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Anonymous committed db1c737

`is` should not be used on primitive objects, use == instead, correctly.

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Files changed (1)

django/contrib/localflavor/mx/forms.py

             www.sisi.org.mx/jspsi/documentos/2005/seguimiento/06101/0610100162005_065.doc
         """
         chars = u'0123456789ABCDEFGHIJKLMN&OPQRSTUVWXYZ-Ñ'
-        if len(rfc) is 11:
+        if len(rfc) == 11:
             rfc = '-' + rfc
 
         sum_ = sum(i * chars.index(c) for i, c in zip(reversed(xrange(14)), rfc))