install python3 - use dockerfile

Dockerfile

@@ -3,6 +3,8 @@ FROM ubuntu:latest
 RUN apt update -y && apt install -y make
 RUN apt install -y git
 RUN apt install -y gcc
+RUN apt install -y python3
+RUN apt install -y python-pandas
 RUN gcc --version
 RUN apt install -y build-essential
 RUN git clone https://github.com/usnistgov/SCTK.git

Jenkinsfile

@@ -30,6 +30,7 @@ pipeline {
 
         stage('Zadanie 3 - Metryki') {
             steps {
+                sh 'python3 --version'
                 sh 'python3 ./zadanie3/script.py'
             }
         }