Comment 1 for bug 1946798

The python2 is missing in bionic.
beside the above statement will work incorrectly, comparing these strings seems not right way to do it. It compares their length
for example 20.04 >= 18.04.5 will give falls and will work on focal as there's python2 package
but 18.04.6 >= 18.04.5 will be true ,but there's not python2 package in bionic, only python package(version2.7.15)