?i ldZddlmZddlmZddlddlmZmZd dZ d dZ d dZ dd Z d d Z ddd Zy )aISSN (International Standard Serial Number). The ISSN (International Standard Serial Number) is the standard code to identify periodical publications (e.g. magazines). An ISSN has 8 digits and is formatted in two pairs of 4 digits separated by a hyphen. The last digit is a check digit and may be 0-9 or X (similar to ISBN-10). More information: * https://en.wikipedia.org/wiki/International_Standard_Serial_Number * https://www.issn.org/ >>> validate('0024-9319') '00249319' >>> validate('0032147X') Traceback (most recent call last): ... InvalidChecksum: ... >>> validate('003214712') Traceback (most recent call last): ... InvalidLength: ... >>> compact('0032-1478') '00321478' >>> format('00249319') '0024-9319' >>> to_ean('0264-3596') '9770264359008' ) annotations)ean)*)cleanisdigitscRt|djjS)zConvert the ISSN to the minimal representation. This strips the number of any valid ISSN separators and removes surrounding whitespace.z -)rstripuppernumbers R/var/www/html/myprovider/mon_projet_qr/lib/python3.12/site-packages/stdnum/issn.pycompactr;s#   $ $ & , , ..chdtdt|Dz dz}|dk(rdSt|S)zsCalculate the ISSN check digit for 8-digit numbers. The number passed should not have the check digit included. c3DK|]\}}d|z t|zyw)N)int).0ins r z#calc_check_digit..Ds)5!Q1uA&5s  X)sum enumeratestr)r checks r calc_check_digitrAsD#5"+F"35558: ;E2+3-3u:-rct|}t|dds tt|dk7r t t |dd|dk7r t |S)zgCheck if the number is a valid ISSN. This checks the length and whether the check digit is correct.Nr)rr InvalidFormatlen InvalidLengthrInvalidChecksumr s r validater&Is\V_F F3BK o 6{aos $r 2 MrcJ tt|S#t$rYywxYw)z-Check if the number provided is a valid ISSN.F)boolr&ValidationErrorr s r is_validr*Vs)HV$%% s  ""c4t|}|dddz|ddzS)z8Reformat the number to the standard presentation format.N-)rr s r formatr.^s' V_F "1: fQRj ((rcZdt|ddz|z}|tj|zS)z$Convert the number to EAN-13 format.977Nr!)r&rr)r issue_codes r to_eanr2ds3 Xf%cr* *Z 7F C((0 00rN)r rreturnr)r rr3r()00)r rr1rr3r)__doc__ __future__rstdnumrstdnum.exceptions stdnum.utilrrrrr&r*r.r2rr r;s7(@#'/ . ) 1r