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| author | Leandro Regueiro <leandro.regueiro@gmail.com> | 2020-10-25 18:14:26 +0100 |
|---|---|---|
| committer | Arthur de Jong <arthur@arthurdejong.org> | 2021-01-10 17:04:41 +0100 |
| commit | 126496c3824f70cb19c8bd489050e0dfd38926a1 (patch) | |
| tree | aaaebfd6e56d57f8235ca8354cb415af3f6cdaed /stdnum/ua | |
| parent | b7b2af8a2d782bafb8e3a52479059b57243be026 (diff) | |
Add support for Ukraine РНОКПП number
Closes https://github.com/arthurdejong/python-stdnum/pull/242
Closes https://github.com/arthurdejong/python-stdnum/issues/117
Diffstat (limited to 'stdnum/ua')
| -rw-r--r-- | stdnum/ua/rntrc.py | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/stdnum/ua/rntrc.py b/stdnum/ua/rntrc.py new file mode 100644 index 0000000..301daa2 --- /dev/null +++ b/stdnum/ua/rntrc.py @@ -0,0 +1,87 @@ +# ubn.py - functions for handling Ukrainian RNTRC numbers +# coding: utf-8 +# +# Copyright (C) 2020 Leandro Regueiro +# +# 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 + +"""РНОКПП, RNTRC (Individual taxpayer registration number in Ukraine). + +The РНОКПП (Реєстраційний номер облікової картки платника податків, +registration number of the taxpayer's registration card) is a unique +identification number that is provided to individuals within Ukraine. The +number consists of 10 digits, the last being a check digit. + +More information: + +* https://uk.wikipedia.org/wiki/РНОКПП + +>>> validate('1759013776') +'1759013776' +>>> validate('1759013770') +Traceback (most recent call last): + ... +InvalidChecksum: ... +>>> validate('12345') +Traceback (most recent call last): + ... +InvalidLength: ... +>>> format(' 25 30 41 40 71 ') +'2530414071' +""" + +from stdnum.exceptions import * +from stdnum.util import clean, isdigits + + +def compact(number): + """Convert the number to the minimal representation.""" + return clean(number, ' ').strip() + + +def calc_check_digit(number): + """Calculate the check digit for number.""" + weights = (-1, 5, 7, 9, 4, 6, 10, 5, 7) + total = sum(w * int(n) for w, n in zip(weights, number)) + return str((total % 11) % 10) + + +def validate(number): + """Check if the number is a valid Ukraine RNTRC (РНОКПП) number. + + This checks the length, formatting and check digit. + """ + number = compact(number) + if len(number) != 10: + raise InvalidLength() + if not isdigits(number): + raise InvalidFormat() + if number[-1] != calc_check_digit(number): + raise InvalidChecksum() + return number + + +def is_valid(number): + """Check if the number is a valid Ukraine RNTRC (РНОКПП) number.""" + try: + return bool(validate(number)) + except ValidationError: + return False + + +def format(number): + """Reformat the number to the standard presentation format.""" + return compact(number) |