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Viewing changes to django/utils/checksums.py

  • Committer: Package Import Robot
  • Author(s): Luke Faraone, Jakub Wilk, Luke Faraone
  • Date: 2013-05-09 15:10:47 UTC
  • mfrom: (1.1.21) (4.4.27 sid)
  • Revision ID: package-import@ubuntu.com-20130509151047-aqv8d71oj9wvcv8c
Tags: 1.5.1-2
[ Jakub Wilk ]
* Use canonical URIs for Vcs-* fields.

[ Luke Faraone ]
* Upload to unstable.

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django/utils/checksums.py
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__all__ = ['luhn',]
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from django.utils import six
 
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LUHN_ODD_LOOKUP = (0, 2, 4, 6, 8, 1, 3, 5, 7, 9) # sum_of_digits(index * 2)
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def luhn(candidate):
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    algorithm (used in validation of, for example, credit cards).
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    Both numeric and string candidates are accepted.
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    """
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    if not isinstance(candidate, basestring):
 
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    if not isinstance(candidate, six.string_types):
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        candidate = str(candidate)
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    try:
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        evens = sum([int(c) for c in candidate[-1::-2]])