safe-typing 0.2.3

safe-typing is a module that provides a safe way to access types within the typing/typing_extensions namespaces.

Safe Typing is a module that provides a safe way to access types within the typing namespace. It attempts to import types from the standard typing module first, and if not found, it falls back to the typing_extensions module. If a type is not found in either module, it returns a sentinel value NotFound.

Stop writing this:

import sys 

if sys.version_info >= (3, 8):
    from typing import List, Dict, Tuple
else:
    from typing_extensions import List, Dict, Tuple

Use this instead:

from typing import List as TypingList, Dict as TypingDict
from safe_typing import _no_raise, List, Dict, FooBar, NotFound

# if you import _no_raise sentinel
# it will not raise an error when a name is not found in the module
# it will return a NotFound sentinel.
# otherwise, it will raise an ImportError
# if the name is not found in both typing and typing_extensions.

assert List is TypingList # True
assert Dict is TypingDict # True
assert FooBar is NotFound  # FooBar does not exist in either typing or typing_extensions

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