diff options
| -rw-r--r-- | Doc/library/configparser.rst | 8 | ||||
| -rw-r--r-- | Lib/configparser.py | 13 | ||||
| -rw-r--r-- | Lib/test/test_cfgparser.py | 27 |
3 files changed, 47 insertions, 1 deletions
diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst index 958375b..0b8212c 100644 --- a/Doc/library/configparser.rst +++ b/Doc/library/configparser.rst @@ -389,7 +389,13 @@ However, there are a few differences that should be taken into account: the default value to be visible again. Trying to delete a default value causes a ``KeyError``. -* Trying to delete the ``DEFAULTSECT`` raises ``ValueError``. +* ``DEFAULTSECT`` cannot be removed from the parser: + + * trying to delete it raises ``ValueError``, + + * ``parser.clear()`` leaves it intact, + + * ``parser.popitem()`` never returns it. * ``parser.get(section, option, **kwargs)`` - the second argument is **not** a fallback value. Note however that the section-level ``get()`` methods are diff --git a/Lib/configparser.py b/Lib/configparser.py index 06d594a..243efec 100644 --- a/Lib/configparser.py +++ b/Lib/configparser.py @@ -851,6 +851,19 @@ class RawConfigParser(MutableMapping): value_getter = lambda option: d[option] return [(option, value_getter(option)) for option in d.keys()] + def popitem(self): + """Remove a section from the parser and return it as + a (section_name, section_proxy) tuple. If no section is present, raise + KeyError. + + The section DEFAULT is never returned because it cannot be removed. + """ + for key in self.sections(): + value = self[key] + del self[key] + return key, value + raise KeyError + def optionxform(self, optionstr): return optionstr.lower() diff --git a/Lib/test/test_cfgparser.py b/Lib/test/test_cfgparser.py index a6e9050..7a9e8a8 100644 --- a/Lib/test/test_cfgparser.py +++ b/Lib/test/test_cfgparser.py @@ -770,6 +770,33 @@ boolean {0[0]} NO with self.assertRaises(configparser.NoSectionError): cf.items("no such section") + def test_popitem(self): + cf = self.fromstring(""" + [section1] + name1 {0[0]} value1 + [section2] + name2 {0[0]} value2 + [section3] + name3 {0[0]} value3 + """.format(self.delimiters), defaults={"default": "<default>"}) + self.assertEqual(cf.popitem()[0], 'section1') + self.assertEqual(cf.popitem()[0], 'section2') + self.assertEqual(cf.popitem()[0], 'section3') + with self.assertRaises(KeyError): + cf.popitem() + + def test_clear(self): + cf = self.newconfig({"foo": "Bar"}) + self.assertEqual( + cf.get(self.default_section, "Foo"), "Bar", + "could not locate option, expecting case-insensitive option names") + cf['zing'] = {'option1': 'value1', 'option2': 'value2'} + self.assertEqual(cf.sections(), ['zing']) + self.assertEqual(set(cf['zing'].keys()), {'option1', 'option2', 'foo'}) + cf.clear() + self.assertEqual(set(cf.sections()), set()) + self.assertEqual(set(cf[self.default_section].keys()), {'foo'}) + class StrictTestCase(BasicTestCase): config_class = configparser.RawConfigParser |