": [
+    "## Dystrybucje: Anaconda i Conda\n",
+    "Conda jest dostępna w dwóch dystrybcjach:\n",
+    " - [Miniconda](https://docs.conda.io/en/latest/miniconda.html):\n",
+    "    - wymaga 400 MB miejsca na dysku\n",
+    "    - zawiera jedynie podstawowe narzędzia:\n",
+    "      - conda\n",
+    "      - Python\n",
+    "      - pip, zlib\n",
+    "    - pozostałe narzędzia/biblioteki doinstalujemy w miarę potrzeb\n",
+    " - [Anaconda](https://www.anaconda.com/products/individual)\n",
+    "     - wymaga conajmniej 3 GB miejsca na dysku\n",
+    "     - Zawiera narzędzi GUI [Anaconda Navigator](https://docs.anaconda.com/anaconda/navigator/) (można je doinstalować do Miniconda)\n",
+    "     - zawiera to co Miniconda +:\n",
+    "       - Ponad 1500 preinstalowanych pakietów, głównie \"naukowych\", m.in.: SciPy, NumPy, Jupyter, scikit-learn, Pandas\n",
+    "       "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "b199274c",
+   "metadata": {},
+   "source": [
+    "## Dystrybucje\n",
+    " - Wersje paczek/bibliotek zawartych w danej dystrybucji są przetestowane pod względem zgodności ze sobą\n",
+    " - Możemy dokonać zaktualizacji wszystkich pakietów za pomocą polecenia: `conda update conda`\n",
+    " - Conda zatroszczy się o to, by rozwiązać potencjalne konflikty wynikające z zależności deklarowanych przez poszczególne biblioteki. \n",
+    " - Nie zawsze wszystkie biblioteki będą w swoich najnowszych wersjach - mogłoby to powodować problemy z działaniem bibliotek od nich zależnych\n",
+    " - Podczas aktualizacji niektóre biblioteki mogą zostać \"zdowngradowane\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "b1d8c391",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "$ conda update conda\n",
+    "Collecting package metadata (current_repodata.json): done\n",
+    "Solving environment: done\n",
+    "\n",
+    "## Package Plan ##\n",
+    "\n",
+    "  environment location: /home/tomek/miniconda3\n",
+    "\n",
+    "  added / updated specs:\n",
+    "    - conda\n",
+    "\n",
+    "\n",
+    "The following packages will be downloaded:\n",
+    "\n",
+    "    package                    |            build\n",
+    "    ---------------------------|-----------------\n",
+    "    attrs-21.2.0               |     pyhd3eb1b0_0          46 KB\n",
+    "    cffi-1.14.5                |   py39h261ae71_0         226 KB\n",
+    "    chardet-4.0.0              |py39h06a4308_1003         194 KB\n",
+    "    conda-package-handling-1.7.3|   py39h27cfd23_1         884 KB\n",
+    "    cryptography-3.4.7         |   py39hd23ed53_0         906 KB\n",
+    "    decorator-5.0.9            |     pyhd3eb1b0_0          12 KB\n",
+    "    glib-2.68.2                |       h36276a3_0         3.0 MB\n",
+    "    idna-2.10                  |     pyhd3eb1b0_0          52 KB\n",
+    "    jinja2-3.0.0               |     pyhd3eb1b0_0         106 KB\n",
+    "    markupsafe-2.0.1           |   py39h27cfd23_0          22 KB\n",
+    "    notebook-6.4.0             |   py39h06a4308_0         4.1 MB\n",
+    "    pygments-2.9.0             |     pyhd3eb1b0_0         721 KB\n",
+    "    pyopenssl-20.0.1           |     pyhd3eb1b0_1          49 KB\n",
+    "    requests-2.25.1            |     pyhd3eb1b0_0          52 KB\n",
+    "    ruamel_yaml-0.15.100       |   py39h27cfd23_0         260 KB\n",
+    "    tqdm-4.59.0                |     pyhd3eb1b0_1          93 KB\n",
+    "    urllib3-1.26.4             |     pyhd3eb1b0_0         105 KB\n",
+    "    ------------------------------------------------------------\n",
+    "                                           Total:        10.7 MB\n",
+    "\n",
+    "The following packages will be REMOVED:\n",
+    "\n",
+    "  libedit-3.1.20191231-h14c3975_1\n",
+    "  pip-20.3.1-py39h06a4308_0\n",
+    "  wheel-0.36.1-pyhd3eb1b0_0\n",
+    "\n",
+    "The following packages will be UPDATED:\n",
+    "\n",
+    "  attrs                                 20.3.0-pyhd3eb1b0_0 --> 21.2.0-pyhd3eb1b0_0\n",
+    "  ca-certificates    conda-forge::ca-certificates-2020.12.~ --> pkgs/main::ca-certificates-2021.4.13-h06a4308_1\n",
+    "  cffi                                1.14.4-py39h261ae71_0 --> 1.14.5-py39h261ae71_0\n",
+    "  chardet                           3.0.4-py39h06a4308_1003 --> 4.0.0-py39h06a4308_1003\n",
+    "  conda              conda-forge::conda-4.10.1-py39hf3d152~ --> pkgs/main::conda-4.10.1-py39h06a4308_1\n",
+    "  conda-package-han~                   1.7.2-py39h27cfd23_1 --> 1.7.3-py39h27cfd23_1\n",
+    "  cryptography                         3.3.1-py39h3c74f83_0 --> 3.4.7-py39hd23ed53_0\n",
+    "  decorator                              5.0.6-pyhd3eb1b0_0 --> 5.0.9-pyhd3eb1b0_0\n",
+    "  glib                                    2.68.1-h36276a3_0 --> 2.68.2-h36276a3_0\n",
+    "  jinja2                                2.11.3-pyhd3eb1b0_0 --> 3.0.0-pyhd3eb1b0_0\n",
+    "  markupsafe                           1.1.1-py39h27cfd23_0 --> 2.0.1-py39h27cfd23_0\n",
+    "  notebook                             6.3.0-py39h06a4308_0 --> 6.4.0-py39h06a4308_0\n",
+    "  pygments                               2.8.1-pyhd3eb1b0_0 --> 2.9.0-pyhd3eb1b0_0\n",
+    "  pyopenssl                             20.0.0-pyhd3eb1b0_1 --> 20.0.1-pyhd3eb1b0_1\n",
+    "  readline                                   8.0-h7b6447c_0 --> 8.1-h27cfd23_0\n",
+    "  requests                              2.25.0-pyhd3eb1b0_0 --> 2.25.1-pyhd3eb1b0_0\n",
+    "  ruamel_yaml                        0.15.80-py39h27cfd23_0 --> 0.15.100-py39h27cfd23_0\n",
+    "  setuptools                          51.0.0-py39h06a4308_2 --> 52.0.0-py39h06a4308_0\n",
+    "  sqlite                                  3.33.0-h62c20be_0 --> 3.35.4-hdfb4753_0\n",
+    "  tqdm                                  4.54.1-pyhd3eb1b0_0 --> 4.59.0-pyhd3eb1b0_1\n",
+    "  tzdata                                   2020d-h14c3975_0 --> 2020f-h52ac0ba_0\n",
+    "  urllib3                                      1.25.11-py_0 --> 1.26.4-pyhd3eb1b0_0\n",
+    "\n",
+    "The following packages will be SUPERSEDED by a higher-priority channel:\n",
+    "\n",
+    "  certifi            conda-forge::certifi-2020.12.5-py39hf~ --> pkgs/main::certifi-2020.12.5-py39h06a4308_0\n",
+    "\n",
+    "The following packages will be DOWNGRADED:\n",
+    "\n",
+    "  idna                                            2.10-py_0 --> 2.10-pyhd3eb1b0_0\n",
+    "\n",
+    "\n",
+    "Proceed ([y]/n)? y\n",
+    "\n",
+    "[...]\n",
+    "\n",
+    "\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1c7b2930",
+   "metadata": {},
+   "source": [
+    "## Instalacja\n",
+    "Instrukcje: \n",
+    "- [Linux](https://docs.conda.io/projects/conda/en/latest/user-guide/install/linux.html)\n",
+    "- [Windows](https://docs.conda.io/projects/conda/en/latest/user-guide/install/windows.html)\n",
+    "- [macOS](https://docs.conda.io/projects/conda/en/latest/user-guide/install/macos.html)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3edc108c",
+   "metadata": {},
+   "source": [
+    "## Pakiety Conda\n",
+    "Pakiet (Package) conda to archiwum o rozszerzeniu `.tar.bz2` lub `.conda`zawierające:\n",
+    " - folder `lib`: biblioteki systemowe, moduły Python\n",
+    " - folder `bin`: pliki wykonywalne i wszelkie inne pliki potrzebne to zainstalowania danej zależności\n",
+    " - metadane w katalogu `info/`\n",
+    " \n",
+    " \n",
+    " \n",
+    "Pakiety można:\n",
+    " - wyszukiwać: `conda search pytorch`\n",
+    " - instalować: `conda install pytorch`\n",
+    " - tworzyć: `conda build hello_world`\n",
+    " - usuwać: `conda remove pytorch`\n",
+    " "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3094ba52",
+   "metadata": {},
+   "source": [
+    "### Repozytoria i kanały\n",
+    "- Pakiety mogą być ściągane z różnych kanałów (\"channels\")\n",
+    "- Kanały mogą być zdalne albo lokalne\n",
+    "- Domyślny kanał to https://repo.anaconda.com/pkgs/ - zawiera ponad 7,5 tys pakietów, jest utrzymywany przez Anacondę.\n",
+    "- Jeśli jakiejś paczki nie ma na oficjalnym kanale, bardzo możliwe, że znajdziemy ją na [Conda-forge](https://conda-forge.org/) - kanale utrzymywanym przez społeczność\n",
