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maplambda/gist:3786956

Created September 26, 2012 09:15
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clean string
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gistfile1.py
import string
letters = frozenset("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "0123456789_")
def clean(seq): return filter(lambda x: x in letters, seq)
if __name__ == '__main__':
print clean("test!!!!")
print clean("1__^^^***test!!!!")
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