diff --git a/IUM_05.Biblioteki_DL.ipynb b/IUM_05.Biblioteki_DL.ipynb
index 4d49da6..2456ccf 100644
--- a/IUM_05.Biblioteki_DL.ipynb
+++ b/IUM_05.Biblioteki_DL.ipynb
@@ -285,7 +285,7 @@
     }
    },
    "source": [
-    "## Zadanie [20 pkt.]\n",
+    "## Zadanie [22 pkt.]\n",
     "\n",
     "Termin: 2 tygodnie (25 IV)\n",
     "\n",
@@ -321,7 +321,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.5"
+   "version": "3.9.1"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/IUM_09.Python_srodowiska.ipynb b/IUM_09.Python_srodowiska.ipynb
index d0c2e1e..b2b2862 100644
--- a/IUM_09.Python_srodowiska.ipynb
+++ b/IUM_09.Python_srodowiska.ipynb
@@ -3,7 +3,11 @@
   {
    "cell_type": "markdown",
    "id": "be5ab2df",
-   "metadata": {},
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "# Środowiska wirtualne"
    ]
@@ -11,7 +15,11 @@
   {
    "cell_type": "markdown",
    "id": "cf14c577",
-   "metadata": {},
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "## Python Virtual Env\n",
     " - Python posiada wbudowany mechanizm do zarządzania wirtualnymi środowiskami\n",
@@ -23,16 +31,24 @@
   },
   {
    "cell_type": "markdown",
-   "id": "182bbf83",
-   "metadata": {},
+   "id": "85284459",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Poniżej stworzymy środowisko w katalogu `./myenv`:"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "69d39a9e",
-   "metadata": {},
+   "id": "9cabe194",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "$ python3 -m venv myenv\n",
@@ -41,16 +57,24 @@
   },
   {
    "cell_type": "markdown",
-   "id": "47a4bf00",
-   "metadata": {},
+   "id": "2a8b1048",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Teraz możemy je aktywować:"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "cf54cb09",
-   "metadata": {},
+   "id": "4619a71d",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "$ source ./myenv/bin/activate\n",
@@ -61,16 +85,24 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bdafb824",
-   "metadata": {},
+   "id": "2e5bf86a",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "I modyfikować instalując zależności:"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "399a8b45",
-   "metadata": {},
+   "id": "256149c4",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "(myenv) $ python3 -m pip install requests\n",
@@ -79,16 +111,24 @@
   },
   {
    "cell_type": "markdown",
-   "id": "efde93a2",
-   "metadata": {},
+   "id": "7fbba7d3",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Środowisko możemy deaktywować poprzez:"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "838c5ebd",
-   "metadata": {},
+   "id": "a2d688b7",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "deactivate\n",
@@ -97,16 +137,37 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0557e0c8",
-   "metadata": {},
+   "id": "0d3eb6d4",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Środowisko można udostępnić kopiując cały katalog ze środowiskiem"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "26f253cb",
+   "id": "90605b49",
    "metadata": {},
+   "source": [
+    "## pipx\n",
+    " - pipx: polecenie, które instaluje moduł Pythonowy w odrębnym środowisku wirtualnym venv\n",
+    " - jednocześnie dodaje powiązane z nim polecenie (\"Command line entry point\") do zmiennej `PATH`\n",
+    " - w ten sposób możemy zainstalować polecenie, które będzie globalnie dostępne a jednocześnie nie będzie \"mieszało\" w zależnościach modułów Pythonowych. Umożliwia to uniknięcie konfliktów między zależnościami i jednocześnie umożliwia dostęp do polecenia oferowanego przez moduł z poziomu systemu (bez ręcznej aktywacji środowiska)\n",
+    " - więcej informacji:  https://packaging.python.org/guides/installing-stand-alone-command-line-tools/\n",
+    " - https://github.com/pypa/pipx"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "26f253cb",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "## Conda\n",
     "> *Package, dependency and environment management for any language—Python, R, Ruby, Lua, Scala, Java, JavaScript, C/ C++, FORTRAN, and more.*\n",
@@ -122,15 +183,19 @@
     "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"
+    " - Paczki w PyPI (używane przez `pip`) pochodzą od ich autorów. Paczki w conda są  budowane przez conda albo społeczność conda-forge"
    ]
   },
   {
    "cell_type": "markdown",
    "id": "57f19a08",
-   "metadata": {},
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
-    "## Dystrybucje: Anaconda i Conda\n",
+    "## Dystrybucje: Anaconda i MiniConda\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",
@@ -149,8 +214,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b199274c",
-   "metadata": {},
+   "id": "d6d5156a",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "## Dystrybucje\n",
     " - Wersje paczek/bibliotek zawartych w danej dystrybucji są przetestowane pod względem zgodności ze sobą\n",
@@ -162,8 +231,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b1d8c391",
-   "metadata": {},
+   "id": "61d89bd2",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "$ conda update conda\n",
@@ -253,7 +326,11 @@
   {
    "cell_type": "markdown",
    "id": "1c7b2930",
-   "metadata": {},
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "## Instalacja\n",
     "Instrukcje: \n",
@@ -264,8 +341,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3edc108c",
-   "metadata": {},
+   "id": "0ceff229",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "## Pakiety Conda\n",
     "Pakiet (Package) conda to archiwum o rozszerzeniu `.tar.bz2` lub `.conda`zawierające:\n",
@@ -285,8 +366,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3094ba52",
-   "metadata": {},
+   "id": "f54f3bdb",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "### Repozytoria i kanały\n",
     "- Pakiety mogą być ściągane z różnych kanałów (\"channels\")\n",
@@ -298,8 +383,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c045d64",
-   "metadata": {},
+   "id": "5ab846d0",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Na przykład, pakiet `mlflow` nie jest dostępny na oficjalnym kanale:"
    ]
@@ -307,8 +396,12 @@
   {
    "cell_type": "code",
    "execution_count": 6,
-   "id": "9d72552f",
-   "metadata": {},
+   "id": "f301bdf7",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -347,8 +440,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "123b3e4e",
-   "metadata": {},
+   "id": "ea36f2cd",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Do poleceń `search` i `install` możemy dodać flagę `channel` co doda podany kanał do listy przeszukiwanych przez to polecenie kanałów:"
    ]
@@ -356,8 +453,12 @@
   {
    "cell_type": "code",
    "execution_count": 7,
-   "id": "d55a2d84",
-   "metadata": {},
+   "id": "61911bf5",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -475,8 +576,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a4994ed6",
-   "metadata": {},
+   "id": "c7cea2c5",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Możemy dodać kanał `conda-forge` tak, żeby był używany automatycznie (bez podawania flagi `channel`):"
