Merge pull request RustPython#5172 from Blues-star/main

Update `configparser.py` and `test_configparser.py` from CPython v3.12

Author: youknowone

Lib/configparser.py

@@ -59,7 +59,7 @@
         instance. It will be used as the handler for option value
         pre-processing when using getters. RawConfigParser objects don't do
         any sort of interpolation, whereas ConfigParser uses an instance of
-        BasicInterpolation. The library also provides a ``zc.buildbot``
+        BasicInterpolation. The library also provides a ``zc.buildout``
         inspired ExtendedInterpolation implementation.
 
         When `converters` is given, it should be a dictionary where each key
@@ -149,14 +149,14 @@
 import sys
 import warnings
 
-__all__ = ["NoSectionError", "DuplicateOptionError", "DuplicateSectionError",
+__all__ = ("NoSectionError", "DuplicateOptionError", "DuplicateSectionError",
            "NoOptionError", "InterpolationError", "InterpolationDepthError",
            "InterpolationMissingOptionError", "InterpolationSyntaxError",
            "ParsingError", "MissingSectionHeaderError",
-           "ConfigParser", "SafeConfigParser", "RawConfigParser",
+           "ConfigParser", "RawConfigParser",
            "Interpolation", "BasicInterpolation",  "ExtendedInterpolation",
            "LegacyInterpolation", "SectionProxy", "ConverterMapping",
-           "DEFAULTSECT", "MAX_INTERPOLATION_DEPTH"]
+           "DEFAULTSECT", "MAX_INTERPOLATION_DEPTH")
 
 _default_dict = dict
 DEFAULTSECT = "DEFAULT"
@@ -298,41 +298,12 @@ def __init__(self, option, section, rawval):
 class ParsingError(Error):
     """Raised when a configuration file does not follow legal syntax."""
 
-    def __init__(self, source=None, filename=None):
-        # Exactly one of `source'/`filename' arguments has to be given.
-        # `filename' kept for compatibility.
-        if filename and source:
-            raise ValueError("Cannot specify both `filename' and `source'. "
-                             "Use `source'.")
-        elif not filename and not source:
-            raise ValueError("Required argument `source' not given.")
-        elif filename:
-            source = filename
-        Error.__init__(self, 'Source contains parsing errors: %r' % source)
+    def __init__(self, source):
+        super().__init__(f'Source contains parsing errors: {source!r}')
         self.source = source
         self.errors = []
         self.args = (source, )
 
-    @property
-    def filename(self):
-        """Deprecated, use `source'."""
-        warnings.warn(
-            "The 'filename' attribute will be removed in Python 3.12. "
-            "Use 'source' instead.",
-            DeprecationWarning, stacklevel=2
-        )
-        return self.source
-
-    @filename.setter
-    def filename(self, value):
-        """Deprecated, user `source'."""
-        warnings.warn(
-            "The 'filename' attribute will be removed in Python 3.12. "
-            "Use 'source' instead.",
-            DeprecationWarning, stacklevel=2
-        )
-        self.source = value
-
     def append(self, lineno, line):
         self.errors.append((lineno, line))
         self.message += '\n\t[line %2d]: %s' % (lineno, line)
@@ -769,15 +740,6 @@ def read_dict(self, dictionary, source='<dict>'):
                 elements_added.add((section, key))
                 self.set(section, key, value)
 
-    def readfp(self, fp, filename=None):
-        """Deprecated, use read_file instead."""
-        warnings.warn(
-            "This method will be removed in Python 3.12. "
-            "Use 'parser.read_file()' instead.",
-            DeprecationWarning, stacklevel=2
-        )
-        self.read_file(fp, source=filename)
-
     def get(self, section, option, *, raw=False, vars=None, fallback=_UNSET):
         """Get an option value for a given section.
 