+    "- Wyszukiwanie i przeglądanie pakietów: [conda i conda-forge](https://anaconda.org/anaconda/repo)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8c045d64",
+   "metadata": {},
+   "source": [
+    "Na przykład, pakiet `mlflow` nie jest dostępny na oficjalnym kanale:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "id": "9d72552f",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Loading channels: done\n",
+      "No match found for: mlflow. Search: *mlflow*\n",
+      "\n",
+      "PackagesNotFoundError: The following packages are not available from current channels:\n",
+      "\n",
+      "  - mlflow\n",
+      "\n",
+      "Current channels:\n",
+      "\n",
+      "  - https://repo.anaconda.com/pkgs/main/linux-64\n",
+      "  - https://repo.anaconda.com/pkgs/main/noarch\n",
+      "  - https://repo.anaconda.com/pkgs/r/linux-64\n",
+      "  - https://repo.anaconda.com/pkgs/r/noarch\n",
+      "\n",
+      "To search for alternate channels that may provide the conda package you're\n",
+      "looking for, navigate to\n",
+      "\n",
+      "    https://anaconda.org\n",
+      "\n",
+      "and use the search bar at the top of the page.\n",
+      "\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda search mlflow"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "123b3e4e",
+   "metadata": {},
+   "source": [
+    "Do poleceń `search` i `install` możemy dodać flagę `channel` co doda podany kanał do listy przeszukiwanych przez to polecenie kanałów:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "id": "d55a2d84",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Loading channels: done\n",
+      "# Name                       Version           Build  Channel             \n",
+      "mlflow                       0.9.0.1            py_0  conda-forge         \n",
+      "mlflow                         0.9.1            py_0  conda-forge         \n",
+      "mlflow                         1.0.0          py27_0  conda-forge         \n",
+      "mlflow                         1.0.0          py27_1  conda-forge         \n",
+      "mlflow                         1.0.0            py_2  conda-forge         \n",
+      "mlflow                         1.0.0            py_3  conda-forge         \n",
+      "mlflow                         1.1.0            py_0  conda-forge         \n",
+      "mlflow                         1.2.0            py_0  conda-forge         \n",
+      "mlflow                         1.2.0            py_1  conda-forge         \n",
+      "mlflow                         1.3.0          py36_0  conda-forge         \n",
+      "mlflow                         1.3.0          py37_0  conda-forge         \n",
+      "mlflow                         1.4.0          py36_0  conda-forge         \n",
+      "mlflow                         1.4.0          py37_0  conda-forge         \n",
+      "mlflow                         1.4.0          py38_0  conda-forge         \n",
+      "mlflow                         1.5.0          py36_0  conda-forge         \n",
+      "mlflow                         1.5.0          py36_1  conda-forge         \n",
+      "mlflow                         1.5.0          py37_0  conda-forge         \n",
+      "mlflow                         1.5.0          py37_1  conda-forge         \n",
+      "mlflow                         1.5.0          py38_0  conda-forge         \n",
+      "mlflow                         1.5.0          py38_1  conda-forge         \n",
+      "mlflow                         1.6.0          py36_0  conda-forge         \n",
+      "mlflow                         1.6.0          py37_0  conda-forge         \n",
+      "mlflow                         1.6.0          py38_0  conda-forge         \n",
+      "mlflow                         1.7.0          py36_0  conda-forge         \n",
+      "mlflow                         1.7.0          py37_0  conda-forge         \n",
+      "mlflow                         1.7.0          py38_0  conda-forge         \n",
+      "mlflow                         1.7.1  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.7.1  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.7.1  py38h32f6830_0  conda-forge         \n",
+      "mlflow                         1.7.2  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.7.2  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.7.2  py38h32f6830_0  conda-forge         \n",
+      "mlflow                         1.8.0  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.8.0  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.8.0  py38h32f6830_0  conda-forge         \n",
+      "mlflow                         1.9.1  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.9.1  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.9.1  py38h32f6830_0  conda-forge         \n",
+      "mlflow                        1.10.0  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                        1.10.0  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                        1.10.0  py38h32f6830_0  conda-forge         \n",
+      "mlflow                        1.11.0  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                        1.11.0  py36h9f0ad1d_1  conda-forge         \n",
+      "mlflow                        1.11.0  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                        1.11.0  py37hc8dfbb8_1  conda-forge         \n",
+      "mlflow                        1.11.0  py38h32f6830_0  conda-forge         \n",
+      "mlflow                        1.11.0  py38h32f6830_1  conda-forge         \n",
+      "mlflow                        1.12.0  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.12.0  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.12.0  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.12.1  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.12.1  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.12.1  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                          1.13  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                          1.13  py37h89c1867_0  conda-forge         \n",
+      "mlflow                          1.13  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.13.1  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.13.1  py36h5fab9bb_2  conda-forge         \n",
+      "mlflow                        1.13.1  py36hd000896_2  conda-forge         \n",
+      "mlflow                        1.13.1  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.13.1  py37h89c1867_2  conda-forge         \n",
+      "mlflow                        1.13.1  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.13.1  py38h578d9bd_2  conda-forge         \n",
+      "mlflow                        1.13.1  py39hf3d152e_2  conda-forge         \n",
+      "mlflow                        1.14.0  py36h24e63a9_1  conda-forge         \n",
+      "mlflow                        1.14.0  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.14.0  py36h87b8279_1  conda-forge         \n",
+      "mlflow                        1.14.0  py36hd000896_0  conda-forge         \n",
+      "mlflow                        1.14.0  py37h02d9ccd_1  conda-forge         \n",
+      "mlflow                        1.14.0  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.14.0  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.14.0  py38he918c71_1  conda-forge         \n",
+      "mlflow                        1.14.0  py39ha39b057_1  conda-forge         \n",
+      "mlflow                        1.14.0  py39hf3d152e_0  conda-forge         \n",
