checksum

checksum

Used for validating the Luhn-30 checksums used with the OpenMRS and ChildCount+ health IDs.

checksum.checksum.BASE_CHARACTERS = u'0123456789acdefghjklmnprtuvwxy'

Valid characters for health IDs

exception checksum.checksum.CheckDigitException

Raised on invalid input to checksum methods

checksum.checksum.clean_chars(chars)

Remove whitespace

checksum.checksum.get_check_digit(identifier, base_chars)

Compute the check digit for an identifier using the specified legal characters.

Parameters:

• identifier (unicode) – String on which to compute the checksum
• base_chars (unicode) – String of legal characters

checksum.checksum.is_valid_identifier(identifier, base_chars=u'0123456789acdefghjklmnprtuvwxy')

Use the Luhn-30 checksum to validate a string

Parameters:

• identifier (unicode) – String whose validity should be checked
• base_chars (unicode) – String of legal characters

Returns:

bool