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

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+# __init__.py - collection of Swedish 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 Swedish numbers."""

Shared/lib/python3.4/site-packages/stdnum/se/vat.py

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+# vat.py - functions for handling Swedish VAT numbers
+# coding: utf-8
+#
+# Copyright (C) 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
+
+"""VAT (Moms, Mervärdesskatt, Swedish VAT number).
+
+The Momsregistreringsnummer is used for VAT (Moms, Mervärdesskatt)
+purposes and consists of 12 digits of which the last two should be 01. The
+first 10 digits should have a valid Luhn checksum.
+
+>>> validate('SE 123456789701')
+'123456789701'
+>>> validate('123456789101')  # invalid check digits
+Traceback (most recent call last):
+    ...
+InvalidChecksum: ...
+"""
+
+from stdnum import luhn
+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."""
+    number = clean(number, ' -.').upper().strip()
+    if number.startswith('SE'):
+        number = number[2:]
+    return number
+
+
+def validate(number):
+    """Checks to see if the number provided is a valid VAT number. This
+    checks the length, formatting and check digit."""
+    number = compact(number)
+    if not number.isdigit() or number[-2:] != '01':
+        raise InvalidFormat()
+    if len(number) != 12:
+        raise InvalidLength()
+    luhn.validate(number[:-2])
+    return number
+
+
+def is_valid(number):
+    """Checks to see if the number provided is a valid VAT number. This
+    checks the length, formatting and check digit."""
+    try:
+        return bool(validate(number))
+    except ValidationError:
+        return False