+      "mlflow                        1.14.1  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.14.1  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.14.1  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.14.1  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.14.1  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.15.0  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.15.0  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.15.0  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.15.0  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.15.0  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.16.0  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.16.0  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.16.0  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.16.0  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.16.0  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.17.0  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.17.0  py36h24e63a9_1  conda-forge         \n",
+      "mlflow                        1.17.0  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.17.0  py36h87b8279_1  conda-forge         \n",
+      "mlflow                        1.17.0  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.17.0  py37h02d9ccd_1  conda-forge         \n",
+      "mlflow                        1.17.0  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.17.0  py38he918c71_1  conda-forge         \n",
+      "mlflow                        1.17.0  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.17.0  py39ha39b057_1  conda-forge         \n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda search mlflow --channel conda-forge"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a4994ed6",
+   "metadata": {},
+   "source": [
+    "Możemy dodać kanał `conda-forge` tak, żeby był używany automatycznie (bez podawania flagi `channel`):"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "id": "0f93ee82",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Warning: 'conda-forge' already in 'channels' list, moving to the top\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda config --add channels conda-forge"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "85d7014f",
+   "metadata": {},
+   "source": [
+    "Polecanie `conda info` pokaże nam m.in. używane domyślnie kanały.\n",
+    "Możem dodawać i usuwać kanały oraz zmieniać ich kolejność (priorytet) edytując plik [`~/.condarc`](https://conda.io/projects/conda/en/latest/user-guide/configuration/use-condarc.html)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "id": "e57a28b9",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "     active environment : base\n",
+      "    active env location : /home/tomek/miniconda3\n",
+      "            shell level : 1\n",
+      "       user config file : /home/tomek/.condarc\n",
+      " populated config files : /home/tomek/.condarc\n",
+      "          conda version : 4.10.1\n",
+      "    conda-build version : not installed\n",
+      "         python version : 3.9.1.final.0\n",
+      "       virtual packages : __cuda=11.2=0\n",
+      "                          __linux=5.4.0=0\n",
+      "                          __glibc=2.31=0\n",
+      "                          __unix=0=0\n",
+      "                          __archspec=1=x86_64\n",
+      "       base environment : /home/tomek/miniconda3  (writable)\n",
+      "      conda av data dir : /home/tomek/miniconda3/etc/conda\n",
+      "  conda av metadata url : https://repo.anaconda.com/pkgs/main\n",
+      "           channel URLs : https://conda.anaconda.org/conda-forge/linux-64\n",
+      "                          https://conda.anaconda.org/conda-forge/noarch\n",
+      "                          https://repo.anaconda.com/pkgs/main/linux-64\n",
+      "                          https://repo.anaconda.com/pkgs/main/noarch\n",
+      "                          https://repo.anaconda.com/pkgs/r/linux-64\n",
+      "                          https://repo.anaconda.com/pkgs/r/noarch\n",
+      "          package cache : /home/tomek/miniconda3/pkgs\n",
+      "                          /home/tomek/.conda/pkgs\n",
+      "       envs directories : /home/tomek/miniconda3/envs\n",
+      "                          /home/tomek/.conda/envs\n",
+      "               platform : linux-64\n",
+      "             user-agent : conda/4.10.1 requests/2.25.1 CPython/3.9.1 Linux/5.4.0-73-generic ubuntu/20.04.2 glibc/2.31\n",
+      "                UID:GID : 1000:1000\n",
+      "             netrc file : None\n",
+      "           offline mode : False\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda info"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9e67e25c",
+   "metadata": {},
+   "source": [
+    "Jak widać, po dodaniu kanału `conda-forge`, pakiet `mlflow` zostaje znaleziony:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "56e51ade",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Loading channels: done\n",
+      "# Name                       Version           Build  Channel             \n",
+      "mlflow                       0.9.0.1            py_0  conda-forge         \n",
+      "mlflow                         0.9.1            py_0  conda-forge         \n",
+      "mlflow                         1.0.0          py27_0  conda-forge         \n",
+      "mlflow                         1.0.0          py27_1  conda-forge         \n",
+      "mlflow                         1.0.0            py_2  conda-forge         \n",
+      "mlflow                         1.0.0            py_3  conda-forge         \n",
+      "mlflow                         1.1.0            py_0  conda-forge         \n",
+      "mlflow                         1.2.0            py_0  conda-forge         \n",
+      "mlflow                         1.2.0            py_1  conda-forge         \n",
+      "mlflow                         1.3.0          py36_0  conda-forge         \n",
+      "mlflow                         1.3.0          py37_0  conda-forge         \n",
+      "mlflow                         1.4.0          py36_0  conda-forge         \n",
+      "mlflow                         1.4.0          py37_0  conda-forge         \n",
+      "mlflow                         1.4.0          py38_0  conda-forge         \n",
+      "mlflow                         1.5.0          py36_0  conda-forge         \n",
+      "mlflow                         1.5.0          py36_1  conda-forge         \n",
+      "mlflow                         1.5.0          py37_0  conda-forge         \n",
+      "mlflow                         1.5.0          py37_1  conda-forge         \n",
+      "mlflow                         1.5.0          py38_0  conda-forge         \n",
+      "mlflow                         1.5.0          py38_1  conda-forge         \n",
+      "mlflow                         1.6.0          py36_0  conda-forge         \n",
+      "mlflow                         1.6.0          py37_0  conda-forge         \n",
+      "mlflow                         1.6.0          py38_0  conda-forge         \n",
+      "mlflow                         1.7.0          py36_0  conda-forge         \n",
+      "mlflow                         1.7.0          py37_0  conda-forge         \n",
+      "mlflow                         1.7.0          py38_0  conda-forge         \n",
+      "mlflow                         1.7.1  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.7.1  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.7.1  py38h32f6830_0  conda-forge         \n",
+      "mlflow                         1.7.2  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.7.2  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.7.2  py38h32f6830_0  conda-forge         \n",
+      "mlflow                         1.8.0  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.8.0  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.8.0  py38h32f6830_0  conda-forge         \n",
+      "mlflow                         1.9.1  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                         1.9.1  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                         1.9.1  py38h32f6830_0  conda-forge         \n",
+      "mlflow                        1.10.0  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                        1.10.0  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                        1.10.0  py38h32f6830_0  conda-forge         \n",
+      "mlflow                        1.11.0  py36h9f0ad1d_0  conda-forge         \n",