    ]
@@ -484,8 +589,12 @@
   {
    "cell_type": "code",
    "execution_count": 11,
-   "id": "0f93ee82",
-   "metadata": {},
+   "id": "df31755c",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -503,8 +612,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "85d7014f",
-   "metadata": {},
+   "id": "33b4d692",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "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)"
@@ -513,8 +626,12 @@
   {
    "cell_type": "code",
    "execution_count": 10,
-   "id": "e57a28b9",
-   "metadata": {},
+   "id": "b5621afa",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -564,8 +681,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9e67e25c",
-   "metadata": {},
+   "id": "cb1df295",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Jak widać, po dodaniu kanału `conda-forge`, pakiet `mlflow` zostaje znaleziony:"
    ]
@@ -573,8 +694,12 @@
   {
    "cell_type": "code",
    "execution_count": 9,
-   "id": "56e51ade",
-   "metadata": {},
+   "id": "92b5da5b",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -692,8 +817,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "327015c2",
-   "metadata": {},
+   "id": "7ab96758",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "\n",
     "## Środowiska (Environments)\n",
@@ -706,8 +835,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0ef28a62",
-   "metadata": {},
+   "id": "5c57462d",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Wyświetlanie listy środowisk:"
    ]
@@ -715,8 +848,12 @@
   {
    "cell_type": "code",
    "execution_count": 12,
-   "id": "2865a5cf",
-   "metadata": {},
+   "id": "638002cd",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -741,8 +878,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c710e400",
-   "metadata": {},
+   "id": "e7e40897",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "### Tworzenie środowiska\n",
     "Środowisko można utworzyć i skonfigurować interaktywnie, lub z pliku `*.yml`"
@@ -751,8 +892,12 @@
   {
    "cell_type": "code",
    "execution_count": 14,
-   "id": "8cd7d3f0",
-   "metadata": {},
+   "id": "0373de68",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -790,8 +935,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "843c0104",
-   "metadata": {},
+   "id": "c8688ba6",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "### Aktywacja środowiska\n",
     " - Żeby zmodyfikować środowisko albo zacząć z niego korzystać, musimy je aktywować.\n",
@@ -801,8 +950,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a6adf414",
-   "metadata": {},
+   "id": "767f03e6",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "$ conda activate hello_env\n",
@@ -813,8 +966,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8457c95e",
-   "metadata": {},
+   "id": "245e64be",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Domyślnie wersja pythona będzie taka sama jak systemowa.\n",
     "Żeby deaktywować środowisko, używamy `conda deactivate`:"
@@ -822,8 +979,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e3175dc3",
-   "metadata": {},
+   "id": "261f9aab",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "$ conda deactivate\n",
@@ -834,8 +995,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "753ff7e5",
-   "metadata": {},
+   "id": "980c295c",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "### Modyfikowanie środowiska\n",
     "Jeśli chcemy stworzyc środowisko z inną wersją niż systemowa:"
@@ -844,8 +1009,12 @@
   {
    "cell_type": "code",
    "execution_count": 22,
-   "id": "5b5b0ca0",
-   "metadata": {},
+   "id": "ccaadc75",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -956,16 +1125,24 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a3350d71",
-   "metadata": {},
+   "id": "68bcd671",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Rzeczywiście, stworzone środowisko ma wersję Pythona z linii 3.9:"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "ee072a93",
-   "metadata": {},
+   "id": "db3311c4",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "$ conda activate myenv\n",
@@ -976,8 +1153,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "89d443aa",
-   "metadata": {},
+   "id": "10b5cf2e",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Tak samo, przy tworzeniu środowiska możemy podać inne zależności wraz z ich wersjami:"
    ]
@@ -985,8 +1166,12 @@
   {
    "cell_type": "code",
    "execution_count": 25,
-   "id": "402c122e",
-   "metadata": {},
+   "id": "dd2eefc5",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -1246,16 +1431,24 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4f9b7b29",
-   "metadata": {},
+   "id": "d8417e18",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "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": {},
+   "id": "7a2adbfa",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "```\n",
     "create_default_packages:\n",
@@ -1267,8 +1460,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "01a9ea21",
-   "metadata": {},
+   "id": "68c9045a",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Doinstalowanie nowych pakietów może odbyć się poprzez:\n",
     " - `conda install mlflow` - wywołane w aktywowanym środowisku\n",
@@ -1278,8 +1475,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7ec5430e",
-   "metadata": {},
+   "id": "a6c3ee99",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "#### Klonowanie środowiska\n",
     "Istniejące środowisko można skopiować:"
@@ -1288,8 +1489,12 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "18f72668",
-   "metadata": {},
+   "id": "4363044b",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [],
    "source": [
     "conda create --name myclone --clone myenv\n"
@@ -1297,8 +1502,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3bcaf2e6",
-   "metadata": {},
+   "id": "856b631d",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "### Eksportowanie środowisk\n",
     "- Definicję środowiska można wyeksportować do pliku `*.yml`, który może potem posłużyć do jego odtworzenia\n",
@@ -1308,8 +1517,12 @@
   {
    "cell_type": "code",
    "execution_count": 26,
-   "id": "f901b34b",
-   "metadata": {},
+   "id": "3f497efb",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -1354,8 +1567,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c9fb78ca",
-   "metadata": {},
+   "id": "69054adb",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "Normalnie, zapisalibyśmy wyni eksportu do pliku:"
    ]
@@ -1363,8 +1580,12 @@
   {
    "cell_type": "code",
    "execution_count": 31,
-   "id": "048760fd",
-   "metadata": {},
+   "id": "08bb0906",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -1381,8 +1602,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7e3c1e11",
-   "metadata": {},
+   "id": "8d0fd480",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "#### Eksport między systemami\n",
     " - Jeśli chcemy zapeniwć, że nasze środowisko będzie można odtworzyć na innym systemie, musimy uyżyć flagi `--from-history`\n",
