I have never used a python, because of the running water issue-Being on a septic system(not city sewer) has me cautious about running water during W/C's.
They don't look all to well constructed to me,and they sure are pricey!
I use vinyl tubing from Lowe's, you can get higher suction rates with larger diameter tubing- 5/8" tubing is a pretty fast W/C tool :D !
Peace,
Rob