+      "mlflow                        1.11.0  py36h9f0ad1d_1  conda-forge         \n",
+      "mlflow                        1.11.0  py37hc8dfbb8_0  conda-forge         \n",
+      "mlflow                        1.11.0  py37hc8dfbb8_1  conda-forge         \n",
+      "mlflow                        1.11.0  py38h32f6830_0  conda-forge         \n",
+      "mlflow                        1.11.0  py38h32f6830_1  conda-forge         \n",
+      "mlflow                        1.12.0  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.12.0  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.12.0  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.12.1  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.12.1  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.12.1  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                          1.13  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                          1.13  py37h89c1867_0  conda-forge         \n",
+      "mlflow                          1.13  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.13.1  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.13.1  py36h5fab9bb_2  conda-forge         \n",
+      "mlflow                        1.13.1  py36hd000896_2  conda-forge         \n",
+      "mlflow                        1.13.1  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.13.1  py37h89c1867_2  conda-forge         \n",
+      "mlflow                        1.13.1  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.13.1  py38h578d9bd_2  conda-forge         \n",
+      "mlflow                        1.13.1  py39hf3d152e_2  conda-forge         \n",
+      "mlflow                        1.14.0  py36h24e63a9_1  conda-forge         \n",
+      "mlflow                        1.14.0  py36h5fab9bb_0  conda-forge         \n",
+      "mlflow                        1.14.0  py36h87b8279_1  conda-forge         \n",
+      "mlflow                        1.14.0  py36hd000896_0  conda-forge         \n",
+      "mlflow                        1.14.0  py37h02d9ccd_1  conda-forge         \n",
+      "mlflow                        1.14.0  py37h89c1867_0  conda-forge         \n",
+      "mlflow                        1.14.0  py38h578d9bd_0  conda-forge         \n",
+      "mlflow                        1.14.0  py38he918c71_1  conda-forge         \n",
+      "mlflow                        1.14.0  py39ha39b057_1  conda-forge         \n",
+      "mlflow                        1.14.0  py39hf3d152e_0  conda-forge         \n",
+      "mlflow                        1.14.1  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.14.1  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.14.1  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.14.1  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.14.1  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.15.0  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.15.0  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.15.0  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.15.0  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.15.0  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.16.0  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.16.0  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.16.0  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.16.0  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.16.0  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.17.0  py36h24e63a9_0  conda-forge         \n",
+      "mlflow                        1.17.0  py36h24e63a9_1  conda-forge         \n",
+      "mlflow                        1.17.0  py36h87b8279_0  conda-forge         \n",
+      "mlflow                        1.17.0  py36h87b8279_1  conda-forge         \n",
+      "mlflow                        1.17.0  py37h02d9ccd_0  conda-forge         \n",
+      "mlflow                        1.17.0  py37h02d9ccd_1  conda-forge         \n",
+      "mlflow                        1.17.0  py38he918c71_0  conda-forge         \n",
+      "mlflow                        1.17.0  py38he918c71_1  conda-forge         \n",
+      "mlflow                        1.17.0  py39ha39b057_0  conda-forge         \n",
+      "mlflow                        1.17.0  py39ha39b057_1  conda-forge         \n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda search mlflow"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "327015c2",
+   "metadata": {},
+   "source": [
+    "\n",
+    "## Środowiska (Environments)\n",
+    "- Podstawową funkcjonalnością, którą zapewnia conda są izolowane środowiska\n",
+    "- Nie zapewniają one takiego stopnia izolacji co np. Docker, ale ma to swoje zalety\n",
+    "- Środowisko to tak naprawdę katalog zawierający zbiór bibliotek, plików wykonywalnych i innych zależności\n",
+    "- Środowiska mogą zawierać różne wersje zarówno modułów Python jak i bibliotek systemowych, plików wykonywalnych (w tym samego Pythona)\n",
+    "- Domyślne środowisko nazywa się `base`. Nie powinniśmy go modyfikować a raczej tworzyć nowe środowisko dla każdego zastosowania"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "0ef28a62",
+   "metadata": {},
+   "source": [
+    "Wyświetlanie listy środowisk:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "2865a5cf",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "# conda environments:\n",
+      "#\n",
+      "                         /home/tomek/anaconda3\n",
+      "base                  *  /home/tomek/miniconda3\n",
+      "mlflow-004410b12f95e2e00831a0ba11ee1bfdc29d6f9d     /home/tomek/miniconda3/envs/mlflow-004410b12f95e2e00831a0ba11ee1bfdc29d6f9d\n",
+      "mlflow-503f0c7520a32f054a9d168bd099584a9439de9d     /home/tomek/miniconda3/envs/mlflow-503f0c7520a32f054a9d168bd099584a9439de9d\n",
+      "mlflow-5987e03d4dbaa5faa1a697bb113be9b9bdc39b29     /home/tomek/miniconda3/envs/mlflow-5987e03d4dbaa5faa1a697bb113be9b9bdc39b29\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda info --envs"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c710e400",
+   "metadata": {},
+   "source": [
+    "### Tworzenie środowiska\n",
+    "Środowisko można utworzyć i skonfigurować interaktywnie, lub z pliku `*.yml`"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "8cd7d3f0",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Collecting package metadata (current_repodata.json): done\n",
+      "Solving environment: done\n",
+      "\n",
+      "## Package Plan ##\n",
+      "\n",
+      "  environment location: /home/tomek/miniconda3/envs/hello_env\n",
+      "\n",
+      "\n",
+      "\n",
+      "Preparing transaction: done\n",
+      "Verifying transaction: done\n",
+      "Executing transaction: done\n",
+      "#\n",
+      "# To activate this environment, use\n",
+      "#\n",
+      "#     $ conda activate hello_env\n",
+      "#\n",
+      "# To deactivate an active environment, use\n",
+      "#\n",
+      "#     $ conda deactivate\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda create --name hello_env -y"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "843c0104",
+   "metadata": {},
+   "source": [
+    "### Aktywacja środowiska\n",
+    " - Żeby zmodyfikować środowisko albo zacząć z niego korzystać, musimy je aktywować.\n",
+    " - Aktywacja środowiska polega tak naprawdę na zmianie zmiennych środowiskowych, które mówią programom gdzie szukać ładowanych przez nie bibliotek i plików wykonywalnych, takich jak `PATH`, `PYTHON_PATH` itp.\n",
+    " - Po aktywowaniu środowiska w konsoli zobaczymy jego nazwę dopisaną na początku lini poleceń:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a6adf414",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "$ conda activate hello_env\n",
+    "(hello_env) tomek@tomek-asus:/home$ python3 --version\n",
+    "Python 3.8.5\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8457c95e",
+   "metadata": {},
+   "source": [
+    "Domyślnie wersja pythona będzie taka sama jak systemowa.\n",
+    "Żeby deaktywować środowisko, używamy `conda deactivate`:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "e3175dc3",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "$ conda deactivate\n",