@@ -1392,8 +1617,12 @@
   {
    "cell_type": "code",
    "execution_count": 29,
-   "id": "43fcb023",
-   "metadata": {},
+   "id": "9bfbf736",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -1421,8 +1650,12 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9b67fddd",
-   "metadata": {},
+   "id": "52965351",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "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:"
@@ -1431,8 +1664,12 @@
   {
    "cell_type": "code",
    "execution_count": 32,
-   "id": "4a4ce330",
-   "metadata": {},
+   "id": "efe7bcd9",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -1463,10 +1700,14 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f37e7aa7",
-   "metadata": {},
+   "id": "b88eb07c",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
-    "## Zadania\n",
+    "## Zadania [10pkt]\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"
@@ -1474,6 +1715,7 @@
   }
  ],
  "metadata": {
+  "celltoolbar": "Slideshow",
   "kernelspec": {
    "display_name": "Python 3",
    "language": "python",
diff --git a/IUM_10.DVC.ipynb b/IUM_10.DVC.ipynb
new file mode 100644
index 0000000..1c080cd
--- /dev/null
+++ b/IUM_10.DVC.ipynb
@@ -0,0 +1,1387 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "0c6f27a5",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "# DVC\n",
+    "<img src=\"img/expcontrol/dvc-logo.png\">"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "560eec71",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## DVC - Data Version Control\n",
+    "- [dvc.org](https://dvc.org/)\n",
+    "- \"Version Control System for Machine Learning Projects\" (System kontroli wersji dla projektów uczenia maszynowego)\n",
+    "- Open Source\n",
+    "- Umożliwia:\n",
+    "  - wersjonowanie danych i modeli. \"Git dla danych i modeli\"\n",
+    "  - budowanie potoków (\"pipeline\") definiujących jak budować/trenować/ewaluować modele. \"Makefile dla uczenia maszynowego\"\n",
+    "  - śledzeniem, porównywanie metryk i parametrów\n",
+    "- ściśle zintegowany z gitem\n",
+    "- działa niezależnie od używanego języka/bibliotek i systemu operacyjnego\n",
+    "- 5-minutowe wprowadzenie: https://www.youtube.com/watch?v=UbL7VUpv1Bs&t=197s"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9bfb356e",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## Instalacja i inicjalizacja\n",
+    " - https://dvc.org/doc/install\n",
+    " - ```pip(x) install dvc``` albo:\n",
+    " - ```conda install dvc```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "id": "054c7a11",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Collecting package metadata (current_repodata.json): done\n",
+      "Solving environment: failed with initial frozen solve. Retrying with flexible solve.\n",
+      "Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.\n",
+      "Collecting package metadata (repodata.json): done\n",
+      "Solving environment: done\n",
+      "\n",
+      "## Package Plan ##\n",
+      "\n",
+      "  environment location: /home/tomek/miniconda3\n",
+      "\n",
+      "  added / updated specs:\n",
+      "    - dvc\n",
+      "\n",
+      "\n",
+      "The following packages will be downloaded:\n",
+      "\n",
+      "    package                    |            build\n",
+      "    ---------------------------|-----------------\n",
+      "    atpublic-1.0               |             py_0           7 KB  conda-forge\n",
+      "    bzip2-1.0.8                |       h7f98852_4         484 KB  conda-forge\n",
+      "    cached-property-1.5.2      |       hd8ed1ab_1           4 KB  conda-forge\n",
+      "    cached_property-1.5.2      |     pyha770c72_1          11 KB  conda-forge\n",
+      "    colorama-0.4.4             |     pyh9f0ad1d_0          18 KB  conda-forge\n",
+      "    commonmark-0.9.1           |             py_0          46 KB  conda-forge\n",
+      "    configobj-5.0.6            |             py_0          31 KB  conda-forge\n",
+      "    dictdiffer-0.8.1           |     pyhd8ed1ab_0          16 KB  conda-forge\n",
+      "    diskcache-5.2.1            |     pyh44b312d_0          36 KB  conda-forge\n",
+      "    distro-1.5.0               |     pyh9f0ad1d_0          20 KB  conda-forge\n",
+      "    dpath-2.0.1                |   py39hf3d152e_0          23 KB  conda-forge\n",
+      "    dulwich-0.20.23            |   py39h3811e60_0         721 KB  conda-forge\n",
+      "    dvc-2.1.0                  |   py39hf3d152e_0         551 KB  conda-forge\n",
+      "    flatten-dict-0.3.0         |     pyh9f0ad1d_0          11 KB  conda-forge\n",
+      "    flufl.lock-3.2             |             py_0          19 KB  conda-forge\n",
+      "    fsspec-0.9.0               |     pyhd8ed1ab_2          75 KB  conda-forge\n",
+      "    ftfy-5.5.1                 |             py_0          47 KB  conda-forge\n",
+      "    funcy-1.16                 |     pyhd8ed1ab_0          30 KB  conda-forge\n",
+      "    future-0.18.2              |   py39hf3d152e_3         718 KB  conda-forge\n",
+      "    grandalf-0.6               |             py_0          42 KB  conda-forge\n",
+      "    jsonpath-ng-1.5.2          |     pyh9f0ad1d_0          26 KB  conda-forge\n",
+      "    libgit2-1.1.0              |       h0b03e73_0         693 KB  conda-forge\n",
+      "    libssh2-1.9.0              |       ha56f1ee_6         226 KB  conda-forge\n",
+      "    mailchecker-4.0.7          |     pyhd8ed1ab_0         206 KB  conda-forge\n",
+      "    nanotime-0.5.2             |             py_0           6 KB  conda-forge\n",
+      "    networkx-2.5               |             py_0         1.2 MB  conda-forge\n",
+      "    pathlib2-2.3.5             |   py39hf3d152e_3          35 KB  conda-forge\n",
+      "    pathspec-0.8.1             |     pyhd3deb0d_0          29 KB  conda-forge\n",
+      "    pcre2-10.35                |       h032f7d1_2         693 KB  conda-forge\n",
+      "    phonenumbers-8.10.14       |             py_0         1.5 MB  conda-forge\n",
+      "    ply-3.11                   |             py_1          44 KB  conda-forge\n",
+      "    pyasn1-0.4.8               |             py_0          53 KB  conda-forge\n",
+      "    pydot-1.2.4                |             py_0          20 KB  conda-forge\n",
+      "    pygit2-1.5.0               |   py39h3811e60_0         213 KB  conda-forge\n",
+      "    pygtrie-2.3.2              |     pyh8c360ce_0          24 KB  conda-forge\n",
+      "    python-benedict-0.24.0     |     pyhd8ed1ab_0          30 KB  conda-forge\n",
+      "    python-fsutil-0.5.0        |     pyhd8ed1ab_0          13 KB  conda-forge\n",
+      "    python-slugify-5.0.2       |     pyhd8ed1ab_0          12 KB  conda-forge\n",
+      "    rich-10.2.2                |   py39hf3d152e_0         337 KB  conda-forge\n",
+      "    ruamel.yaml-0.17.4         |   py39h3811e60_0         160 KB  conda-forge\n",
+      "    ruamel.yaml.clib-0.2.2     |   py39h3811e60_2         173 KB  conda-forge\n",
