Help me to solve it in pyton

Question

I think that with a probability of 50%, this code should print "winner = 1", and with a chance of 50%, it should print "winner = 2"; however, it always writes "winner = 1". Can you please explain the reason to me? I really appreciate any help you can provide.
https://code.sololearn.com/cFM90re2Sw30/?ref=app

Answer 1

It's such a mess. Please format your code with correct indentation. And also, explain what the stvpoll module is

Answer 2

https://pypi.org/project/STVPoll/

Answer 3

https://en.m.wikipedia.org/wiki/Single_transferable_vote

Answer 4

Please help