python data_error ai_generated true

ERROR: packaging.requirements.InvalidRequirement: Expected end of string, got ';' in requirement 'requests>=2.25; extra == "security"'

ID: python/packaging-requirement-parsing-error

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2026-01-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.9 active — — —
3.10 active — — —

Root Cause

The requirement string uses extras syntax incorrectly; extras must be enclosed in square brackets, not separated by semicolon.

generic

中文

需求字符串错误地使用了 extras 语法；extras 必须用方括号括起来，而不是用分号分隔。

Workarounds

  1. 95% success Use correct extras syntax with square brackets 
    Write: 'requests[security]>=2.25' (extras inside brackets).
  2. 90% success Use environment markers for conditional dependencies 
    Write: 'requests>=2.25; extra == "security"' but note that this is for markers, not extras. For extras, use brackets.

Dead Ends

Common approaches that don't work:

  1. Removing the semicolon and extra entirely 70% fail

    Loses the conditional requirement.

  2. Using a comma instead of semicolon 80% fail

    Comma is not valid for extras syntax.