Float conversion for networkx version fails due to multiple decimals

[rudransh-shrivastava]

Hello!

The float conversion for checking compatible NetworkX version fails and the script crashes if installed version is 2.3.6 for example
the code at fault :

float(nx.__version__) < 2.0

tries to convert it directly without taking multiple decimals into consideration

I can create a pull request fixing this by splitting and joining the string to only consider the first 2 values if that's okay.
I can also try to find other places where there's a similar issue and fix those