Created
July 3, 2017 16:17
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python 3 filter()
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def sanitize_username(self, s): | |
"""Takes a string and returns it with only allowed characters.""" | |
# http://stackoverflow.com/questions/12756156/with-python-what-is-the-most-efficient-way-to-remove-all-char-from-string-excep#comment17236154_12756156 | |
# a-z, A-Z, 0-9, _, -, . | |
keep_set = set(string.ascii_letters + string.digits + '_-.') | |
return filter(keep_set.__contains__, s) | |
sanitize_username('chrickso') returns <filter object at 0x10c53aa58> | |
def sanitize_username(self, s): | |
"""Takes a string and returns it with only allowed characters.""" | |
# http://stackoverflow.com/questions/12756156/with-python-what-is-the-most-efficient-way-to-remove-all-char-from-string-excep#comment17236154_12756156 | |
# a-z, A-Z, 0-9, _, -, . | |
keep_set = set(string.ascii_letters + string.digits + '_-.') | |
return list(filter(keep_set.__contains__, s)) | |
sanitize_username('chrickso') returns ['c', 'h', 'r', 'i', 'c', 'k', 's', 'o'] | |
how can i get it to return 'chrickso' ? |
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