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gh-130664: specify how thousands separators are used with 0-padding #131030

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@skirpichev skirpichev commented Mar 10, 2025

@skirpichev skirpichev added needs backport to 3.12 only security fixes needs backport to 3.13 bugs and security fixes labels Apr 6, 2025
@skirpichev skirpichev requested a review from effigies April 6, 2025 11:28
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
@skirpichev skirpichev removed the needs backport to 3.12 only security fixes label Apr 8, 2025
@serhiy-storchaka serhiy-storchaka added the needs backport to 3.14 bugs and security fixes label May 8, 2025
@skirpichev skirpichev requested a review from picnixz July 19, 2025 05:37
@@ -426,7 +426,9 @@ If not specified, then the field width will be determined by the content.
When no explicit alignment is given, preceding the *width* field by a zero
(``'0'``) character enables sign-aware zero-padding for numeric types,
excluding :class:`complex`. This is equivalent to a *fill* character of
``'0'`` with an *alignment* type of ``'='``.
``'0'`` with an *alignment* type of ``'='``. If digit group separators of the
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I'm a bit surprised that "digit group separator" is mentioned here while we only mention it in the "grouping option" paragraph below. Maybe we should mention it at that place or mention here that this will be introduced below?

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Since the different parts of the format are interconnected, there may be references to options described in details below.

But I think that we should unify wording and avoid repetition of what specifies the grouping option. "If the grouping option for the integral part is used, a digit group separator is also inserted between leading zeros."

@skirpichev skirpichev requested a review from picnixz August 2, 2025 13:35
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