+    "python3 --version\n",
+    "Python 3.8.5\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "753ff7e5",
+   "metadata": {},
+   "source": [
+    "### Modyfikowanie środowiska\n",
+    "Jeśli chcemy stworzyc środowisko z inną wersją niż systemowa:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "5b5b0ca0",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Collecting package metadata (current_repodata.json): done\n",
+      "Solving environment: done\n",
+      "\n",
+      "## Package Plan ##\n",
+      "\n",
+      "  environment location: /home/tomek/miniconda3/envs/myenv\n",
+      "\n",
+      "  added / updated specs:\n",
+      "    - python=3.9\n",
+      "\n",
+      "\n",
+      "The following packages will be downloaded:\n",
+      "\n",
+      "    package                    |            build\n",
+      "    ---------------------------|-----------------\n",
+      "    _libgcc_mutex-0.1          |      conda_forge           3 KB  conda-forge\n",
+      "    _openmp_mutex-4.5          |            1_gnu          22 KB  conda-forge\n",
+      "    ld_impl_linux-64-2.35.1    |       hea4e1c9_2         618 KB  conda-forge\n",
+      "    libffi-3.3                 |       h58526e2_2          51 KB  conda-forge\n",
+      "    libgcc-ng-9.3.0            |      h2828fa1_19         7.8 MB  conda-forge\n",
+      "    libgomp-9.3.0              |      h2828fa1_19         376 KB  conda-forge\n",
+      "    libstdcxx-ng-9.3.0         |      h6de172a_19         4.0 MB  conda-forge\n",
+      "    ncurses-6.2                |       h58526e2_4         985 KB  conda-forge\n",
+      "    openssl-1.1.1k             |       h7f98852_0         2.1 MB  conda-forge\n",
+      "    pip-21.1.2                 |     pyhd8ed1ab_0         1.1 MB  conda-forge\n",
+      "    python-3.9.4               |hffdb5ce_0_cpython        27.4 MB  conda-forge\n",
+      "    readline-8.1               |       h46c0cb4_0         295 KB  conda-forge\n",
+      "    setuptools-49.6.0          |   py39hf3d152e_3         943 KB  conda-forge\n",
+      "    tk-8.6.10                  |       h21135ba_1         3.2 MB  conda-forge\n",
+      "    tzdata-2021a               |       he74cb21_0         121 KB  conda-forge\n",
+      "    wheel-0.36.2               |     pyhd3deb0d_0          31 KB  conda-forge\n",
+      "    xz-5.2.5                   |       h516909a_1         343 KB  conda-forge\n",
+      "    zlib-1.2.11                |    h516909a_1010         106 KB  conda-forge\n",
+      "    ------------------------------------------------------------\n",
+      "                                           Total:        49.4 MB\n",
+      "\n",
+      "The following NEW packages will be INSTALLED:\n",
+      "\n",
+      "  _libgcc_mutex      conda-forge/linux-64::_libgcc_mutex-0.1-conda_forge\n",
+      "  _openmp_mutex      conda-forge/linux-64::_openmp_mutex-4.5-1_gnu\n",
+      "  ca-certificates    conda-forge/linux-64::ca-certificates-2020.12.5-ha878542_0\n",
+      "  certifi            conda-forge/linux-64::certifi-2020.12.5-py39hf3d152e_1\n",
+      "  ld_impl_linux-64   conda-forge/linux-64::ld_impl_linux-64-2.35.1-hea4e1c9_2\n",
+      "  libffi             conda-forge/linux-64::libffi-3.3-h58526e2_2\n",
+      "  libgcc-ng          conda-forge/linux-64::libgcc-ng-9.3.0-h2828fa1_19\n",
+      "  libgomp            conda-forge/linux-64::libgomp-9.3.0-h2828fa1_19\n",
+      "  libstdcxx-ng       conda-forge/linux-64::libstdcxx-ng-9.3.0-h6de172a_19\n",
+      "  ncurses            conda-forge/linux-64::ncurses-6.2-h58526e2_4\n",
+      "  openssl            conda-forge/linux-64::openssl-1.1.1k-h7f98852_0\n",
+      "  pip                conda-forge/noarch::pip-21.1.2-pyhd8ed1ab_0\n",
+      "  python             conda-forge/linux-64::python-3.9.4-hffdb5ce_0_cpython\n",
+      "  python_abi         conda-forge/linux-64::python_abi-3.9-1_cp39\n",
+      "  readline           conda-forge/linux-64::readline-8.1-h46c0cb4_0\n",
+      "  setuptools         conda-forge/linux-64::setuptools-49.6.0-py39hf3d152e_3\n",
+      "  sqlite             conda-forge/linux-64::sqlite-3.35.5-h74cdb3f_0\n",
+      "  tk                 conda-forge/linux-64::tk-8.6.10-h21135ba_1\n",
+      "  tzdata             conda-forge/noarch::tzdata-2021a-he74cb21_0\n",
+      "  wheel              conda-forge/noarch::wheel-0.36.2-pyhd3deb0d_0\n",
+      "  xz                 conda-forge/linux-64::xz-5.2.5-h516909a_1\n",
+      "  zlib               conda-forge/linux-64::zlib-1.2.11-h516909a_1010\n",
+      "\n",
+      "\n",
+      "\n",
+      "Downloading and Extracting Packages\n",
+      "openssl-1.1.1k       | 2.1 MB    | ##################################### | 100% \n",
+      "_libgcc_mutex-0.1    | 3 KB      | ##################################### | 100% \n",
+      "xz-5.2.5             | 343 KB    | ##################################### | 100% \n",
+      "zlib-1.2.11          | 106 KB    | ##################################### | 100% \n",
+      "tk-8.6.10            | 3.2 MB    | ##################################### | 100% \n",
+      "python-3.9.4         | 27.4 MB   | ##################################### | 100% \n",
+      "ncurses-6.2          | 985 KB    | ##################################### | 100% \n",
+      "libstdcxx-ng-9.3.0   | 4.0 MB    | ##################################### | 100% \n",
+      "tzdata-2021a         | 121 KB    | ##################################### | 100% \n",
+      "setuptools-49.6.0    | 943 KB    | ##################################### | 100% \n",
+      "wheel-0.36.2         | 31 KB     | ##################################### | 100% \n",
+      "_openmp_mutex-4.5    | 22 KB     | ##################################### | 100% \n",
+      "libffi-3.3           | 51 KB     | ##################################### | 100% \n",
+      "libgomp-9.3.0        | 376 KB    | ##################################### | 100% \n",
+      "ld_impl_linux-64-2.3 | 618 KB    | ##################################### | 100% \n",
+      "readline-8.1         | 295 KB    | ##################################### | 100% \n",
+      "pip-21.1.2           | 1.1 MB    | ##################################### | 100% \n",
+      "libgcc-ng-9.3.0      | 7.8 MB    | ##################################### | 100% \n",
+      "Preparing transaction: done\n",
+      "Verifying transaction: done\n",
+      "Executing transaction: done\n",
+      "#\n",
+      "# To activate this environment, use\n",
+      "#\n",
+      "#     $ conda activate myenv\n",
+      "#\n",
+      "# To deactivate an active environment, use\n",
+      "#\n",
+      "#     $ conda deactivate\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda create -y -n myenv python=3.9"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a3350d71",
+   "metadata": {},
+   "source": [
+    "Rzeczywiście, stworzone środowisko ma wersję Pythona z linii 3.9:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "ee072a93",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "$ conda activate myenv\n",
+    "(myenv)$ python3 --version\n",
+    "Python 3.9.4\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "89d443aa",
+   "metadata": {},
+   "source": [
+    "Tak samo, przy tworzeniu środowiska możemy podać inne zależności wraz z ich wersjami:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "id": "402c122e",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Collecting package metadata (current_repodata.json): done\n",
+      "Solving environment: done\n",
+      "\n",
+      "## Package Plan ##\n",
+      "\n",
+      "  environment location: /home/tomek/miniconda3/envs/p39-mlflow-pandas\n",
+      "\n",
+      "  added / updated specs:\n",
+      "    - mlflow\n",
+      "    - pandas=1.2.3\n",
+      "    - python=3.9\n",
+      "\n",
+      "\n",
+      "The following packages will be downloaded:\n",
+      "\n",
+      "    package                    |            build\n",
+      "    ---------------------------|-----------------\n",
+      "    alembic-1.6.3              |     pyhd8ed1ab_0         114 KB  conda-forge\n",
