stdnum.cz.dic¶
DIČ (Daňové identifikační číslo, Czech VAT number).
The number is an 8, 9 or 10 digit code that includes a check digit and is used to uniquely identify taxpayers for VAT (DPH in Czech). The number can refer to legal entities (8 digit numbers), individuals with a RČ (the 9 or 10 digit Czech birth number) or individuals without a RČ (9 digit numbers that begin with a 6).
>>> compact('CZ 25123891')
'25123891'
>>> validate('25123891') # legal entity
'25123891'
>>> validate('25123890') # incorrect check digit
Traceback (most recent call last):
...
InvalidChecksum: ...
>>> validate('7103192745') # RČ
'7103192745'
>>> validate('640903926') # special case
'640903926'
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stdnum.cz.dic.
calc_check_digit_legal
(number)¶ Calculate the check digit for 8 digit legal entities. The number passed should not have the check digit included.
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stdnum.cz.dic.
calc_check_digit_special
(number)¶ Calculate the check digit for special cases. The number passed should not have the first and last digits included.
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stdnum.cz.dic.
compact
(number)¶ Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.
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stdnum.cz.dic.
is_valid
(number)¶ Check if the number is a valid VAT number.
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stdnum.cz.dic.
validate
(number)¶ Check if the number is a valid VAT number. This checks the length, formatting and check digit.