?i VdZddlmZddlddlmZmZd dZd dZd dZ d dZ d d Z y ) aIMO number (International Maritime Organization number). A number used to uniquely identify ships (the hull) for purposes of registering owners and management companies. The ship identification number consists of a six-digit sequentially assigned number and a check digit. The number is usually prefixed with "IMO". Note that there seem to be a large number of ships with an IMO that does not have a valid check digit or even have a different length. >>> validate('IMO 9319466') '9319466' >>> validate('IMO 8814275') '8814275' >>> validate('8814274') Traceback (most recent call last): ... InvalidChecksum: ... >>> format('8814275') 'IMO 8814275' ) annotations)*)cleanisdigitsct|djj}|jdr|dd}|S)zConvert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace. IMON)rupperstrip startswithnumbers Q/var/www/html/myprovider/mon_projet_qr/lib/python3.12/site-packages/stdnum/imo.pycompactr1s@63  % % ' - - /F  Mc Vttdt|ddDdzS)z*Calculate the check digits for the number.c3DK|]\}}t|d|z zyw)N)int).0ins r z#calc_check_digit..<s!F13q6QU#Fs N )strsum enumeraters rcalc_check_digitr :s( sF &!*0EFFK LLrct|}t|s tt|dk7r t t |dd|dk7r t |S)RCheck if the number provided is valid. This checks the length and check digit.rN)rr InvalidFormatlen InvalidLengthr InvalidChecksumrs rvalidater(?sVV_F F o 6{aos $r 2 MrcJ tt|S#t$rYywxYw)r"F)boolr(ValidationErrorrs ris_validr,Ls)HV$%% s  ""cdt|zS)z8Reformat the number to the standard presentation format.zIMO )rrs rformatr.Us GFO ##rN)rrreturnr)rrr/r*) __doc__ __future__rstdnum.exceptions stdnum.utilrrrr r(r,r.rrr5s/*,#'M $r