Clarification on signature for `index`

Documentation

The documentation reads that the signature for index (sequences, str, bytes) is .index(value[, start[, end]]), (the name of the first parameter changes depending on the underlying type). This leaves it open to interpretation whether any/all the parameters can be named parameters (that they cannot). Should the signature of these methods be .index(sub[, start[, end]], /)?

Ref: https://docs.python.org/3/library/stdtypes.html#sequence.index

Note: Tried looking whether there is some convention that specifies that if there are optional parameters in brackets, this means that the parameters are positional only, but was unable to find anything.

Linked PRs

• gh-152092

Beginne mit der Dokumentation zu sequence.index im referenzierten Abschnitt von stdtypes.html und prüfe den verknüpften PR gh-152092, bevor du Änderungen vornimmst. Bestätige, wie positionsbezogene Parameter an anderer Stelle dokumentiert sind, und stelle dann sicher, dass die Indexsignaturen die zulässige Aufrufform eindeutig vermitteln.