+      "    shortuuid-1.0.1            |   py39hf3d152e_4          15 KB  conda-forge\n",
+      "    shtab-1.3.6                |     pyhd8ed1ab_0          15 KB  conda-forge\n",
+      "    text-unidecode-1.3         |             py_0          68 KB  conda-forge\n",
+      "    toml-0.10.2                |     pyhd8ed1ab_0          18 KB  conda-forge\n",
+      "    unidecode-1.2.0            |     pyhd8ed1ab_0         155 KB  conda-forge\n",
+      "    voluptuous-0.12.1          |     pyhd3deb0d_0          28 KB  conda-forge\n",
+      "    zc.lockfile-2.0            |             py_0          11 KB  conda-forge\n",
+      "    ------------------------------------------------------------\n",
+      "                                           Total:         8.8 MB\n",
+      "\n",
+      "The following NEW packages will be INSTALLED:\n",
+      "\n",
+      "  _openmp_mutex      conda-forge/linux-64::_openmp_mutex-4.5-1_gnu\n",
+      "  appdirs            conda-forge/noarch::appdirs-1.4.4-pyh9f0ad1d_0\n",
+      "  atpublic           conda-forge/noarch::atpublic-1.0-py_0\n",
+      "  bzip2              conda-forge/linux-64::bzip2-1.0.8-h7f98852_4\n",
+      "  cached-property    conda-forge/noarch::cached-property-1.5.2-hd8ed1ab_1\n",
+      "  cached_property    conda-forge/noarch::cached_property-1.5.2-pyha770c72_1\n",
+      "  colorama           conda-forge/noarch::colorama-0.4.4-pyh9f0ad1d_0\n",
+      "  commonmark         conda-forge/noarch::commonmark-0.9.1-py_0\n",
+      "  configobj          conda-forge/noarch::configobj-5.0.6-py_0\n",
+      "  dictdiffer         conda-forge/noarch::dictdiffer-0.8.1-pyhd8ed1ab_0\n",
+      "  diskcache          conda-forge/noarch::diskcache-5.2.1-pyh44b312d_0\n",
+      "  distro             conda-forge/noarch::distro-1.5.0-pyh9f0ad1d_0\n",
+      "  dpath              conda-forge/linux-64::dpath-2.0.1-py39hf3d152e_0\n",
+      "  dulwich            conda-forge/linux-64::dulwich-0.20.23-py39h3811e60_0\n",
+      "  dvc                conda-forge/linux-64::dvc-2.1.0-py39hf3d152e_0\n",
+      "  flatten-dict       conda-forge/noarch::flatten-dict-0.3.0-pyh9f0ad1d_0\n",
+      "  flufl.lock         conda-forge/noarch::flufl.lock-3.2-py_0\n",
+      "  fsspec             conda-forge/noarch::fsspec-0.9.0-pyhd8ed1ab_2\n",
+      "  ftfy               conda-forge/noarch::ftfy-5.5.1-py_0\n",
+      "  funcy              conda-forge/noarch::funcy-1.16-pyhd8ed1ab_0\n",
+      "  future             conda-forge/linux-64::future-0.18.2-py39hf3d152e_3\n",
+      "  gitdb              conda-forge/noarch::gitdb-4.0.7-pyhd8ed1ab_0\n",
+      "  gitpython          conda-forge/noarch::gitpython-3.1.17-pyhd8ed1ab_0\n",
+      "  grandalf           conda-forge/noarch::grandalf-0.6-py_0\n",
+      "  jsonpath-ng        conda-forge/noarch::jsonpath-ng-1.5.2-pyh9f0ad1d_0\n",
+      "  libgit2            conda-forge/linux-64::libgit2-1.1.0-h0b03e73_0\n",
+      "  libgomp            conda-forge/linux-64::libgomp-9.3.0-h2828fa1_19\n",
+      "  libssh2            conda-forge/linux-64::libssh2-1.9.0-ha56f1ee_6\n",
+      "  mailchecker        conda-forge/noarch::mailchecker-4.0.7-pyhd8ed1ab_0\n",
+      "  nanotime           conda-forge/noarch::nanotime-0.5.2-py_0\n",
+      "  networkx           conda-forge/noarch::networkx-2.5-py_0\n",
+      "  pathlib2           conda-forge/linux-64::pathlib2-2.3.5-py39hf3d152e_3\n",
+      "  pathspec           conda-forge/noarch::pathspec-0.8.1-pyhd3deb0d_0\n",
+      "  pcre2              conda-forge/linux-64::pcre2-10.35-h032f7d1_2\n",
+      "  phonenumbers       conda-forge/noarch::phonenumbers-8.10.14-py_0\n",
+      "  pip                conda-forge/noarch::pip-21.1.2-pyhd8ed1ab_0\n",
+      "  ply                conda-forge/noarch::ply-3.11-py_1\n",
+      "  pyasn1             conda-forge/noarch::pyasn1-0.4.8-py_0\n",
+      "  pydot              conda-forge/noarch::pydot-1.2.4-py_0\n",
+      "  pygit2             conda-forge/linux-64::pygit2-1.5.0-py39h3811e60_0\n",
+      "  pygtrie            conda-forge/noarch::pygtrie-2.3.2-pyh8c360ce_0\n",
+      "  python-benedict    conda-forge/noarch::python-benedict-0.24.0-pyhd8ed1ab_0\n",
+      "  python-fsutil      conda-forge/noarch::python-fsutil-0.5.0-pyhd8ed1ab_0\n",
+      "  python-slugify     conda-forge/noarch::python-slugify-5.0.2-pyhd8ed1ab_0\n",
+      "  rich               conda-forge/linux-64::rich-10.2.2-py39hf3d152e_0\n",
+      "  ruamel.yaml        conda-forge/linux-64::ruamel.yaml-0.17.4-py39h3811e60_0\n",
+      "  ruamel.yaml.clib   conda-forge/linux-64::ruamel.yaml.clib-0.2.2-py39h3811e60_2\n",
+      "  shortuuid          conda-forge/linux-64::shortuuid-1.0.1-py39hf3d152e_4\n",
+      "  shtab              conda-forge/noarch::shtab-1.3.6-pyhd8ed1ab_0\n",
+      "  smmap              conda-forge/noarch::smmap-3.0.5-pyh44b312d_0\n",
+      "  tabulate           conda-forge/noarch::tabulate-0.8.9-pyhd8ed1ab_0\n",
+      "  text-unidecode     conda-forge/noarch::text-unidecode-1.3-py_0\n",
+      "  toml               conda-forge/noarch::toml-0.10.2-pyhd8ed1ab_0\n",
+      "  typing_extensions  conda-forge/noarch::typing_extensions-3.7.4.3-py_0\n",
+      "  unidecode          conda-forge/noarch::unidecode-1.2.0-pyhd8ed1ab_0\n",
+      "  voluptuous         conda-forge/noarch::voluptuous-0.12.1-pyhd3deb0d_0\n",
+      "  wheel              conda-forge/noarch::wheel-0.36.2-pyhd3deb0d_0\n",
+      "  zc.lockfile        conda-forge/noarch::zc.lockfile-2.0-py_0\n",
+      "\n",
+      "The following packages will be UPDATED:\n",
+      "\n",
+      "  certifi            pkgs/main::certifi-2020.12.5-py39h06a~ --> conda-forge::certifi-2020.12.5-py39hf3d152e_1\n",
+      "  libgcc-ng           pkgs/main::libgcc-ng-9.1.0-hdf63c60_0 --> conda-forge::libgcc-ng-9.3.0-h2828fa1_19\n",
+      "\n",
+      "The following packages will be SUPERSEDED by a higher-priority channel:\n",
+      "\n",
+      "  _libgcc_mutex           pkgs/main::_libgcc_mutex-0.1-main --> conda-forge::_libgcc_mutex-0.1-conda_forge\n",
+      "  ca-certificates    pkgs/main::ca-certificates-2021.4.13-~ --> conda-forge::ca-certificates-2020.12.5-ha878542_0\n",
+      "  conda              pkgs/main::conda-4.10.1-py39h06a4308_1 --> conda-forge::conda-4.10.1-py39hf3d152e_0\n",
+      "  openssl              pkgs/main::openssl-1.1.1k-h27cfd23_0 --> conda-forge::openssl-1.1.1k-h7f98852_0\n",
+      "\n",
+      "\n",
+      "\n",
+      "Downloading and Extracting Packages\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "diskcache-5.2.1      | 36 KB     | ##################################### | 100% \n",
+      "pathspec-0.8.1       | 29 KB     | ##################################### | 100% \n",
+      "cached-property-1.5. | 4 KB      | ##################################### | 100% \n",
+      "networkx-2.5         | 1.2 MB    | ##################################### | 100% \n",
+      "commonmark-0.9.1     | 46 KB     | ##################################### | 100% \n",
