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[3.13] gh-130941: Fix configparser parsing values with allow_no_value and interpolation set (GH-130949) (#132588)

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gh-130941: Fix `configparser` parsing values with `allow_no_value` and `interpolation` set (GH-130949)
(cherry picked from commit c35c7353eb)

Co-authored-by: sobolevn <mail@sobolevn.me>
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Miss Islington (bot) 2025-04-16 14:19:46 +02:00 • committed by GitHub
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commit ee8f681252
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Lib/configparser.py
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@ -526,6 +526,8 @@ def _interpolate_some(self, parser, option, accum, rest, section, map,
except (KeyError, NoSectionError, NoOptionError):
raise InterpolationMissingOptionError(
option, section, rawval, ":".join(path)) from None
if v is None:
continue
if "$" in v:
self._interpolate_some(parser, opt, accum, v, sect,
dict(parser.items(sect, raw=True)),