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gh-104886: Remove deprecated configparser.LegacyInterpolation (#104887)

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Co-authored-by: Victor Stinner <vstinner@python.org>
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Hugo van Kemenade 2023-05-26 09:06:32 +03:00 • committed by GitHub
parent 0242e9a57a
commit 3f9c60f51e
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5 changed files with 12 additions and 91 deletions
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49
Lib/configparser.py
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@ -155,7 +155,7 @@ __all__ = ("NoSectionError", "DuplicateOptionError", "DuplicateSectionError",
"ParsingError", "MissingSectionHeaderError",
"ConfigParser", "RawConfigParser",
"Interpolation", "BasicInterpolation", "ExtendedInterpolation",
"LegacyInterpolation", "SectionProxy", "ConverterMapping",
"SectionProxy", "ConverterMapping",
"DEFAULTSECT", "MAX_INTERPOLATION_DEPTH")
_default_dict = dict
@ -491,53 +491,6 @@ class ExtendedInterpolation(Interpolation):
"found: %r" % (rest,))
class LegacyInterpolation(Interpolation):
"""Deprecated interpolation used in old versions of ConfigParser.
Use BasicInterpolation or ExtendedInterpolation instead."""
_KEYCRE = re.compile(r"%\(([^)]*)\)s|.")
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
warnings.warn(
"LegacyInterpolation has been deprecated since Python 3.2 "
"and will be removed from the configparser module in Python 3.13. "
"Use BasicInterpolation or ExtendedInterpolation instead.",
DeprecationWarning, stacklevel=2
)
def before_get(self, parser, section, option, value, vars):
rawval = value
depth = MAX_INTERPOLATION_DEPTH
while depth: # Loop through this until it's done
depth -= 1
if value and "%(" in value:
replace = functools.partial(self._interpolation_replace,
parser=parser)
value = self._KEYCRE.sub(replace, value)
try:
value = value % vars
except KeyError as e:
raise InterpolationMissingOptionError(
option, section, rawval, e.args[0]) from None
else:
break
if value and "%(" in value:
raise InterpolationDepthError(option, section, rawval)
return value
def before_set(self, parser, section, option, value):
return value
@staticmethod
def _interpolation_replace(match, parser):
s = match.group(1)
if s is None:
return match.group()
else:
return "%%(%s)s" % parser.optionxform(s)
class RawConfigParser(MutableMapping):
"""ConfigParser that does not do interpolation."""