+      "configobj-5.0.6      | 31 KB     | ##################################### | 100% \n",
+      "python-fsutil-0.5.0  | 13 KB     | ##################################### | 100% \n",
+      "fsspec-0.9.0         | 75 KB     | ##################################### | 100% \n",
+      "dulwich-0.20.23      | 721 KB    | ##################################### | 100% \n",
+      "funcy-1.16           | 30 KB     | ##################################### | 100% \n",
+      "bzip2-1.0.8          | 484 KB    | ##################################### | 100% \n",
+      "ply-3.11             | 44 KB     | ##################################### | 100% \n",
+      "libgit2-1.1.0        | 693 KB    | ##################################### | 100% \n",
+      "ftfy-5.5.1           | 47 KB     | ##################################### | 100% \n",
+      "nanotime-0.5.2       | 6 KB      | ##################################### | 100% \n",
+      "pyasn1-0.4.8         | 53 KB     | ##################################### | 100% \n",
+      "unidecode-1.2.0      | 155 KB    | ##################################### | 100% \n",
+      "dvc-2.1.0            | 551 KB    | ##################################### | 100% \n",
+      "pydot-1.2.4          | 20 KB     | ##################################### | 100% \n",
+      "zc.lockfile-2.0      | 11 KB     | ##################################### | 100% \n",
+      "dpath-2.0.1          | 23 KB     | ##################################### | 100% \n",
+      "pcre2-10.35          | 693 KB    | ##################################### | 100% \n",
+      "ruamel.yaml-0.17.4   | 160 KB    | ##################################### | 100% \n",
+      "flatten-dict-0.3.0   | 11 KB     | ##################################### | 100% \n",
+      "python-slugify-5.0.2 | 12 KB     | ##################################### | 100% \n",
+      "shortuuid-1.0.1      | 15 KB     | ##################################### | 100% \n",
+      "text-unidecode-1.3   | 68 KB     | ##################################### | 100% \n",
+      "cached_property-1.5. | 11 KB     | ##################################### | 100% \n",
+      "colorama-0.4.4       | 18 KB     | ##################################### | 100% \n",
+      "flufl.lock-3.2       | 19 KB     | ##################################### | 100% \n",
+      "libssh2-1.9.0        | 226 KB    | ##################################### | 100% \n",
+      "python-benedict-0.24 | 30 KB     | ##################################### | 100% \n",
+      "distro-1.5.0         | 20 KB     | ##################################### | 100% \n",
+      "grandalf-0.6         | 42 KB     | ##################################### | 100% \n",
+      "future-0.18.2        | 718 KB    | ##################################### | 100% \n",
+      "ruamel.yaml.clib-0.2 | 173 KB    | ##################################### | 100% \n",
+      "rich-10.2.2          | 337 KB    | ##################################### | 100% \n",
+      "shtab-1.3.6          | 15 KB     | ##################################### | 100% \n",
+      "pygtrie-2.3.2        | 24 KB     | ##################################### | 100% \n",
+      "mailchecker-4.0.7    | 206 KB    | ##################################### | 100% \n",
+      "voluptuous-0.12.1    | 28 KB     | ##################################### | 100% \n",
+      "atpublic-1.0         | 7 KB      | ##################################### | 100% \n",
+      "phonenumbers-8.10.14 | 1.5 MB    | ##################################### | 100% \n",
+      "pathlib2-2.3.5       | 35 KB     | ##################################### | 100% \n",
+      "pygit2-1.5.0         | 213 KB    | ##################################### | 100% \n",
+      "dictdiffer-0.8.1     | 16 KB     | ##################################### | 100% \n",
+      "toml-0.10.2          | 18 KB     | ##################################### | 100% \n",
+      "jsonpath-ng-1.5.2    | 26 KB     | ##################################### | 100% \n",
+      "Preparing transaction: done\n",
+      "Verifying transaction: done\n",
+      "Executing transaction: done\n",
+      "\n",
+      "Note: you may need to restart the kernel to use updated packages.\n"
+     ]
+    }
+   ],
+   "source": [
+    "conda install dvc"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "20975d62",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Stwórzmy katalog, w którym będziemy przechowywać nasz projekt:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "aae59ec2",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "!mkdir -p IUM_10/sample-ml-project"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "1e522a93",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "/home/tomek/AITech/repo/aitech-ium-private/IUM_10/sample-ml-project\n"
+     ]
+    }
+   ],
+   "source": [
+    "#Jupyter notebook magic https://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-cd\n",
+    "%cd \"IUM_10/sample-ml-project\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "199c0d92",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Inicjalizujemy puste repozytorium Git (możemy też pominąć ten krok i działać w istniejącym już repozytorium)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "c13c525b",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Initialized empty Git repository in /home/tomek/AITech/repo/aitech-ium-private/IUM_10/sample-ml-project/.git/\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git init"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c7155369",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Teraz inicjalizujemy repozytorium DVC:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "44f28226",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Initialized DVC repository.\n",
+      "\n",
+      "You can now commit the changes to git.\n",
+      "\n",
+      "\u001b[31m+---------------------------------------------------------------------+\n",
+      "\u001b[0m\u001b[31m|\u001b[0m                                                                     \u001b[31m|\u001b[0m\n",
+      "\u001b[31m|\u001b[0m        DVC has enabled anonymous aggregate usage analytics.         \u001b[31m|\u001b[0m\n",
+      "\u001b[31m|\u001b[0m     Read the analytics documentation (and how to opt-out) here:     \u001b[31m|\u001b[0m\n",
+      "\u001b[31m|\u001b[0m             <\u001b[36mhttps://dvc.org/doc/user-guide/analytics\u001b[39m>              \u001b[31m|\u001b[0m\n",
+      "\u001b[31m|\u001b[0m                                                                     \u001b[31m|\u001b[0m\n",
+      "\u001b[31m+---------------------------------------------------------------------+\n",
+      "\u001b[0m\n",
+      "\u001b[33mWhat's next?\u001b[39m\n",
+      "\u001b[33m------------\u001b[39m\n",
+      "- Check out the documentation: <\u001b[36mhttps://dvc.org/doc\u001b[39m>\n",
+      "- Get help and share ideas: <\u001b[36mhttps://dvc.org/chat\u001b[39m>\n",
