Загрузка...

You Wrote This Bug Too: Why your functools.partial function silently breaks state!

Python Short: Why your functools.partial function silently breaks state!

In this Python short:
- The bug shown
- Why Python does this
- The correct fix

Explanation: The bug is that partial captures the argument value at creation, but here it closes over the loop variable 'i' directly, which leads to unexpected bindings in some contexts. Python closures capture variables by reference, causing the loop variable to have its last value for all partial functions if

Watch closely before your next functools usage

Subscribe to OopsPython for daily Python fixes.
New Python mistake explained every day!

#python #short #why #your #functools #partial #function #silently #breaks #state #in #this #the #bug #shown #does #correct #fix #explanation #is #that #captures #argument #value #at #creation #but #here #it #closes #over #loop #variable #i #directly #which #leads #to #unexpected #bindings #some #contexts #closures #capture #variables #by #reference #causing #have #its #last #for #all #functions #if #watch #closely #before #next #usage #subscribe #oopspython #daily #fixes #new #mistake #explained #every #day #pythonshorts #coding #programming #pythontips #learnpython #pythonmistakes #developer

Видео You Wrote This Bug Too: Why your functools.partial function silently breaks state! канала OopsPython
coding interview python coding shorts coding tips developer tips faang python learn python oopspython programming python python best practices python bug python clean code python debugging python developer tips python explained python functools partial python gotchas python intermediate python interview python interview prep python interview questions python mistakes python shorts python tips python tricks python tutorial software engineering
Комментарии отсутствуют
Зарегистрируйтесь или войдите с
Информация о видео
3 апреля 2026 г. 9:40:06
00:00:28
OopsPython
Теги
Правообладателям
Жалоба на материал Недопустимый материал Нарушение авторских прав
Комментарии
Поделиться
Другие видео канала

This Bug Ships To Production: Why does 'aaa'.count('aa') return 1, not 2?This Bug Ships To Production: Why does 'aaa'.count('aa') return 1, not 2?

Your Python Is Too Slow: Why mock.patch silently patches the WRONG object locationYour Python Is Too Slow: Why mock.patch silently patches the WRONG object location

Tricky Python Behavior: Why does pandas merge suddenly duplicate rows silently?Tricky Python Behavior: Why does pandas merge suddenly duplicate rows silently?

What is a learning rate? | Python Interview Question #shortsWhat is a learning rate? | Python Interview Question #shorts

Infosys Python Developer Interview Preparation 2026 | 5 High-Impact Q&AInfosys Python Developer Interview Preparation 2026 | 5 High-Impact Q&A

HCL Ml Engineer Interview Preparation 2026 | 5 High-Impact Q&AHCL Ml Engineer Interview Preparation 2026 | 5 High-Impact Q&A

What is kurtosis in statistics?? | DS Interview Question Explained #ShortsWhat is kurtosis in statistics?? | DS Interview Question Explained #Shorts

This Python Code Is Wrong: Why your Python memory leaks inside circular references!This Python Code Is Wrong: Why your Python memory leaks inside circular references!

Your Python Is Too Slow: Why your HTTP calls get slower with requests.get()!Your Python Is Too Slow: Why your HTTP calls get slower with requests.get()!

Tricky Python Behavior: Why does list[1:3] = [] delete elements in-place?Tricky Python Behavior: Why does list[1:3] = [] delete elements in-place?

Wait, Python Does This?: Why does 7//2 give 3 and not 3.5?Wait, Python Does This?: Why does 7//2 give 3 and not 3.5?

Only 10 % will answer ,Comment The Correct Output: Negative Index#coding #challenge #programmingOnly 10 % will answer ,Comment The Correct Output: Negative Index#coding #challenge #programming

What is a linked list? | DSA Interview Question Every Candidate Should Know #DSA...What is a linked list? | DSA Interview Question Every Candidate Should Know #DSA...

This Python Line Will Fool You | Why does Python crash with deep recursion but C++ doesn't?This Python Line Will Fool You | Why does Python crash with deep recursion but C++ doesn't?

This Python Line Will Fool You | Ever wondered why your decorator breaks your functions name?This Python Line Will Fool You | Ever wondered why your decorator breaks your functions name?

What is generative AI?? | GenAI Interview Question Explained #ShortsWhat is generative AI?? | GenAI Interview Question Explained #Shorts

Your Python Is Too Slow: Why your datetime timezone shifts silently wreck data inteYour Python Is Too Slow: Why your datetime timezone shifts silently wreck data inte

This Python Output Makes No Sense | Did you know using '+' to join strings in Python can be supThis Python Output Makes No Sense | Did you know using '+' to join strings in Python can be sup

This Breaks Python Silently: Why does dict.pop() crash without a default?This Breaks Python Silently: Why does dict.pop() crash without a default?

This Python Code Is Wrong: Why cProfile missed the real slow function in your code!This Python Code Is Wrong: Why cProfile missed the real slow function in your code!

You Wrote This Bug Too: Why does threading break simple += in Python?You Wrote This Bug Too: Why does threading break simple += in Python?

Яндекс.Метрика
© 2008-2026 «Информационно-развлекательный портал города Верхняя Салда»
salda.ws@mail.ru salda_ws Контакты Карта портала Сообщить об ошибке Соглашения Пользовательское соглашение Соглашение о конфиденциальности Согласие на обработку персональных данных Информация для правообладателей Об использовании Cookies
Все заметки Новая заметка Страницу в заметки
Страницу в закладки Мои закладки
На информационно-развлекательном портале SALDA.WS применяются cookie-файлы. Нажимая кнопку Принять, вы подтверждаете свое согласие на их использование.
О CookiesНапомнить позжеПринять