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IndexError

IndexError

What does this code mean?

Code IndexError · An issue reported by Python.

Official explanation · Original text

Raised when a sequence subscript is out of range. (Slice indices are silently truncated to fall in the allowed range; if an index is not an integer, TypeError is raised.)

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Built-in Exceptions — Python 3.15.2 documentation ↗

Creator: Python Software Foundation
License: Python Software Foundation License Version 2
Checked on: 2026-11-12

Modifications: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source details · Original licenses and notices