+      "- Star us on GitHub: <\u001b[36mhttps://github.com/iterative/dvc\u001b[39m>\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc init"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "00bc72ed",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Zobaczmy jakie pliki dodał (również do repozytorium git) DVC.\n",
+    "Ich opis znajdziemy tutaj: https://dvc.org/doc/user-guide/project-structure/internal-files"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "d1aefe16",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\r\n",
+      "\r\n",
+      "No commits yet\r\n",
+      "\r\n",
+      "Changes to be committed:\r\n",
+      "  (use \"git rm --cached <file>...\" to unstage)\r\n",
+      "\t\u001b[32mnew file:   .dvc/.gitignore\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/config\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/plots/confusion.json\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/plots/confusion_normalized.json\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/plots/default.json\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/plots/linear.json\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/plots/scatter.json\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvc/plots/smooth.json\u001b[m\r\n",
+      "\t\u001b[32mnew file:   .dvcignore\u001b[m\r\n",
+      "\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git status"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "72e0a272",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Możemy teraz zacommitować zmiany w git:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "59780e99",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\r\n",
+      "nothing to commit, working tree clean\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git commit -m \"Initial commit\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "dd8e529b",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## Śledzenie plików za pomocą DVC\n",
+    " - dużymi plikami, takimi jak plikami z danymi wejściowymi czy plikami modeli, trudno zarządza się za pomocą gita, ze względu na problemy z:\n",
+    "   - wydajnością\n",
+    "   - przestrzenią w repozytorium\n",
+    " - Git posiada rozszerzenie [lfs(Large File Storage)](https://git-lfs.github.com/), które stanowi pewne rozwiązanie tego problemu. Same pliki przechowywane są na specjalnym zdalnym serwerze, w repozytorium przechowywane są jedynie odnośniki do tych plików i pewne metadane\n",
+    " - DVC proponuje podobne podejście, ale:\n",
+    "   - pliki mogą być przechowywane na niemal dowolnym serwerze, również lokalnie\n",
+    "   - brak limitu wielkości plików (w Git-LFS najczęściej limit 2GB)\n",
+    "   - DVC zapewnia dodatkowe narzędzie umożliwiające śledzenie plików i ich powiązań z  wynikami eksperymentów\n",
+    "   - więcej, patrz [tutaj](https://dvc.org/doc/user-guide/related-technologies)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a8861abe",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Przygotujmy przykładowe dane, pobierając je z Kaggle:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "f05ece1b",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Downloading iris.zip to /home/tomek/AITech/repo/aitech-ium-private/IUM_10/sample-ml-project\n",
+      "  0%|                                               | 0.00/3.60k [00:00<?, ?B/s]\n",
+      "100%|██████████████████████████████████████| 3.60k/3.60k [00:00<00:00, 2.63MB/s]\n",
+      "Archive:  iris.zip\n",
+      "  inflating: Iris.csv                \n",
+      "  inflating: database.sqlite         \n"
+     ]
+    }
+   ],
+   "source": [
+    "!kaggle datasets download -d uciml/iris\n",
+    "!unzip -o iris.zip\n",
+    "!rm database.sqlite iris.zip\n",
+    "!mkdir -p data\n",
+    "!mv Iris.csv data/"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "adb9a522",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Teraz dodamy plik(i) z danymi do DVC:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "74d182c7",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Adding...                                                                       \n",
+      "!\u001b[A\n",
+      "  0%|          |.E8dZEGBYoRayYsJLdesNS4.tmp    0.00/5.11k [00:00<?,       ?it/s]\u001b[A\n",
+      "100% Add|██████████████████████████████████████████████|1/1 [00:04,  4.71s/file]\u001b[A\n",
+      "\n",
+      "To track the changes with git, run:\n",
+      "\n",
+      "\tgit add data/Iris.csv.dvc data/.gitignore\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc add data/Iris.csv"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "72c6b5d0",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    " - DVC utworzył plik `data/Iris.csv.dvc` i dadał oryginalny plik do `.gitignore`\n",
+    " - W repozytorium będzie obecny tylko plik `*.dvc`, zawierający odnośnik do prawdziwego pliku"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "74d54652",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\r\n",
+      "Untracked files:\r\n",
+      "  (use \"git add <file>...\" to include in what will be committed)\r\n",
+      "\t\u001b[31mdata/.gitignore\u001b[m\r\n",
+      "\t\u001b[31mdata/Iris.csv.dvc\u001b[m\r\n",
+      "\t\u001b[31miris.zip\u001b[m\r\n",
+      "\r\n",
+      "nothing added to commit but untracked files present (use \"git add\" to track)\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git status -u"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8589fecf",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Dodajmy pliki `data/Iris.csv.dvc data/.gitignore` do repozytorium git, zgodnie z sugestią DVC:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "id": "460c4a17",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "!git add data/Iris.csv.dvc data/.gitignore"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "80644077",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master cc0821a] Dodano dane IRIS (DVC)\r\n",
+      " 2 files changed, 5 insertions(+)\r\n",
+      " create mode 100644 data/.gitignore\r\n",
+      " create mode 100644 data/Iris.csv.dvc\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git commit -m \"Dodano dane IRIS (DVC)\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "03899863",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Plik `*.dvc` zawiera m.in. hash pliku. Więcej o plikach `*.dvc`: [link](https://dvc.org/doc/user-guide/project-structure/dvc-files)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8cb2ba7c",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "# %load data/Iris.csv.dvc\n",
+    "outs:\n",
+    "- md5: 717820ef0af287ff346c5cabfb4c612c\n",
+    "  size: 5107\n",
+    "  path: Iris.csv\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "0b421d45",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Oryginalny plik `Iris.csv` został przeniesiony do katalogu ./dvc/cache/{wartość hash pliku) i podlinkowany z powrotem do oryginalnej lokalizacji. Sposób tworzenia linków może być [różny w zależności od systemu plików](https://dvc.org/doc/user-guide/large-dataset-optimization)."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 27,