+      "    appdirs-1.4.4              |     pyh9f0ad1d_0          13 KB  conda-forge\n",
+      "    asn1crypto-1.4.0           |     pyh9f0ad1d_0          78 KB  conda-forge\n",
+      "    brotlipy-0.7.0             |py39h3811e60_1001         341 KB  conda-forge\n",
+      "    cffi-1.14.5                |   py39he32792d_0         227 KB  conda-forge\n",
+      "    chardet-4.0.0              |   py39hf3d152e_1         205 KB  conda-forge\n",
+      "    click-8.0.1                |   py39hf3d152e_0         146 KB  conda-forge\n",
+      "    cloudpickle-1.6.0          |             py_0          22 KB  conda-forge\n",
+      "    configparser-5.0.2         |     pyhd8ed1ab_0          21 KB  conda-forge\n",
+      "    cryptography-3.4.7         |   py39hbca0aa6_0         1.1 MB  conda-forge\n",
+      "    databricks-cli-0.9.1       |             py_0          48 KB  conda-forge\n",
+      "    dataclasses-0.8            |     pyhc8e2a94_1           7 KB  conda-forge\n",
+      "    docker-py-5.0.0            |   py39hf3d152e_0         187 KB  conda-forge\n",
+      "    docker-pycreds-0.4.0       |             py_0          11 KB  conda-forge\n",
+      "    entrypoints-0.3            |  pyhd8ed1ab_1003           8 KB  conda-forge\n",
+      "    flask-2.0.1                |     pyhd8ed1ab_0          70 KB  conda-forge\n",
+      "    gitdb-4.0.7                |     pyhd8ed1ab_0          46 KB  conda-forge\n",
+      "    gitpython-3.1.17           |     pyhd8ed1ab_0         115 KB  conda-forge\n",
+      "    gorilla-0.4.0              |     pyhd8ed1ab_0          13 KB  conda-forge\n",
+      "    greenlet-1.1.0             |   py39he80948d_0          84 KB  conda-forge\n",
+      "    gunicorn-20.1.0            |   py39hf3d152e_0         119 KB  conda-forge\n",
+      "    idna-2.10                  |     pyh9f0ad1d_0          52 KB  conda-forge\n",
+      "    itsdangerous-2.0.1         |     pyhd8ed1ab_0          17 KB  conda-forge\n",
+      "    jinja2-3.0.1               |     pyhd8ed1ab_0          99 KB  conda-forge\n",
+      "    libblas-3.9.0              |       9_openblas          11 KB  conda-forge\n",
+      "    libcblas-3.9.0             |       9_openblas          11 KB  conda-forge\n",
+      "    libgfortran-ng-9.3.0       |      hff62375_19          22 KB  conda-forge\n",
+      "    libgfortran5-9.3.0         |      hff62375_19         2.0 MB  conda-forge\n",
+      "    liblapack-3.9.0            |       9_openblas          11 KB  conda-forge\n",
+      "    libopenblas-0.3.15         |pthreads_h8fe5266_1         9.2 MB  conda-forge\n",
+      "    libprotobuf-3.17.0         |       h780b84a_0         2.5 MB  conda-forge\n",
+      "    mako-1.1.4                 |     pyh44b312d_0          58 KB  conda-forge\n",
+      "    markupsafe-2.0.1           |   py39h3811e60_0          22 KB  conda-forge\n",
+      "    mlflow-1.2.0               |             py_1         3.4 MB  conda-forge\n",
+      "    numpy-1.20.3               |   py39hdbf815f_0         5.8 MB  conda-forge\n",
+      "    packaging-20.9             |     pyh44b312d_0          35 KB  conda-forge\n",
+      "    pandas-1.2.3               |   py39hde0f152_0        12.1 MB  conda-forge\n",
+      "    protobuf-3.17.0            |   py39he80948d_0         346 KB  conda-forge\n",
+      "    pycparser-2.20             |     pyh9f0ad1d_2          94 KB  conda-forge\n",
+      "    pyopenssl-20.0.1           |     pyhd8ed1ab_0          48 KB  conda-forge\n",
+      "    pyparsing-2.4.7            |     pyh9f0ad1d_0          60 KB  conda-forge\n",
+      "    pysocks-1.7.1              |   py39hf3d152e_3          28 KB  conda-forge\n",
+      "    python-dateutil-2.8.1      |             py_0         220 KB  conda-forge\n",
+      "    python-editor-1.0.4        |             py_0           9 KB  conda-forge\n",
+      "    pytz-2021.1                |     pyhd8ed1ab_0         239 KB  conda-forge\n",
+      "    pyyaml-5.4.1               |   py39h3811e60_0         193 KB  conda-forge\n",
+      "    querystring_parser-1.2.4   |             py_0          10 KB  conda-forge\n",
+      "    requests-2.25.1            |     pyhd3deb0d_0          51 KB  conda-forge\n",
+      "    simplejson-3.17.2          |   py39h3811e60_2         103 KB  conda-forge\n",
+      "    six-1.16.0                 |     pyh6c4a22f_0          14 KB  conda-forge\n",
+      "    smmap-3.0.5                |     pyh44b312d_0          22 KB  conda-forge\n",
+      "    sqlalchemy-1.4.15          |   py39h3811e60_0         2.3 MB  conda-forge\n",
+      "    sqlparse-0.4.1             |     pyh9f0ad1d_0          34 KB  conda-forge\n",
+      "    tabulate-0.8.9             |     pyhd8ed1ab_0          26 KB  conda-forge\n",
+      "    typing_extensions-3.7.4.3  |             py_0          25 KB  conda-forge\n",
+      "    urllib3-1.26.4             |     pyhd8ed1ab_0          99 KB  conda-forge\n",
+      "    websocket-client-0.57.0    |   py39hf3d152e_4          59 KB  conda-forge\n",
+      "    werkzeug-2.0.1             |     pyhd8ed1ab_0         219 KB  conda-forge\n",
+      "    yaml-0.2.5                 |       h516909a_0          82 KB  conda-forge\n",
+      "    ------------------------------------------------------------\n",
+      "                                           Total:        42.3 MB\n",
+      "\n",
+      "The following NEW packages will be INSTALLED:\n",
+      "\n",
+      "  _libgcc_mutex      conda-forge/linux-64::_libgcc_mutex-0.1-conda_forge\n",
+      "  _openmp_mutex      conda-forge/linux-64::_openmp_mutex-4.5-1_gnu\n",
+      "  alembic            conda-forge/noarch::alembic-1.6.3-pyhd8ed1ab_0\n",
+      "  appdirs            conda-forge/noarch::appdirs-1.4.4-pyh9f0ad1d_0\n",
+      "  asn1crypto         conda-forge/noarch::asn1crypto-1.4.0-pyh9f0ad1d_0\n",
+      "  brotlipy           conda-forge/linux-64::brotlipy-0.7.0-py39h3811e60_1001\n",
+      "  ca-certificates    conda-forge/linux-64::ca-certificates-2020.12.5-ha878542_0\n",
+      "  certifi            conda-forge/linux-64::certifi-2020.12.5-py39hf3d152e_1\n",
+      "  cffi               conda-forge/linux-64::cffi-1.14.5-py39he32792d_0\n",
+      "  chardet            conda-forge/linux-64::chardet-4.0.0-py39hf3d152e_1\n",
+      "  click              conda-forge/linux-64::click-8.0.1-py39hf3d152e_0\n",
+      "  cloudpickle        conda-forge/noarch::cloudpickle-1.6.0-py_0\n",
+      "  configparser       conda-forge/noarch::configparser-5.0.2-pyhd8ed1ab_0\n",
+      "  cryptography       conda-forge/linux-64::cryptography-3.4.7-py39hbca0aa6_0\n",
+      "  databricks-cli     conda-forge/noarch::databricks-cli-0.9.1-py_0\n",
+      "  dataclasses        conda-forge/noarch::dataclasses-0.8-pyhc8e2a94_1\n",
+      "  docker-py          conda-forge/linux-64::docker-py-5.0.0-py39hf3d152e_0\n",
+      "  docker-pycreds     conda-forge/noarch::docker-pycreds-0.4.0-py_0\n",
+      "  entrypoints        conda-forge/noarch::entrypoints-0.3-pyhd8ed1ab_1003\n",
+      "  flask              conda-forge/noarch::flask-2.0.1-pyhd8ed1ab_0\n",
+      "  gitdb              conda-forge/noarch::gitdb-4.0.7-pyhd8ed1ab_0\n",
+      "  gitpython          conda-forge/noarch::gitpython-3.1.17-pyhd8ed1ab_0\n",
+      "  gorilla            conda-forge/noarch::gorilla-0.4.0-pyhd8ed1ab_0\n",
+      "  greenlet           conda-forge/linux-64::greenlet-1.1.0-py39he80948d_0\n",
+      "  gunicorn           conda-forge/linux-64::gunicorn-20.1.0-py39hf3d152e_0\n",
+      "  idna               conda-forge/noarch::idna-2.10-pyh9f0ad1d_0\n",
+      "  itsdangerous       conda-forge/noarch::itsdangerous-2.0.1-pyhd8ed1ab_0\n",
+      "  jinja2             conda-forge/noarch::jinja2-3.0.1-pyhd8ed1ab_0\n",
+      "  ld_impl_linux-64   conda-forge/linux-64::ld_impl_linux-64-2.35.1-hea4e1c9_2\n",
+      "  libblas            conda-forge/linux-64::libblas-3.9.0-9_openblas\n",
+      "  libcblas           conda-forge/linux-64::libcblas-3.9.0-9_openblas\n",
+      "  libffi             conda-forge/linux-64::libffi-3.3-h58526e2_2\n",
+      "  libgcc-ng          conda-forge/linux-64::libgcc-ng-9.3.0-h2828fa1_19\n",
