pin python package version to whatever is in ubuntu 20.04
-ansicolors
+ansicolors==1.1.8
docker==5.0.2
-h5py
-matplotlib
-numpy
+h5py==2.10.0
+matplotlib==3.1.2
+numpy==1.17.4
pyyaml==5.4
psutil==5.6.6
-scipy
-scikit-learn
+scipy==1.3.3
+scikit-learn==0.22.2
jinja2==2.10
