Question

result = raw_input("Enter results file: ")

while True:
    try:
        result = get_marks_from_file(result)
        break
    except IOError:
        print 'Please supply correct file. '

Above is the raw_input function that I am using to bring a file. When I put correct file name, it works well. But when I put something else such as 'asdsada', the sentence 'please supply correct file. ' is printed and it doesn’t stop. Is there any method for just one printing and return to the question?

Any advices or helps would be appreciated.

Answer 1

Move the raw_input inside your loop:

while True:
     result = raw_input("Enter results file: ")

     try:
         result = get_marks_from_file(result)
         break
     except IOError:
         print 'Please supply correct file. '