Replace part of a string in Python?

Question

I used regular expressions to get a string from a web page and part of the string may contain something I would like to replace with something else. How would it be possible to do this? My code is this, for example:

stuff = "Big and small"
if stuff.find(" and ") == -1:
    # make stuff "Big/small"
else:
    stuff = stuff

Answer 1

>>> stuff = "Big and small"
>>> stuff.replace(" and ","/")
'Big/small'