checkdigit.parity.calculate

checkdigit.parity.calculate(data: str, even: bool = True) → str

Adds a parity bit onto the end of a block of data.

Parameters:

• data – A string containing binary digits

• even – Whether to use even or odd parity (defaults to even)

Returns:

The parity bit of the data

Return type:

str

Examples

>>> from checkdigit import parity
>>> # Even parity
>>> parity.calculate("0110")
'0'
>>> parity.calculate("01101")
'1'

>>> # Odd parity
>>> parity.calculate("01101", False)
'0'
>>> parity.calculate("0", False)
'1'