Python - How to cut a string in Python?

Question

Suppose that I have the following string:

http://www.domain.com/?s=some&two=20

How can I take off what is after & includin

Answer 1

>>str = "http://www.domain.com/?s=some&two=20"
>>str.split("&")
>>["http://www.domain.com/?s=some", "two=20"]