Python dictionary: Remove all the keys that begins with s

for k in dic.keys():
    if k.startswith('s_'):
        del dic[k]

* EDIT * now in python 3 , years after the original answer, keys() returns a view into the dict so you can't change the dict size.

One of the most elegant solutions is a copy of the keys:

for k in list(dic.keys()):
    if k.startswith('s_'):
        del dic[k]

This should do it:

for k in dic.keys():
  if k.startswith('s_'):
    dic.pop(k)

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