Python program EOF error with inputs

Question

I have been trying to convert my code from java to python and I come across this issue. I am trying to make a calendar and everything I input the month and year, I come across this issue that I do not know what is means.

May you guys help me out?

Traceback (most recent call last):
  File "/Users/macbook/Documents/Untitled.py", line 41, in <module>
    main()
  File "/Users/macbook/Documents/Untitled.py", line 30, in main
    m, y = eval(input("Enter the month, and year (separated by spaces): "))
  File "<string>", line 1
    12 2013
          ^
SyntaxError: unexpected EOF while parsing

My code:

#------------------------------------------------------------------------
def isLeapYear():
    if((year % 4 == 0) and (year % 100 != 0) or (year % 400 == 0)):
        return true
    else:
        return false

#---------------------------------------------------------------------
def dayOfWeek(mon, day, year):
    if(mon < 3):
        year = year-1

    wy = 3 + year + (year/4) - (year/100) + (year/400)
    wm = int(2.6 * ((mon+9 % 12) +0.5))
    wd = day-1
    return (wd + wm + wy) % 7

#---------------------------------------------------------------------
def daysInMonth(month, year):
    if(month ==4 or month ==6 or month ==9 or month==11):
        return 30
    elif(month==2):
        if(isLeapYear(year)):
            return 29
        else:
            return 28
    else:
        return 31

def main():
    m, y = eval(input("Enter the month, and year (separated by spaces): "))
    print("Sun Mon Tue Wed Thu Fri Sat\n")
    i=0
    while(i<dayOfWeek(m,1,y)):
        print("     ")
        i=i+1

    d=1
    while(d <= daysInMonth(m,y)):
        print(d)
        if(dayOfWeek(m,d,y) == 6):
            print("\n")
        d=d+1

main()

Martijn Pieters · Accepted Answer · 2013-11-30 16:16:30Z

2

eval() only takes valid Python expressions. 12 2013 is not a valid Python expression.

Either require that the numbers are separated by a comma ('12, 2013') or use a different method of parsing the date input.

Try to avoid eval() for parsing input; a user with less friendly intent could enter arbitrary code to mess up your program and hijack the process when you do that.

The following line would work just as well for your purposes:

m, y = map(int, input("Enter the month, and year (separated by spaces): ").split())

answered Nov 30, 2013 at 16:16

Martijn Pieters

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4 Comments

user3002936 Over a year ago

thanks! however, after i fixed that issue my dates won't print out when i compile my program. i can't seem to figure out the problem.

Martijn Pieters Over a year ago

@user3002936: your dayOfWeek(m,1,y) call never varies, so there is an infinite loop there.

user3002936 Over a year ago

oh okay, and i fixed that but it still doesn't print like a calendar should do. how do i print System.out.printf("%-5d", d) in python? im getting stuck there.

Martijn Pieters Over a year ago

You can use str.format() formatting (new style): print(format(d, '-5d')).

Maxime Lorant · Accepted Answer · 2013-11-30 16:17:25Z

1

The error is obviously here:

m, y = eval(input("Enter the month, and year (separated by spaces): "))

You seems to have entered the string 12 2013 and you ask Python to eval it. But, 12 2013 means nothings in Python (it's just two integers separeted by a space). You can

Add a comma between number, 12, 2013 and it'll worked with the same code
Ask numbers with two call of input

For security matters, you should implement the second solution.

answered Nov 30, 2013 at 16:17

Maxime Lorant

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