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Add new Python 3.14 argparse.ArgumentParser constructor parameters #13947

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Add new Python 3.14 argparse.ArgumentParser constructor parameters #13947

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6ffa4ab
Add new Python 3.14 `argparse.ArgumentParser` parameters
edgarrmondragon May 6, 2025
271997f
Annotate instance attributes
edgarrmondragon May 6, 2025
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85 changes: 69 additions & 16 deletions stdlib/argparse.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -123,29 +123,56 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
fromfile_prefix_chars: str | None
add_help: bool
allow_abbrev: bool
exit_on_error: bool

if sys.version_info >= (3, 14):
suggest_on_error: bool
color: bool

# undocumented
_positionals: _ArgumentGroup
_optionals: _ArgumentGroup
_subparsers: _ArgumentGroup | None

# Note: the constructor arguments are also used in _SubParsersAction.add_parser.
def __init__(
self,
prog: str | None = None,
usage: str | None = None,
description: str | None = None,
epilog: str | None = None,
parents: Sequence[ArgumentParser] = [],
formatter_class: _FormatterClass = ...,
prefix_chars: str = "-",
fromfile_prefix_chars: str | None = None,
argument_default: Any = None,
conflict_handler: str = "error",
add_help: bool = True,
allow_abbrev: bool = True,
exit_on_error: bool = True,
) -> None: ...
if sys.version_info >= (3, 14):
def __init__(
self,
prog: str | None = None,
usage: str | None = None,
description: str | None = None,
epilog: str | None = None,
parents: Sequence[ArgumentParser] = [],
formatter_class: _FormatterClass = ...,
prefix_chars: str = "-",
fromfile_prefix_chars: str | None = None,
argument_default: Any = None,
conflict_handler: str = "error",
add_help: bool = True,
allow_abbrev: bool = True,
exit_on_error: bool = True,
*,
suggest_on_error: bool = False,
color: bool = False,
) -> None: ...
else:
def __init__(
self,
prog: str | None = None,
usage: str | None = None,
description: str | None = None,
epilog: str | None = None,
parents: Sequence[ArgumentParser] = [],
formatter_class: _FormatterClass = ...,
prefix_chars: str = "-",
fromfile_prefix_chars: str | None = None,
argument_default: Any = None,
conflict_handler: str = "error",
add_help: bool = True,
allow_abbrev: bool = True,
exit_on_error: bool = True,
) -> None: ...

@overload
def parse_args(self, args: Sequence[str] | None = None, namespace: None = None) -> Namespace: ...
@overload
Expand Down Expand Up @@ -668,6 +695,32 @@ class _SubParsersAction(Action, Generic[_ArgumentParserT]):

# Note: `add_parser` accepts all kwargs of `ArgumentParser.__init__`. It also
# accepts its own `help` and `aliases` kwargs.
if sys.version_info >= (3, 14):
def add_parser(
self,
name: str,
*,
deprecated: bool = False,
help: str | None = ...,
aliases: Sequence[str] = ...,
# Kwargs from ArgumentParser constructor
prog: str | None = ...,
usage: str | None = ...,
description: str | None = ...,
epilog: str | None = ...,
parents: Sequence[_ArgumentParserT] = ...,
formatter_class: _FormatterClass = ...,
prefix_chars: str = ...,
fromfile_prefix_chars: str | None = ...,
argument_default: Any = ...,
conflict_handler: str = ...,
add_help: bool = ...,
allow_abbrev: bool = ...,
exit_on_error: bool = ...,
suggest_on_error: bool = ...,
color: bool = ...,
**kwargs: Any, # Accepting any additional kwargs for custom parser classes
) -> _ArgumentParserT: ...
if sys.version_info >= (3, 13):
def add_parser(
self,
Expand Down