+      "  libgfortran-ng     conda-forge/linux-64::libgfortran-ng-9.3.0-hff62375_19\n",
+      "  libgfortran5       conda-forge/linux-64::libgfortran5-9.3.0-hff62375_19\n",
+      "  libgomp            conda-forge/linux-64::libgomp-9.3.0-h2828fa1_19\n",
+      "  liblapack          conda-forge/linux-64::liblapack-3.9.0-9_openblas\n",
+      "  libopenblas        conda-forge/linux-64::libopenblas-0.3.15-pthreads_h8fe5266_1\n",
+      "  libprotobuf        conda-forge/linux-64::libprotobuf-3.17.0-h780b84a_0\n",
+      "  libstdcxx-ng       conda-forge/linux-64::libstdcxx-ng-9.3.0-h6de172a_19\n",
+      "  mako               conda-forge/noarch::mako-1.1.4-pyh44b312d_0\n",
+      "  markupsafe         conda-forge/linux-64::markupsafe-2.0.1-py39h3811e60_0\n",
+      "  mlflow             conda-forge/noarch::mlflow-1.2.0-py_1\n",
+      "  ncurses            conda-forge/linux-64::ncurses-6.2-h58526e2_4\n",
+      "  numpy              conda-forge/linux-64::numpy-1.20.3-py39hdbf815f_0\n",
+      "  openssl            conda-forge/linux-64::openssl-1.1.1k-h7f98852_0\n",
+      "  packaging          conda-forge/noarch::packaging-20.9-pyh44b312d_0\n",
+      "  pandas             conda-forge/linux-64::pandas-1.2.3-py39hde0f152_0\n",
+      "  pip                conda-forge/noarch::pip-21.1.2-pyhd8ed1ab_0\n",
+      "  protobuf           conda-forge/linux-64::protobuf-3.17.0-py39he80948d_0\n",
+      "  pycparser          conda-forge/noarch::pycparser-2.20-pyh9f0ad1d_2\n",
+      "  pyopenssl          conda-forge/noarch::pyopenssl-20.0.1-pyhd8ed1ab_0\n",
+      "  pyparsing          conda-forge/noarch::pyparsing-2.4.7-pyh9f0ad1d_0\n",
+      "  pysocks            conda-forge/linux-64::pysocks-1.7.1-py39hf3d152e_3\n",
+      "  python             conda-forge/linux-64::python-3.9.4-hffdb5ce_0_cpython\n",
+      "  python-dateutil    conda-forge/noarch::python-dateutil-2.8.1-py_0\n",
+      "  python-editor      conda-forge/noarch::python-editor-1.0.4-py_0\n",
+      "  python_abi         conda-forge/linux-64::python_abi-3.9-1_cp39\n",
+      "  pytz               conda-forge/noarch::pytz-2021.1-pyhd8ed1ab_0\n",
+      "  pyyaml             conda-forge/linux-64::pyyaml-5.4.1-py39h3811e60_0\n",
+      "  querystring_parser conda-forge/noarch::querystring_parser-1.2.4-py_0\n",
+      "  readline           conda-forge/linux-64::readline-8.1-h46c0cb4_0\n",
+      "  requests           conda-forge/noarch::requests-2.25.1-pyhd3deb0d_0\n",
+      "  setuptools         conda-forge/linux-64::setuptools-49.6.0-py39hf3d152e_3\n",
+      "  simplejson         conda-forge/linux-64::simplejson-3.17.2-py39h3811e60_2\n",
+      "  six                conda-forge/noarch::six-1.16.0-pyh6c4a22f_0\n",
+      "  smmap              conda-forge/noarch::smmap-3.0.5-pyh44b312d_0\n",
+      "  sqlalchemy         conda-forge/linux-64::sqlalchemy-1.4.15-py39h3811e60_0\n",
+      "  sqlite             conda-forge/linux-64::sqlite-3.35.5-h74cdb3f_0\n",
+      "  sqlparse           conda-forge/noarch::sqlparse-0.4.1-pyh9f0ad1d_0\n",
+      "  tabulate           conda-forge/noarch::tabulate-0.8.9-pyhd8ed1ab_0\n",
+      "  tk                 conda-forge/linux-64::tk-8.6.10-h21135ba_1\n",
+      "  typing_extensions  conda-forge/noarch::typing_extensions-3.7.4.3-py_0\n",
+      "  tzdata             conda-forge/noarch::tzdata-2021a-he74cb21_0\n",
+      "  urllib3            conda-forge/noarch::urllib3-1.26.4-pyhd8ed1ab_0\n",
+      "  websocket-client   conda-forge/linux-64::websocket-client-0.57.0-py39hf3d152e_4\n",
+      "  werkzeug           conda-forge/noarch::werkzeug-2.0.1-pyhd8ed1ab_0\n",
+      "  wheel              conda-forge/noarch::wheel-0.36.2-pyhd3deb0d_0\n",
+      "  xz                 conda-forge/linux-64::xz-5.2.5-h516909a_1\n",
+      "  yaml               conda-forge/linux-64::yaml-0.2.5-h516909a_0\n",
+      "  zlib               conda-forge/linux-64::zlib-1.2.11-h516909a_1010\n",
+      "\n",
+      "\n",
+      "\n",
+      "Downloading and Extracting Packages\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "smmap-3.0.5          | 22 KB     | ##################################### | 100% \n",
+      "sqlalchemy-1.4.15    | 2.3 MB    | ##################################### | 100% \n",
+      "appdirs-1.4.4        | 13 KB     | ##################################### | 100% \n",
+      "gunicorn-20.1.0      | 119 KB    | ##################################### | 100% \n",
+      "pyopenssl-20.0.1     | 48 KB     | ##################################### | 100% \n",
+      "mako-1.1.4           | 58 KB     | ##################################### | 100% \n",
+      "libopenblas-0.3.15   | 9.2 MB    | ##################################### | 100% \n",
+      "libcblas-3.9.0       | 11 KB     | ##################################### | 100% \n",
+      "gitdb-4.0.7          | 46 KB     | ##################################### | 100% \n",
+      "click-8.0.1          | 146 KB    | ##################################### | 100% \n",
+      "gorilla-0.4.0        | 13 KB     | ##################################### | 100% \n",
+      "gitpython-3.1.17     | 115 KB    | ##################################### | 100% \n",
+      "typing_extensions-3. | 25 KB     | ##################################### | 100% \n",
+      "pysocks-1.7.1        | 28 KB     | ##################################### | 100% \n",
+      "pandas-1.2.3         | 12.1 MB   | ##################################### | 100% \n",
+      "libgfortran-ng-9.3.0 | 22 KB     | ##################################### | 100% \n",
+      "docker-pycreds-0.4.0 | 11 KB     | ##################################### | 100% \n",
+      "docker-py-5.0.0      | 187 KB    | ##################################### | 100% \n",
+      "itsdangerous-2.0.1   | 17 KB     | ##################################### | 100% \n",
+      "configparser-5.0.2   | 21 KB     | ##################################### | 100% \n",
+      "sqlparse-0.4.1       | 34 KB     | ##################################### | 100% \n",
+      "werkzeug-2.0.1       | 219 KB    | ##################################### | 100% \n",
+      "alembic-1.6.3        | 114 KB    | ##################################### | 100% \n",
+      "tabulate-0.8.9       | 26 KB     | ##################################### | 100% \n",
+      "cloudpickle-1.6.0    | 22 KB     | ##################################### | 100% \n",
+      "asn1crypto-1.4.0     | 78 KB     | ##################################### | 100% \n",
+      "brotlipy-0.7.0       | 341 KB    | ##################################### | 100% \n",
+      "dataclasses-0.8      | 7 KB      | ##################################### | 100% \n",
+      "cryptography-3.4.7   | 1.1 MB    | ##################################### | 100% \n",
+      "pycparser-2.20       | 94 KB     | ##################################### | 100% \n",
+      "libprotobuf-3.17.0   | 2.5 MB    | ##################################### | 100% \n",
+      "simplejson-3.17.2    | 103 KB    | ##################################### | 100% \n",
+      "requests-2.25.1      | 51 KB     | ##################################### | 100% \n",
+      "pytz-2021.1          | 239 KB    | ##################################### | 100% \n",
+      "flask-2.0.1          | 70 KB     | ##################################### | 100% \n",
+      "numpy-1.20.3         | 5.8 MB    | ##################################### | 100% \n",
+      "markupsafe-2.0.1     | 22 KB     | ##################################### | 100% \n",
+      "idna-2.10            | 52 KB     | ##################################### | 100% \n",
+      "six-1.16.0           | 14 KB     | ##################################### | 100% \n",
+      "libgfortran5-9.3.0   | 2.0 MB    | ##################################### | 100% \n",
+      "liblapack-3.9.0      | 11 KB     | ##################################### | 100% \n",
+      "pyparsing-2.4.7      | 60 KB     | ##################################### | 100% \n",
+      "packaging-20.9       | 35 KB     | ##################################### | 100% \n",
+      "jinja2-3.0.1         | 99 KB     | ##################################### | 100% \n",
