topology rules in python

[Xristos Xristoou]

I have a PostGIS database with shapefiles lines, polygons and points and I want to create a topology rules with python.
Any idea how to do that ?some packages ?

I like some easy way to do that because I am newbie but its OK.

Some topology rules when I want.
shapefile must not have gaps
shapefile must not have overlaps
shapefile must not overlap with shapefile2
invalid geometries