Fix #19546: onfigparser exceptions expose implementation details. Patch by Claudiu Popa.
diff --git a/Lib/configparser.py b/Lib/configparser.py
index 4ee8307..5843b0f 100644
--- a/Lib/configparser.py
+++ b/Lib/configparser.py
@@ -410,7 +410,7 @@
v = map[var]
except KeyError:
raise InterpolationMissingOptionError(
- option, section, rest, var)
+ option, section, rest, var) from None
if "%" in v:
self._interpolate_some(parser, option, accum, v,
section, map, depth + 1)
@@ -482,7 +482,7 @@
"More than one ':' found: %r" % (rest,))
except (KeyError, NoSectionError, NoOptionError):
raise InterpolationMissingOptionError(
- option, section, rest, ":".join(path))
+ option, section, rest, ":".join(path)) from None
if "$" in v:
self._interpolate_some(parser, opt, accum, v, sect,
dict(parser.items(sect, raw=True)),
@@ -515,7 +515,7 @@
value = value % vars
except KeyError as e:
raise InterpolationMissingOptionError(
- option, section, rawval, e.args[0])
+ option, section, rawval, e.args[0]) from None
else:
break
if value and "%(" in value:
@@ -647,7 +647,7 @@
try:
opts = self._sections[section].copy()
except KeyError:
- raise NoSectionError(section)
+ raise NoSectionError(section) from None
opts.update(self._defaults)
return list(opts.keys())
@@ -876,7 +876,7 @@
try:
sectdict = self._sections[section]
except KeyError:
- raise NoSectionError(section)
+ raise NoSectionError(section) from None
sectdict[self.optionxform(option)] = value
def write(self, fp, space_around_delimiters=True):
@@ -917,7 +917,7 @@
try:
sectdict = self._sections[section]
except KeyError:
- raise NoSectionError(section)
+ raise NoSectionError(section) from None
option = self.optionxform(option)
existed = option in sectdict
if existed: