Question about fixing infinite loops in my first Python project

I was working on a simple Python script to track inventory (kind of like my warehouse job, but just for practice). I set up a while loop to keep asking for input until the user typed 'quit', but it just kept running forever. I couldn't figure out why (my code looked right to me, you know?). After staring at it for an hour, I decided to add some print statements to see what was happening. Turns out, I was comparing strings without stripping whitespace, so 'quit ' with a space didn't match my condition. I used the .strip() method, and it worked perfectly. Now I always clean up user input first, and I think a lot of beginners run into similar issues with data types and comparisons.

3 comments

3 Comments

kareny591mo ago

That .strip() method saving the day is so familiar. I've spent whole afternoons tracing loops that broke on a sneaky space or newline. It feels silly after you spot it, but in the moment it's pure agony. Your habit of cleaning input right away is the only way to stay sane.

nathan28916d ago

Remember my friend who spent hours debugging a price check only to find a hidden tab?

avery4121mo ago

Seriously? A single space made your loop run forever? That's wild, but it happens all the time with user input. Always cleaning data first is the way to go.