+      "chardet-4.0.0        | 205 KB    | ##################################### | 100% \n",
+      "protobuf-3.17.0      | 346 KB    | ##################################### | 100% \n",
+      "urllib3-1.26.4       | 99 KB     | ##################################### | 100% \n",
+      "pyyaml-5.4.1         | 193 KB    | ##################################### | 100% \n",
+      "databricks-cli-0.9.1 | 48 KB     | ##################################### | 100% \n",
+      "websocket-client-0.5 | 59 KB     | ##################################### | 100% \n",
+      "python-dateutil-2.8. | 220 KB    | ##################################### | 100% \n",
+      "greenlet-1.1.0       | 84 KB     | ##################################### | 100% \n",
+      "entrypoints-0.3      | 8 KB      | ##################################### | 100% \n",
+      "yaml-0.2.5           | 82 KB     | ##################################### | 100% \n",
+      "libblas-3.9.0        | 11 KB     | ##################################### | 100% \n",
+      "mlflow-1.2.0         | 3.4 MB    | ##################################### | 100% \n",
+      "cffi-1.14.5          | 227 KB    | ##################################### | 100% \n",
+      "python-editor-1.0.4  | 9 KB      | ##################################### | 100% \n",
+      "querystring_parser-1 | 10 KB     | ##################################### | 100% \n",
+      "Preparing transaction: done\n",
+      "Verifying transaction: done\n",
+      "Executing transaction: done\n",
+      "#\n",
+      "# To activate this environment, use\n",
+      "#\n",
+      "#     $ conda activate p39-mlflow-pandas\n",
+      "#\n",
+      "# To deactivate an active environment, use\n",
+      "#\n",
+      "#     $ conda deactivate\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda create -y -n p39-mlflow-pandas python=3.9 pandas=1.2.3 mlflow"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4f9b7b29",
+   "metadata": {},
+   "source": [
+    "Możemy podać jakie pakiety i w jakich wersjach mają być domyślnie dodawane do nowo tworzonych środowisk za pomocą sekcji [create_default_package](https://conda.io/projects/conda/en/latest/user-guide/configuration/use-condarc.html#config-add-default-pkgs) w pliku [`~/.condarc`](https://conda.io/projects/conda/en/latest/user-guide/configuration/use-condarc.html)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "50346792",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "create_default_packages:\n",
+    "  - python=3.9\n",
+    "  - pandas=1.2.3\n",
+    "  - mlflow\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "01a9ea21",
+   "metadata": {},
+   "source": [
+    "Doinstalowanie nowych pakietów może odbyć się poprzez:\n",
+    " - `conda install mlflow` - wywołane w aktywowanym środowisku\n",
+    " - `conda install -n myenv  mlflow` - wywołane spoza atkywanego środowiska (instaluje mlflow w środowisku `myenv`)\n",
+    " - `pip install` - jeśli w środowisku mamy zainstalowane polecenie `pip` - używamy `pip` tylko, jeśli pakiet nie jest dostępny w repozytoriach conda. Uwagi dotyczące używania `pip` razem z Conda: [link](https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#using-pip-in-an-environment)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "7ec5430e",
+   "metadata": {},
+   "source": [
+    "#### Klonowanie środowiska\n",
+    "Istniejące środowisko można skopiować:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "18f72668",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "conda create --name myclone --clone myenv\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3bcaf2e6",
+   "metadata": {},
+   "source": [
+    "### Eksportowanie środowisk\n",
+    "- Definicję środowiska można wyeksportować do pliku `*.yml`, który może potem posłużyć do jego odtworzenia\n",
+    "- Takie pliki są np. wykorzystywane przez MLflow"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 26,
+   "id": "f901b34b",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "name: myenv\n",
+      "channels:\n",
+      "  - conda-forge\n",
+      "  - defaults\n",
+      "dependencies:\n",
+      "  - _libgcc_mutex=0.1=conda_forge\n",
+      "  - _openmp_mutex=4.5=1_gnu\n",
+      "  - ca-certificates=2020.12.5=ha878542_0\n",
+      "  - certifi=2020.12.5=py39hf3d152e_1\n",
+      "  - ld_impl_linux-64=2.35.1=hea4e1c9_2\n",
+      "  - libffi=3.3=h58526e2_2\n",
+      "  - libgcc-ng=9.3.0=h2828fa1_19\n",
+      "  - libgomp=9.3.0=h2828fa1_19\n",
+      "  - libstdcxx-ng=9.3.0=h6de172a_19\n",
+      "  - ncurses=6.2=h58526e2_4\n",
+      "  - openssl=1.1.1k=h7f98852_0\n",
+      "  - pip=21.1.2=pyhd8ed1ab_0\n",
+      "  - python=3.9.4=hffdb5ce_0_cpython\n",
+      "  - python_abi=3.9=1_cp39\n",
+      "  - readline=8.1=h46c0cb4_0\n",
+      "  - setuptools=49.6.0=py39hf3d152e_3\n",
+      "  - sqlite=3.35.5=h74cdb3f_0\n",
+      "  - tk=8.6.10=h21135ba_1\n",
+      "  - tzdata=2021a=he74cb21_0\n",
+      "  - wheel=0.36.2=pyhd3deb0d_0\n",
+      "  - xz=5.2.5=h516909a_1\n",
+      "  - zlib=1.2.11=h516909a_1010\n",
+      "prefix: /home/tomek/miniconda3/envs/myenv\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda env export -n myenv"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c9fb78ca",
+   "metadata": {},
+   "source": [
+    "Normalnie, zapisalibyśmy wyni eksportu do pliku:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 31,
+   "id": "048760fd",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda env export -n myenv > myenv.yml"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "7e3c1e11",
+   "metadata": {},
+   "source": [
+    "#### Eksport między systemami\n",
+    " - Jeśli chcemy zapeniwć, że nasze środowisko będzie można odtworzyć na innym systemie, musimy uyżyć flagi `--from-history`\n",
+    " - Użycie tej flagi spowoduje eksport jedynie tych zależności, które explicite instalowaliśmy (bez ich zależności, które mogą być niekompatybilne między systemami)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 29,
+   "id": "43fcb023",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "name: base\n",
+      "channels:\n",
+      "  - conda-forge\n",
+      "  - defaults\n",
+      "dependencies:\n",
+      "  - conda\n",
+      "  - python=3.9\n",
+      "  - jupyter\n",
+      "  - rise\n",
+      "  - anaconda-navigator\n",
+      "prefix: /home/tomek/miniconda3\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda env export --from-history #Jeśli nie podamy nazwy środowiska, eksportujemy aktywne środowisko"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9b67fddd",
+   "metadata": {},
+   "source": [
+    "### Tworzenie środowiska z pliku `*.yml`\n",
+    "Mając plik `*.yml` wyeksportowany za pomocą `conda env export` albo stworzony/zmodyfikowane [ręcznie](https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#create-env-file-manually), możemy utworzyć na jego podstawie środowisko:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 32,
+   "id": "4a4ce330",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Collecting package metadata (repodata.json): done\n",
+      "Solving environment: done\n",
+      "Preparing transaction: done\n",
+      "Verifying transaction: done\n",
+      "Executing transaction: done\n",
+      "#\n",
+      "# To activate this environment, use\n",
+      "#\n",
+      "#     $ conda activate myenv_from_file\n",
+      "#\n",
+      "# To deactivate an active environment, use\n",
+      "#\n",
+      "#     $ conda deactivate\n",
+      "\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda env create -n myenv_from_file -f myenv.yml"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f37e7aa7",
+   "metadata": {},
+   "source": [
+    "## Zadania\n",
+    "1. Zainstaluj Anaconda lub Miniconda na swoim komputerze\n",
+    "2. Stwórz środowisko zawierające wszystkie zależności wymagane przez stworzone na zajęciach skrypty/programy\n",
+    "3. Wyeksportuj środowisko do pliku `environment.yml` i dodaj ten plik do repozytorium"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.1"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}