+   "id": "1d471f3a",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "total 8\r\n",
+      "-r--r--r-- 1 tomek tomek 5107 wrz 19  2019 7820ef0af287ff346c5cabfb4c612c\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!ls -l .dvc/cache/71"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "901e8e90",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## dvc remote\n",
+    " - żeby wysłać właściwe pliki śledzone przez DVC do zdalnej lokalizacji (z której będą mogłby być pobrane np. przez system CI albo innych użytkowników) musimy mieć skonfigurowaną taką lokazliację\n",
+    " - służy do tego polecenie [`dvc remote add`](https://dvc.org/doc/command-reference/remote/add)\n",
+    " - użyjemy lokalnego \"remote\". Tutaj będzie to po prostu utworzony wcześniej katalog `/dvcstore`. Taki katalog istnieje też na naszym Jenkinsie, oczywiście należy go podmontować w Dockerze\n",
+    " - w realnych zastosowaniach podalibyśmy tutaj ścieżkę do jakiegoś zasobu dostępnego przez inernet jak np. serwer SFTP, ścieżka do AWS S3 itp."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 28,
+   "id": "731f6ea4",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Setting 'my_local_remote' as a default remote.\r\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc remote add -d my_local_remote /dvcstore"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 39,
+   "id": "9c3deeaf",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\r\n",
+      "Changes not staged for commit:\r\n",
+      "  (use \"git add <file>...\" to update what will be committed)\r\n",
+      "  (use \"git restore <file>...\" to discard changes in working directory)\r\n",
+      "\t\u001b[31mmodified:   .dvc/config\u001b[m\r\n",
+      "\r\n",
+      "no changes added to commit (use \"git add\" and/or \"git commit -a\")\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git status"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 41,
+   "id": "899eac7d",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master 3ff62b6] Added DVC remote\r\n",
+      " 1 file changed, 4 insertions(+)\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git add .dvc/config\n",
+    "!git commit -m \"Added DVC remote\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8c556c96",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## dvc push\n",
+    "Kiedy mamy już skonfigurowany \"remote\" możemy wypchnąć do niego pliki korzystając z polecenia `dvc push`:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 29,
+   "id": "8ecf3091",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "  0% Uploading|                                      |0/1 [00:00<?,     ?file/s]\n",
+      "!\u001b[A\n",
+      "  0%|          |data/Iris.csv                  0.00/5.11k [00:00<?,       ?it/s]\u001b[A\n",
+      "1 file pushed                                                                   \u001b[A\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc push"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 33,
+   "id": "8a355575",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\u001b[34;42m/dvcstore\u001b[00m\r\n",
+      "└── \u001b[01;34m71\u001b[00m\r\n",
+      "    └── 7820ef0af287ff346c5cabfb4c612c\r\n",
+      "\r\n",
+      "1 directory, 1 file\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!tree /dvcstore"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "af59ecb3",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## dvc pull\n",
+    "Żeby pobrać dane z DVC (np. w innej lokalizacji, przez innego użytkownika), musimy:\n",
+    " - sklonować repozytorium git (żeby m.in. pobrać pliki `*.dvc`\n",
+    " - wykonać `dvc pull`"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9fa914a7",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "Dodawanie nowych plików i modyfikacja istniejących wygląda tak podobnie jak przy zwykłych plikach śledzonych przez  git, tylko zamiast `git` używamy polecenia `dvc` a dodatkowo pamiętamy o zarządzaniu plikami `*.dvc` za pomocą gita:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 37,
+   "id": "dde39796",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "!head -n -1 data/Iris.csv | sponge data/Iris.csv"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 42,
+   "id": "7f14ec60",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\r\n",
+      "nothing to commit, working tree clean\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git status"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 43,
+   "id": "8a841039",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "data/Iris.csv.dvc:                                                    core\u001b[39m>\n",
+      "\tchanged outs:\n",
+      "\t\tmodified:           data/Iris.csv\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc status"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 44,
+   "id": "bf6c1067",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Adding...                                                                       \n",
+      "!\u001b[A\n",
+      "  0%|          |.TatTHknArFHCT9iDCtxHzh.tmp    0.00/5.07k [00:00<?,       ?it/s]\u001b[A\n",
+      "100% Add|██████████████████████████████████████████████|1/1 [00:00,  2.68file/s]\u001b[A\n",
+      "\n",
+      "To track the changes with git, run:\n",
+      "\n",
+      "\tgit add data/Iris.csv.dvc\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc add data/Iris.csv"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 46,
+   "id": "4a4865c9",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master e38c244] Removed last line from Iris dataset\r\n",
+      " 1 file changed, 2 insertions(+), 2 deletions(-)\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git add data/Iris.csv.dvc\n",
+    "!git commit -m \"Removed last line from Iris dataset\"\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d710977c",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "### dvc checkout\n",
+    "  - Polecenia `dvc checkout` używamy razem z `git checkout`, żeby zmienić branch, na którym pracujemy.\n",
+    "  - DVC podmieni wersje plików śledzonych przez siebie na pochodzące z innego brancha (o ile pliki te się różnią i różnią się pliki `*.dvc` w odpowiednich branchach\n",
+    "  - zmiana brancha przez git powoduje (ewentualną) zmianę plików `*.dvc` a `dvc checkout` kopiuje/linkuje pliki z katalogu `.dvc/cache` o wartościach hash odpowiadających tym z plików `*.dvc`"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5897e8eb",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## Wymiana danych między projektami\n",
+    " - za pomocą poleceń `dvc import` i `dvc update` możemy dodać i później aktualizować pliki śledzone przez DVC w innym repozytorium"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 48,
+   "id": "9b018146",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Importing 'get-started/data.xml (https://github.com/iterative/dataset-registry)' -> 'data/data.xml'\n",
