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Shared/lib/python3.4/site-packages/stdnum/br/__init__.py

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+# __init__.py - collection of Brazillian numbers
+# coding: utf-8
+#
+# Copyright (C) 2012 Arthur de Jong
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+"""Collection of Brazillian numbers."""

Shared/lib/python3.4/site-packages/stdnum/br/cpf.py

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+# cpf.py - functions for handling CPF numbers
+# coding: utf-8
+#
+# Copyright (C) 2011, 2012, 2013 Arthur de Jong
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+"""CPF (Cadastro de Pessoas Físicas, Brazillian national identifier).
+
+>>> validate('390.533.447-05')
+'39053344705'
+>>> validate('231.002.999-00')
+Traceback (most recent call last):
+    ...
+InvalidChecksum: ...
+>>> validate('390.533.447=0')  # invalid delimiter
+Traceback (most recent call last):
+    ...
+InvalidFormat: ...
+>>> format('23100299900')
+'231.002.999-00'
+"""
+
+from stdnum.exceptions import *
+from stdnum.util import clean
+
+
+def compact(number):
+    """Convert the number to the minimal representation. This strips the
+    number of any valid separators and removes surrounding whitespace."""
+    return clean(number, ' -.').strip()
+
+
+def _calc_check_digits(number):
+    """Calculate the check digits for the number."""
+    d1 = sum((10 - i) * int(number[i]) for i in range(9))
+    d1 = (11 - d1) % 11 % 10
+    d2 = sum((11 - i) * int(number[i]) for i in range(9)) + 2 * d1
+    d2 = (11 - d2) % 11 % 10
+    return '%d%d' % (d1, d2)
+
+
+def validate(number):
+    """Checks to see if the number provided is a valid CPF. This checks
+    the length and whether the check digit is correct."""
+    number = compact(number)
+    if not number.isdigit() or int(number) <= 0:
+        raise InvalidFormat()
+    if len(number) != 11:
+        raise InvalidLength()
+    if _calc_check_digits(number) != number[-2:]:
+        raise InvalidChecksum()
+    return number
+
+
+def is_valid(number):
+    """Checks to see if the number provided is a valid CPF. This checks
+    the length and whether the check digit is correct."""
+    try:
+        return bool(validate(number))
+    except ValidationError:
+        return False
+
+
+def format(number):
+    """Reformat the passed number to the standard format."""
+    number = compact(number)
+    return number[:3] + '.' + number[3:6] + '.' + number[6:-2] + '-' + number[-2:]