How to Prevent Star Unpacking From Eating All Memory
Using *rest to unpack a generator forces the ENTIRE generator into a list in memory. Millions of items at once.
#python #unpacking #generator #memory #performance #howto #production #staroperator
Python Peak
@PythonPeak
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Quick Python chats, ideas, and tips to level up your coding
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Indentation vs Braces: THE HOLY WAR of Programming!
Python's mandatory indentation vs JavaScript's braces - which syntax wins? MOST CONTROVERSIAL!
#python #javascript #pythonvsjs #indentation #braces #syntaxstyle #codeformatting #viralcoding #programmingdebate #holywar #mindblown #controversial
Indentation vs Braces: THE HOLY WAR of Programming! #holywar
Python vs JS Ticketing Replay Gate
Same ticket purchase, zero duplicate seats.
#python #javascript #viralcoding #codecomparison #idempotency #retries #payments #backendsafety #ticketing #events #replay #reliability
Python vs JS Ticketing Replay Gate #viralcoding
Decorator Order Executes Route BEFORE Auth Check?!
DECORATOR DISASTER! Apply bottom-to-top! Route runs BEFORE auth! Non-admin deletes 847 users! Cannot recover! $4.7M data loss! €2.7M GDPR fine! Security team FIRED!
#python #pythondisaster #decoratororder #authenticationbypass #routesecurity #productionbug #pythonshorts #pythonwtf #adminaccess #careerending #gdpr #flask
Decorator Order Executes Route BEFORE Auth Check?! #Flask
What's wrong with this Python streaming response?
What's wrong with this Python streaming response in an API. The Python code closes the database cursor before the generator is consumed, so the stream fails mid response. In Python services this causes partial downloads.
#whatswrongwiththispythoncode #pythonbug #pythonproductionbug #pythondebugging #pythonbackend #pythoncodereview #pythonmistake #pythonbestpractices #pythonreliability #pythonincid...
Whats wrong with this Python streaming response? #pythondataloss
Why does this Python asyncio task run on wrong loop?
Why does this Python asyncio task run on wrong loop in a multi-loop app. The Python code creates a task from a thread without passing the loop. In Python services this schedules on the wrong event loop.
#whatswrongwiththispythoncode #pythonbug #pythonproductionbug #pythondebugging #pythonbackend #pythoncodereview #pythonmistake #pythonbestpractices #pythonreliability #pythonincident #pythonapi ...
Why does this Python asyncio task run on wrong loop? #whatswrongwiththispythoncode
How to Stop dict.fromkeys From Sharing Lists
fromkeys can point every key to the same list.
How to Stop dict.fromkeys From Sharing Lists #bug
Web Network Vertical
8 rings with 24 spokes create a massive spider web! Python weaves this intricate network pattern! 🕸️✨
#python #pythontricks #turtlegraphics #spiderweb #radialpattern #webnetwork #concentricrings #spokespattern #naturegeometry #pythoncircles #symmetricalweb #networkstructure
Web Network Vertical #concentricrings
How to Create a Dict From Two Lists Instantly
dict(zip(keys, vals)). One line. No loop. Most forget this.
How to Create a Dict From Two Lists Instantly #zip
What's wrong with this Python cache read?
What's wrong with this Python cache read in a quota service. The Python code treats falsey values as a cache miss, so real zeros keep hitting the database. In production Python APIs this explodes traffic and latency when quotas are exhausted.
#whatswrongwiththispythoncode #pythonbug #pythonproductionbug #pythondebugging #pythonbackend #pythoncodereview #pythonmistake #pythonbestpractices #pythonreliabilit...
