X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=type_utils.py;h=e760dba90412355579ea042bf0fa760960d644c5;hb=1263057778bbf2229f03b1864428319b0918aaff;hp=5e4187ec03658de957983a705349dda80876cd6d;hpb=532df2c5b57c7517dfb3dddd8c1358fbadf8baf3;p=python_utils.git diff --git a/type_utils.py b/type_utils.py index 5e4187e..e760dba 100644 --- a/type_utils.py +++ b/type_utils.py @@ -12,9 +12,16 @@ logger = logging.getLogger(__name__) def unwrap_optional(x: Optional[Any]) -> Any: """Unwrap an Optional[Type] argument returning a Type value back. - If the Optional[Type] argument is None, however, raise an exception. - Use this to satisfy most type checkers that a value that could - be None isn't so as to drop the Optional typing hint. + Use this to satisfy most type checkers that a value that could be + None isn't so as to drop the Optional typing hint. + + Args: + x: an Optional[Type] argument + + Returns: + If the Optional[Type] argument is non-None, return it. + If the Optional[Type] argument is None, however, raise an + exception. >>> x: Optional[bool] = True >>> unwrap_optional(x) @@ -25,7 +32,6 @@ def unwrap_optional(x: Optional[Any]) -> Any: Traceback (most recent call last): ... AssertionError: Argument to unwrap_optional was unexpectedly None - """ if x is None: msg = 'Argument to unwrap_optional was unexpectedly None'