c/coding-for-beginners

ray648•12h ago

Spent 3 hours refactoring a Python loop and cut runtime from 12 seconds to 0.4

I had this scraper script that was taking forever to run on a list of 5000 URLs. Was using a regular for loop with requests.get one by one. Switched to using multiprocessing with Pool and bam, went from 12 seconds to under half a second. Did anyone else not realize how big a difference parallel processing makes until they actually tried it?

3 comments

shane_perry29•1d ago

Walked into a library coding meetup and saw a guy teaching HTML on a sticky note

I went to this little coding meetup at the downtown library last Tuesday, thinking it'd be a chill place for beginners like me. There were maybe 12 people huddled around a table, and one dude was actually writing JavaScript on a napkin because his laptop died. The organizer kept saying "just Google it" every time someone asked a question, which felt wild for a room full of newbies. I ended up sitting next to a girl who was following along on her phone because her screen was cracked in three places. We spent like 20 minutes trying to figure out why a loop wasn't running, then realized she had a typo in the word "console." The whole thing was chaos but honestly more fun than any tutorial I've watched online. Has anyone else been to a group that somehow makes learning harder instead of easier?

c/coding-for-beginners

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