python type_error ai_generated true

TypeError: cannot unpack non-iterable int object

ID: python/typeerror-cannot-unpack-non-iterable

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2025-02-14First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.8 active — — —
3.9 active — — —
3.10 active — — —

Root Cause

A test function returns an integer but the caller tries to unpack it as a tuple or list.

generic

中文

测试函数返回整数，但调用者尝试将其解包为元组或列表。

Workarounds

  1. 95% success Return a tuple instead of int 
    def get_data(): return (1, 2); a, b = get_data()
  2. 85% success Unpack only if iterable 
    result = get_data(); if hasattr(result, '__iter__'): a, b = result

Dead Ends

Common approaches that don't work:

  1. Wrapping return value in a list 60% fail

    If the function returns a single int, wrapping creates a list, but unpacking still expects multiple values.

  2. Using *args in function definition 40% fail

    Changes function signature and may break other callers.