Current File : //lib/python3/dist-packages/mypy/split_namespace.py
"""Split namespace for argparse to allow separating options by prefix.
We use this to direct some options to an Options object and some to a
regular namespace.
"""
# In its own file largely because mypyc doesn't support its use of
# __getattr__/__setattr__ and has some issues with __dict__
import argparse
from typing import Tuple, Any
class SplitNamespace(argparse.Namespace):
def __init__(self, standard_namespace: object, alt_namespace: object, alt_prefix: str) -> None:
self.__dict__['_standard_namespace'] = standard_namespace
self.__dict__['_alt_namespace'] = alt_namespace
self.__dict__['_alt_prefix'] = alt_prefix
def _get(self) -> Tuple[Any, Any]:
return (self._standard_namespace, self._alt_namespace)
def __setattr__(self, name: str, value: Any) -> None:
if name.startswith(self._alt_prefix):
setattr(self._alt_namespace, name[len(self._alt_prefix):], value)
else:
setattr(self._standard_namespace, name, value)
def __getattr__(self, name: str) -> Any:
if name.startswith(self._alt_prefix):
return getattr(self._alt_namespace, name[len(self._alt_prefix):])
else:
return getattr(self._standard_namespace, name)
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