Open Media Library Platform

Shared/lib/python2.7/site-packages/stdnum/fi/__init__.py

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+# __init__.py - collection of Finnish 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 Finnish numbers."""
+
+# provide vat as an alias
+from stdnum.fi import alv as vat

Shared/lib/python2.7/site-packages/stdnum/fi/alv.py

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+# vat.py - functions for handling Finnish 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
+
+"""ALV nro (Arvonlisäveronumero, Finnish VAT number).
+
+The number is an 8-digit code with a weighted checksum.
+
+>>> validate('FI 20774740')
+'20774740'
+>>> validate('FI 20774741')  # invalid check digit
+Traceback (most recent call last):
+    ...
+InvalidChecksum: ...
+"""
+
+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('FI'):
+        number = number[2:]
+    return number
+
+
+def checksum(number):
+    """Calculate the checksum."""
+    weights = (7, 9, 10, 5, 8, 4, 2, 1)
+    return sum(weights[i] * int(n) for i, n in enumerate(number)) % 11
+
+
+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():
+        raise InvalidFormat()
+    if len(number) != 8:
+        raise InvalidLength()
+    if checksum(number) != 0:
+        raise InvalidChecksum()
+    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

Shared/lib/python2.7/site-packages/stdnum/fi/hetu.py

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+# hetu.py - functions for handling Finnish personal identity codes
+# coding: utf-8
+#
+# Copyright (C) 2011 Jussi Judin
+# 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
+
+"""HETU (Henkilötunnus, Finnish personal identity code).
+
+Module for handling Finnish personal identity codes (HETU, Henkilötunnus).
+See http://www.vaestorekisterikeskus.fi/default.aspx?id=45 for checksum
+calculation details and http://tarkistusmerkit.teppovuori.fi/tarkmerk.htm#hetu1
+for historical details.
+
+>>> validate('131052-308T')
+'131052-308T'
+>>> validate('131052-308U')
+Traceback (most recent call last):
+    ...
+InvalidChecksum: ...
+>>> validate('310252-308Y')
+Traceback (most recent call last):
+    ...
+InvalidComponent: ...
+>>> compact('131052a308t')
+'131052A308T'
+"""
+
+import re
+import datetime
+
+from stdnum.exceptions import *
+from stdnum.util import clean
+
+
+_century_codes = {
+    '+': 1800,
+    '-': 1900,
+    'A': 2000,
+}
+
+# Finnish personal identity codes are composed of date part, century
+# indicating sign, individual number and control character.
+# ddmmyyciiiC
+_hetu_re = re.compile(r'^(?P<day>[0123]\d)(?P<month>[01]\d)(?P<year>\d\d)'
+                      r'(?P<century>[-+A])(?P<individual>\d\d\d)'
+                      r'(?P<control>[0-9ABCDEFHJKLMNPRSTUVWXY])$')
+
+
+def compact(number):
+    """Convert the HETU to the minimal representation. This strips
+    surrounding whitespace and converts it to upper case."""
+    return clean(number, '').upper().strip()
+
+
+def _calc_checksum(number):
+    return '0123456789ABCDEFHJKLMNPRSTUVWXY'[int(number) % 31]
+
+
+def validate(number):
+    """Checks to see if the number provided is a valid HETU. It checks the
+    format, whether a valid date is given and whether the check digit is
+    correct."""
+    number = compact(number)
+    match = _hetu_re.search(number)
+    if not match:
+        raise InvalidFormat()
+    day = int(match.group('day'))
+    month = int(match.group('month'))
+    year = int(match.group('year'))
+    century = _century_codes[match.group('century')]
+    individual = int(match.group('individual'))
+    # check if birth date is valid
+    try:
+        datetime.date(century + year, month, day)
+    except ValueError:
+        raise InvalidComponent()
+    # for historical reasons individual IDs start from 002
+    if individual < 2:
+        raise InvalidComponent()
+    checkable_number = '%02d%02d%02d%03d' % (day, month, year, individual)
+    if match.group('control') != _calc_checksum(checkable_number):
+        raise InvalidChecksum()
+    return number
+
+
+def is_valid(number):
+    """Checks to see if the number provided is a valid HETU. It checks the
+    format, whether a valid date is given and whether the check digit is
+    correct."""
+    try:
+        return bool(validate(number))
+    except ValidationError:
+        return False
+
+
+# This is here just for completeness as there are no different length forms
+# of Finnish personal identity codes:
+format = compact