stdlib: add argument default values (#9501)

stdlib/configparser.pyi

@@ -106,11 +106,11 @@ class RawConfigParser(_Parser):
     def has_section(self, section: str) -> bool: ...
     def options(self, section: str) -> list[str]: ...
     def has_option(self, section: str, option: str) -> bool: ...
-    def read(self, filenames: StrOrBytesPath | Iterable[StrOrBytesPath], encoding: str | None = ...) -> list[str]: ...
-    def read_file(self, f: Iterable[str], source: str | None = ...) -> None: ...
-    def read_string(self, string: str, source: str = ...) -> None: ...
-    def read_dict(self, dictionary: Mapping[str, Mapping[str, Any]], source: str = ...) -> None: ...
-    def readfp(self, fp: Iterable[str], filename: str | None = ...) -> None: ...
+    def read(self, filenames: StrOrBytesPath | Iterable[StrOrBytesPath], encoding: str | None = None) -> list[str]: ...
+    def read_file(self, f: Iterable[str], source: str | None = None) -> None: ...
+    def read_string(self, string: str, source: str = "<string>") -> None: ...
+    def read_dict(self, dictionary: Mapping[str, Mapping[str, Any]], source: str = "<dict>") -> None: ...
+    def readfp(self, fp: Iterable[str], filename: str | None = None) -> None: ...
     # These get* methods are partially applied (with the same names) in
     # SectionProxy; the stubs should be kept updated together
     @overload
@@ -137,8 +137,8 @@ class RawConfigParser(_Parser):
         option: str,
         conv: Callable[[str], _T],
         *,
-        raw: bool = ...,
-        vars: _Section | None = ...,
+        raw: bool = False,
+        vars: _Section | None = None,
         fallback: _T = ...,
     ) -> _T: ...
     # This is incompatible with MutableMapping so we ignore the type
@@ -150,8 +150,8 @@ class RawConfigParser(_Parser):
     def items(self, *, raw: bool = ..., vars: _Section | None = ...) -> ItemsView[str, SectionProxy]: ...
     @overload
     def items(self, section: str, raw: bool = ..., vars: _Section | None = ...) -> list[tuple[str, str]]: ...
-    def set(self, section: str, option: str, value: str | None = ...) -> None: ...
-    def write(self, fp: SupportsWrite[str], space_around_delimiters: bool = ...) -> None: ...
+    def set(self, section: str, option: str, value: str | None = None) -> None: ...
+    def write(self, fp: SupportsWrite[str], space_around_delimiters: bool = True) -> None: ...
     def remove_option(self, section: str, option: str) -> bool: ...
     def remove_section(self, section: str) -> bool: ...
     def optionxform(self, optionstr: str) -> str: ...
@@ -181,11 +181,11 @@ class SectionProxy(MutableMapping[str, str]):
     def get(  # type: ignore[override]
         self,
         option: str,
-        fallback: str | None = ...,
+        fallback: str | None = None,
         *,
-        raw: bool = ...,
-        vars: _Section | None = ...,
-        _impl: Any | None = ...,
+        raw: bool = False,
+        vars: _Section | None = None,
+        _impl: Any | None = None,
         **kwargs: Any,
     ) -> str | Any: ...  # can be None in RawConfigParser's sections
     # These are partially-applied version of the methods with the same names in
@@ -216,7 +216,7 @@ class ConverterMapping(MutableMapping[str, _ConverterCallback | None]):
 
 class Error(Exception):
     message: str
-    def __init__(self, msg: str = ...) -> None: ...
+    def __init__(self, msg: str = "") -> None: ...
 
 class NoSectionError(Error):
     section: str
@@ -226,14 +226,14 @@ class DuplicateSectionError(Error):
     section: str
     source: str | None
     lineno: int | None
-    def __init__(self, section: str, source: str | None = ..., lineno: int | None = ...) -> None: ...
+    def __init__(self, section: str, source: str | None = None, lineno: int | None = None) -> None: ...
 
 class DuplicateOptionError(Error):
     section: str
     option: str
     source: str | None
     lineno: int | None
-    def __init__(self, section: str, option: str, source: str | None = ..., lineno: int | None = ...) -> None: ...
+    def __init__(self, section: str, option: str, source: str | None = None, lineno: int | None = None) -> None: ...
 
 class NoOptionError(Error):
     section: str
@@ -257,7 +257,7 @@ class InterpolationSyntaxError(InterpolationError): ...
 class ParsingError(Error):
     source: str
     errors: list[tuple[int, str]]
-    def __init__(self, source: str | None = ..., filename: str | None = ...) -> None: ...
+    def __init__(self, source: str | None = None, filename: str | None = None) -> None: ...
     def append(self, lineno: int, line: str) -> None: ...
 
 class MissingSectionHeaderError(ParsingError):