@@ -1240,19 +1202,6 @@ def _read_defaults(self, defaults):
             self._interpolation = hold_interpolation
 
 
-class SafeConfigParser(ConfigParser):
-    """ConfigParser alias for backwards compatibility purposes."""
-
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        warnings.warn(
-            "The SafeConfigParser class has been renamed to ConfigParser "
-            "in Python 3.2. This alias will be removed in Python 3.12."
-            " Use ConfigParser directly instead.",
-            DeprecationWarning, stacklevel=2
-        )
-
-
 class SectionProxy(MutableMapping):
     """A proxy for a single section from a parser."""
 

Lib/test/test_configparser.py

@@ -114,7 +114,7 @@ def basic_test(self, cf):
 
         # The use of spaces in the section names serves as a
         # regression test for SourceForge bug #583248:
-        # http://www.python.org/sf/583248
+        # https://bugs.python.org/issue583248
 
         # API access
         eq(cf.get('Foo Bar', 'foo'), 'bar1')
@@ -934,7 +934,7 @@ def test_items(self):
                                  ('name', 'value')])
 
     def test_safe_interpolation(self):
-        # See http://www.python.org/sf/511737
+        # See https://bugs.python.org/issue511737
         cf = self.fromstring("[section]\n"
                              "option1{eq}xxx\n"
                              "option2{eq}%(option1)s/xxx\n"
@@ -1614,23 +1614,12 @@ def test_interpolation_depth_error(self):
         self.assertEqual(error.section, 'section')
 
     def test_parsing_error(self):
-        with self.assertRaises(ValueError) as cm:
+        with self.assertRaises(TypeError) as cm:
             configparser.ParsingError()
-        self.assertEqual(str(cm.exception), "Required argument `source' not "
-                                            "given.")
-        with self.assertRaises(ValueError) as cm:
-            configparser.ParsingError(source='source', filename='filename')
-        self.assertEqual(str(cm.exception), "Cannot specify both `filename' "
-                                            "and `source'. Use `source'.")
-        error = configparser.ParsingError(filename='source')
+        error = configparser.ParsingError(source='source')
+        self.assertEqual(error.source, 'source')
+        error = configparser.ParsingError('source')
         self.assertEqual(error.source, 'source')
-        with warnings.catch_warnings(record=True) as w:
-            warnings.simplefilter("always", DeprecationWarning)
-            self.assertEqual(error.filename, 'source')
-            error.filename = 'filename'
-            self.assertEqual(error.source, 'filename')
-        for warning in w:
-            self.assertTrue(warning.category is DeprecationWarning)
 
     def test_interpolation_validation(self):
         parser = configparser.ConfigParser()
@@ -1649,27 +1638,6 @@ def test_interpolation_validation(self):
         self.assertEqual(str(cm.exception), "bad interpolation variable "
                                             "reference '%(()'")
 
-    def test_readfp_deprecation(self):
-        sio = io.StringIO("""
-        [section]
-        option = value
-        """)
-        parser = configparser.ConfigParser()
-        with warnings.catch_warnings(record=True) as w:
-            warnings.simplefilter("always", DeprecationWarning)
-            parser.readfp(sio, filename='StringIO')
-        for warning in w:
-            self.assertTrue(warning.category is DeprecationWarning)
-        self.assertEqual(len(parser), 2)
-        self.assertEqual(parser['section']['option'], 'value')
-
-    def test_safeconfigparser_deprecation(self):
-        with warnings.catch_warnings(record=True) as w:
-            warnings.simplefilter("always", DeprecationWarning)
-            parser = configparser.SafeConfigParser()
-        for warning in w:
-            self.assertTrue(warning.category is DeprecationWarning)
-
     def test_legacyinterpolation_deprecation(self):
         with warnings.catch_warnings(record=True) as w:
             warnings.simplefilter("always", DeprecationWarning)
@@ -1843,7 +1811,7 @@ def test_parsingerror(self):
             self.assertEqual(e1.source, e2.source)
             self.assertEqual(e1.errors, e2.errors)
             self.assertEqual(repr(e1), repr(e2))
-        e1 = configparser.ParsingError(filename='filename')
+        e1 = configparser.ParsingError('filename')
         e1.append(1, 'line1')
         e1.append(2, 'line2')
         e1.append(3, 'line3')