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gh-125897: Use positional-only parameter indicators for range() #125945

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Merged
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Aug 11, 2025
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gh-125897: Use positional-only parameter indicators for range() #125945

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4 changes: 2 additions & 2 deletions Doc/library/functions.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1713,8 +1713,8 @@ are always available. They are listed here in alphabetical order.


.. _func-range:
.. class:: range(stop)
range(start, stop, step=1)
.. class:: range(stop, /)
range(start, stop, step=1, /)
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I think enumerating all three cases is slightly nicer. The step argument is for advanced use-cases. Thoguhts @terryjreedy?

Suggested change
range(start, stop, step=1, /)
range(start, stop, /)
range(start, stop, step, /)

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I generally prefer fewer lines, partly from experience with IDLE call tips (which would be similar in other IDEs). Serhiy generally went with fewer in his PR, as he did here, except where really needed. Two are really needed here, since the true Python-implementaton signature (start_or_stop, stop_if_needed=None, step=1, /) is definitely too baroque for the doc.

Given your approval, I will merge this and backport (as Serhiy plans to backport his changes).

:noindex:

Rather than being a function, :class:`range` is actually an immutable
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