CODEWITHSUNDEEP
pythonpython-3.x
Cameron McMains
Cameron McMains

Reputation: 59

Loop a function (including input) until a specific input is pressed

I'm working on some homework and have been tasked with creating a simple program that:

It has to come out exactly like asked, and I have it doing so at the moment. I just can't figure out how to loop the prompt back and get different input without it being an infinite loop or never actually taking the new input.

Here is what the output should look like once done:

Enter input string:
Jill, Allen
First word: Jill
Second word: Allen

Enter input string:
Golden , Monkey
First word: Golden
Second word: Monkey

Enter input string:
Washington,DC
First word: Washington
Second word: DC

Enter input string:
q

I can get it through the first entry and make it quit with 'q,' but can't get it to prompt the user again and get a different input.

Here is my code:

def strSplit(usrStr):
    while "," not in usrStr:
        print("Error: No comma in string.\n")
        usrStr = input("Enter input string:\n")
    else:
        strLst = usrStr.split(",")
        print("First word: %s" % strLst[0].strip())
        print("Second word: %s\n" % strLst[1].strip())


usrStr = input("Enter input string:\n")

while usrStr != 'q':
    strSplit(usrStr)
    break

Any help would be fantastic! Thank you.

Upvotes: 0

Views: 92

Answers (1)

iz_
iz_

Reputation: 16593

You're almost there. Try this:

while True:
    usrStr = input("Enter input string:\n")
    if usrStr == 'q':
        break

    if "," not in usrStr:
        print("Error: No comma in string.\n")
    else:
        strLst = usrStr.split(",")
        print("First word: %s" % strLst[0].strip())
        print("Second word: %s\n" % strLst[1].strip())

Of course, you could still use your strSplit function with some modifications:

def strSplit(usrStr):
    if "," not in usrStr:
        print("Error: No comma in string.\n")
    else:
        strLst = usrStr.split(",")
        print("First word: %s" % strLst[0].strip())
        print("Second word: %s\n" % strLst[1].strip())

while True:
    usrStr = input("Enter input string:\n")
    if usrStr == 'q':
        break

    strSplit(usrStr)

Upvotes: 2

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