カレンダーをpythonで実現(1800年前後)

検査結果の正確性、推薦ホームページのリンク:
カレンダークレイジー検索

'''
*       （  1800  ）
'''
def main():
    year=eval(input("Enter full year(e.g.,2001)"))
    #month=eval(input("Enter month as number between 1 and 12"))
    for i in range(1,13):
        printMonth(year,i)
        print("
---------------------------------")

def printMonth(year,month):
    printMonthTitle(year,month)
    printMonthBody(year,month)

def printMonthTitle(year,month):
    print("    ",getMonthName(month),"  ",year)
    print("---------------------------------")
    print(" Sun  Mon  Tue  Wed  Thu  Fri  Sat")
'''
*         
'''
def getMonthName(month):
    if month==1:
        return "January"
    elif month==2:
        return "February"
    elif month==3:
        return "March"
    elif month==4:
        return "April"
    elif month==5:
        return "May"
    elif month==6:
        return "June"
    elif month==7:
        return "July"
    elif month==8:
        return "August"
    elif month==9:
        return "September"
    elif month==10:
        return "October"
    elif month==11:
        return "November"
    else:
        return "December"
'''
*         
'''
def printMonthBody(year,month):
    startDay=getStartDay(year,month)
    for v in range(startDay):
        print("    ",end=' ')
    monthDay=getNumberOfDaysInMonth(year,month)
    for v in range(1,monthDay+1):
        print(format(v,"4d"),end=' ')
        if (v+startDay)%7==0:
            print()
'''
*     
'''
def getStartDay(year,month):
    #1800/1/1   3
    Start_1800_1_1=3
    totalDay=getTotalDays(year,month)
    return (totalDay+Start_1800_1_1)%7

'''
*        1800 1 1   
'''
def getTotalDays(year,month):
    totalDays=0
    for v in range(1800,year):
        if isLeapYear(v):
            totalDays=totalDays+366
        else:
            totalDays=totalDays+365

    for i in range(1,month):
        totalDays=totalDays+getNumberOfDaysInMonth(year,i)

    return totalDays

'''
*       
'''
def isLeapYear(year):
    return (year%100!=0 and year%4==0) or year %400==0
'''
*     
'''
def getNumberOfDaysInMonth(year,month):
    if(month==1 or month==3 or month==5 or month==7 or month==8 or month==10 or month ==12):
        return 31
    if (month==4 or month ==6 or month ==9 or month==11 ):
        return 30
    if month==2:
        return 29 if isLeapYear(year) else 28
    return 0

main()

いくつかの判断が多くなって、1800年前後を実現することができます

'''
*       
'''
def main():
    year=eval(input("Enter full year(e.g.,2001)"))
    #month=eval(input("Enter month as number between 1 and 12"))
    for i in range(1,13):
        printMonth(year,i)
        print("
---------------------------------")

def printMonth(year,month):
    printMonthTitle(year,month)
    printMonthBody(year,month)

def printMonthTitle(year,month):
    print("    ",getMonthName(month),"  ",year)
    print("---------------------------------")
    print(" Sun  Mon  Tue  Wed  Thu  Fri  Sat")
'''
*         
'''
def getMonthName(month):
    if month==1:
        return "January"
    elif month==2:
        return "February"
    elif month==3:
        return "March"
    elif month==4:
        return "April"
    elif month==5:
        return "May"
    elif month==6:
        return "June"
    elif month==7:
        return "July"
    elif month==8:
        return "August"
    elif month==9:
        return "September"
    elif month==10:
        return "October"
    elif month==11:
        return "November"
    else:
        return "December"
'''
*         
'''
def printMonthBody(year,month):
    startDay=getStartDay(year,month)
    for v in range(startDay):
        print("    ",end=' ')
    monthDay=getNumberOfDaysInMonth(year,month)
    for v in range(1,monthDay+1):
        print(format(v,"4d"),end=' ')
        if (v+startDay)%7==0:
            print()
'''
*     
'''
def getStartDay(year,month):
    #1800/1/1   3
    Start_1800_1_1=3
    totalDay=getTotalDays(year,month)
    if year>=1800:
        return (totalDay+Start_1800_1_1)%7
    else :
        return (-totalDay+Start_1800_1_1)%7
'''
*        1800 1 1   
'''
def getTotalDays(year,month):
    totalDays=0
    bigYear=1800 if 1800>year else year
    smallYear =1800 if 1800<year else year
    for v in range(smallYear,bigYear):
        if isLeapYear(v):
            totalDays=totalDays+366
        else:
            totalDays=totalDays+365
    if bigYear==year:
        for i in range(1,month):
            totalDays=totalDays+getNumberOfDaysInMonth(year,i)
    else :
        for i in range(1,month):
            totalDays=totalDays-getNumberOfDaysInMonth(year,i)
    return totalDays

'''
*       
'''
def isLeapYear(year):
    return (year%100!=0 and year%4==0) or year %400==0
'''
*     
'''
def getNumberOfDaysInMonth(year,month):
    if(month==1 or month==3 or month==5 or month==7 or month==8 or month==10 or month ==12):
        return 31
    if (month==4 or month ==6 or month ==9 or month==11 ):
        return 30
    if month==2:
        return 29 if isLeapYear(year) else 28
    return 0

main()