stdnum.ch.uid¶
UID (Unternehmens-Identifikationsnummer, Swiss business identifier).
The Swiss UID is used to uniquely identify businesses for taxation purposes. The number consists of a fixed “CHE” prefix, followed by 9 digits that are protected with a simple checksum.
This module only supports the “new” format that was introduced in 2011 which completely replaced the “old” 6-digit format in 2014.
More information:
>>> validate('CHE-100.155.212')
'CHE100155212'
>>> validate('CHE-100.155.213')
Traceback (most recent call last):
...
InvalidChecksum: ...
>>> format('CHE100155212')
'CHE-100.155.212'
- stdnum.ch.uid.calc_check_digit(number)¶
Calculate the check digit for organisations. The number passed should not have the check digit included.
- stdnum.ch.uid.compact(number)¶
Convert the number to the minimal representation. This strips surrounding whitespace and separators.
- stdnum.ch.uid.format(number)¶
Reformat the number to the standard presentation format.
- stdnum.ch.uid.is_valid(number)¶
Check if the number is a valid UID.
- stdnum.ch.uid.validate(number)¶
Check if the number is a valid UID. This checks the length, formatting and check digit.