+      "  0% Downloading|                                    |0/1 [00:00<?,     ?file/s]\n",
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+     ]
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+      " 92%|█████████▏|get-started/data.xml      33.2M/36.1M [00:17<00:01,    2.86MB/s]\u001b[A\n",
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+      " 94%|█████████▎|get-started/data.xml      33.8M/36.1M [00:17<00:00,    2.87MB/s]\u001b[A\n",
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+      " 95%|█████████▌|get-started/data.xml      34.4M/36.1M [00:17<00:00,    2.87MB/s]\u001b[A\n",
+      " 96%|█████████▌|get-started/data.xml      34.8M/36.1M [00:17<00:00,    2.87MB/s]\u001b[A\n",
+      " 97%|█████████▋|get-started/data.xml      35.1M/36.1M [00:17<00:00,    2.87MB/s]\u001b[A\n",
+      " 98%|█████████▊|get-started/data.xml      35.4M/36.1M [00:18<00:00,    2.87MB/s]\u001b[A\n",
+      " 99%|█████████▉|get-started/data.xml      35.7M/36.1M [00:18<00:00,    2.88MB/s]\u001b[A\n",
+      "100%|█████████▉|get-started/data.xml      36.0M/36.1M [00:18<00:00,    2.87MB/s]\u001b[A\n",
+      "                                                                                \u001b[A\n",
+      "To track the changes with git, run:\n",
+      "\n",
+      "\tgit add data/.gitignore data/data.xml.dvc\n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc import https://github.com/iterative/dataset-registry \\\n",
+    "             get-started/data.xml -o data/data.xml"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 49,
+   "id": "be2c1a37",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Data and pipelines are up to date.                                              \n",
+      "\u001b[0m"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc status"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 50,
+   "id": "3306c5b7",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "total 37020\r\n",
+      "-rw-rw-r-- 1 tomek tomek 37891850 maj 31 11:10 data.xml\r\n",
+      "-rw-rw-r-- 1 tomek tomek      284 maj 31 11:10 data.xml.dvc\r\n",
+      "-rw-rw-r-- 1 tomek tomek     5072 maj 31 11:01 Iris.csv\r\n",
+      "-rw-rw-r-- 1 tomek tomek       76 maj 31 11:01 Iris.csv.dvc\r\n"
+     ]
+    }
+   ],
+   "source": [
+    "ls -l data"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "b73c56ea",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "# %load data/data.xml.dvc\n",
+    "md5: a7cd139231cc35ed63541ce3829b96db\n",
+    "frozen: true\n",
+    "deps:\n",
+    "- path: get-started/data.xml\n",
+    "  repo:\n",
+    "    url: https://github.com/iterative/dataset-registry\n",
+    "    rev_lock: ba014f40e29670421a67cb1c47543f402348aa13\n",
+    "outs:\n",
+    "- md5: a304afb96060aad90176268345e10355\n",
+    "  size: 37891850\n",
+    "  path: data.xml\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "db1063ac",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## DVC pipelines\n",
+    " - wprowadzenie: https://youtu.be/71IGzyH95UY\n",
+    " - Getting started: https://dvc.org/doc/start/data-pipelines\n",
+    " - dvc pipelines pozwala nam zbudować (za pomocą polecenie `dvc run`) lub zdefiniować (edytując plik `dvc.yaml`) graf zależności między krokami wykonywanymi w naszym projekcie (takimi jak \"przygotowanie danych\", \"trenowanie\", \"ewaluacja\")\n",
+    "  - tak zdefiniowany pipeline można potem uruchomić za pomocą polecenia `dvc reproduce`"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "e2939867",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
+   "source": [
+    "## Zadania [15pkt]\n",
+    "1. Zainicjalizuj repozytorium DVC wewnątrz Twojego repozytorium z projektem [1pkt]\n",
+    "2. Dodaj plik(i) z danymi w Twoim projekcie do DVC [1pkt]\n",
+    "3. Skonfiguruj remote (dane do konfiguracji będą podane niebawem) [1pkt]\n",
+    "4. Stwórz/zdefiniuj i dodaj do repozytorium plik `dvc.yaml` opisujący kroki wykonywane w Twoim projekcie. Wydziel przynajmniej 2 kroki (np. przygotowanie danych/trenowanie) powiązane ze sobą za pomocą zależności (skorzystaj z materiałów \"Getting started\", link powyżej) [6pkt]\n",
+    "5. Stwórz projekt na Jenkinsie (`s1233456-dvc`), w którym sklonujesz repozytorium, ściągniesz pliki dvc (za pomocą `dvc pull`) i uruchomisz pipeline (za pomocą `dvc reproduce`) [6pkt]"
+   ]
+  }
+ ],
+ "metadata": {
+  "celltoolbar": "Slideshow",
+  "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
+}
diff --git a/IUM_12.Praca.ipynb b/IUM_12.Praca.ipynb
new file mode 100644
index 0000000..ea4bbca
--- /dev/null
+++ b/IUM_12.Praca.ipynb
@@ -0,0 +1,79 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "85b20432",
+   "metadata": {},
+   "source": [
+    "# Przegląd rynku pracy"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "69587a1e",
+   "metadata": {},
+   "source": [
+    "## Zadanie\n",
+    "\n",
+    "1. Znajdź minimum 6, interesujących dla Ciebie, ogłoszeń o pracę\n",
+    "  - na razie nie zważaj na wymagania\n",
+    "  - szukaj pracy, którą będziesz mógł wykonywać np. po ukończeniu studiów\n",
+    "  - do tego czasu możesz jeszcze sporo się nauczyć\n",
+    "  - nie przejmuj się lokalizacją geograficzną - żyjemy w czasie pracy zdalnej\n",
+    "\n",
+    "2. Policz wymagania (zarówno te obowiązkowe jak i mile widziane) z tych ogłoszeń, tak, żeby stworzyć ich listę frekwencyjną, np:\n",
+    "|wymaganie           |liczba ogłoszeń|\n",
+    "|--------------------|---------------|\n",
+    "|analityczne myślenie|     6         |\n",
+    "|git                 |     5         |\n",
+    "|Python              |     3         |\n",
+    "|Haskell             |     1         |\n",
+    "\n",
+    "3. Przygotuj 3-4 slajdy prezentacji, która potrwa około 10 minut. Przedstaw w niej:\n",
+    "  - listę ogłoszeń, które znalazłeś (stanowisko, firma)\n",
+    "  - statystyki dotyczące wymagań (tabelka + wykres)\n",
+    "  - wybierz jedno wymaganie. Najlepiej mniej znane i oczywiste. Jeśli jest to :\n",
+    "    - technologia (biblioteka itp) - opowiedz o niej krótko (do czego służy, jakie ma możliwości itp)\n",
+    "    - umiejętność, dziedzina wiedzy - opowiedz o niej krótko + przedstaw źródło, z którego można się jej nauczyć (książka, kurs, artykuł)\n",
+    "    \n",
+    "   Jeśli znasz jakieś ciekawe technologie/umiejętności, które chciałbyś przedstawić grupie, możesz odwrócić kolejność: poszukaj ogłoszeń, które o nich wspominają.\n",
+    "    \n",
+    "Jedna osoba z grupy ma zadanie specjalne:\n",
+    " - nie szuka ogłoszeń\n",
+    " - zbiera statystyki od reszty grupy i agreguje je (eliminując duplikaty)\n",
+    " - przygotowuje 2 slajdy przedstawiające statystyki:\n",
+    "   - wymagań (tak jak każdy, ale dla całej grupy)\n",
+    "   - firm będących aautorami ogłoszeń"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1fb3795f",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "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
+}