-í µe>cs&dZ dfd„ƒYZdS(sÏ Date.py - by Richard Shiao Represents dates on the Gregorian Calendar, containing fields for four digit year, two digit month, and two digit day. Includes comparision, addition, and subtraction features. sDatecs:  hZ ded< ded< ded<ded<d ed <d ed <d ed<ded<ded<ded<ded<ded<d„Z(d„Z6dddd„Z@d„ZHdd„ZQd „Zfd!„Zud"„Zd#„Z d$„Z d%„Z RS(&NsJanuaryisFebruaryisMarchisAprilisMayisJuneisJulyisAugustis Septemberi sOctoberi sNovemberi sDecemberi csw|iddjo  dSnL!|iddjo "dSn*#|iddjo $dSn&dSdS(sùReturns 1 if self is part of leap year. Else, returns 0. If a year is divisible by 4, and not divisible by 100, it is a leap year. If a year is divisible by 400, it is a leap year. All other years are not leap years.iiiidiN(sselfsyear(sself((s ./richard.pys isLeapYears   cs(,-|dddddddgjo .dSnW/|d d d d gjo 0d Sn01|djo |iƒo 2dSn4dSdS(s¤Returns the number of days in a given month. The argument month is an integer 1 - 12. If the month is February, checks whether self is a leap year.iiiiii i iiii i iiiiN(smonthsselfs isLeapYear(sselfsmonth((s ./richard.pysnum_days(s%   ilcs.6;<||_=||_>||_dS(sInitializes date object with 1900-01-01, unless respective arguments supplied. Year must be a positive integer, and must be explicit (e.g. 99 is not 1999). Month must be an integer between 1 and 12. Day must be a existing day, given the year and month.N(syearsselfsmonthsday(sselfsyearsmonthsday((s ./richard.pys__init__6s  csU@CDt|dd!ƒ|_Et|dd!ƒ|_Ft|dd!ƒ|_dS(s²Return a new Date object given a string formatted date: YYYY-MM-DD. Year must be four digits long. Month must be two digits long.mro Day must be two digits long.iiiiii N(sintsstrsselfsyearsmonthsday(sselfsstr((s ./richard.pysnewDate@sstextcsƒHKL|djo7Mti|idt|iƒdt|iƒSn3Ot|iƒdt|iƒdt|iƒSdS(sº Converts a Date object to a string in the format YYYY-MM-DD. Or, if 'text' specified for the argument format, converts Date object to string in format 'Month DD, YYYY' stexts s, s-N(sformatsDatesmonthsselfsstrsdaysyear(sselfsformat((s ./richard.pys__str__Hs7cs×QST|i|ijo UdSn­V|i|ijo WdSnŒY|i|ijo ZdSnk[|i|ijo \dSnJ^|i|ijo _dSn)`|i|ijo adSnddSdS(s… If self occurrs before other Date, return -1. If self occurrs later than other, return 1. If self is other Date, return 0.iiÿÿÿÿiN(sselfsyearsothersmonthsday(sselfsother((s ./richard.pys__cmp__Qs      cs<fgh|idjo|idjo |iƒ p‹|idjo|idjo |iƒp^|idddddd d gjo |id jp)|id d ddgjo |idjoYld|_m|id|_n|idjo#od|_p|id|_nnr|id|_s|SdS(s$Returns the date one day after self.iiiiiiiii i iiii i ii N(sselfsmonthsdays isLeapYearsyear(sself((s ./richard.pysnextfs¿  csœuvw|idjoex|id|_y|idjo#zd|_{|id|_n||i|iƒ|_n~|id|_|SdS(s%Returns the date one day before self.iii N(sselfsdaysmonthsyearsnum_days(sself((s ./richard.pysprevus cs‡†‡t|i|i|iƒ}ˆ|djo‰|d|SnŠx/Š|djo‹|iƒŒ|d}qMW|SdS(síReturns a date plus the amount given in inc. Positive values for inc will cause the date returned to be inc days after self. Negative values for inc will cause the date returned to be inc days before self.iiN(sDatesselfsyearsmonthsdaysdsincsnext(sselfsincsd((s ./richard.pys__add__s cs‡”•t|i|i|iƒ}–|djo—|d|Sn˜x/˜|djo™|iƒš|d}qMW›|SdS(sîReturns a date minus the amount given in inc. Positive values for inc will cause the date returned to be inc days before self. Negative values for inc will cause the date returned to be inc days after self.iiN(sDatesselfsyearsmonthsdaysdsincsprev(sselfsincsd((s ./richard.pys__sub__s cs.žŸ||_ ||_¡||_dS(s6Sets self to have new values for year, month, and day.N(syearsselfsmonthsday(sselfsyearsmonthsday((s ./richard.pyssets  ( smonths isLeapYearsnum_dayss__init__snewDates__str__s__cmp__snextsprevs__add__s__sub__sset(((s ./richard.pysDate s0                    N(s__doc__sDate(sDate((s ./richard.pys?s