Larry Hastings <[email protected]> added the comment:
The difference between eval_str=True and eval_str=ONLY_IF_STRINGIZED:
def foo(a:int, b:"howdy howdy"): ...
inspect.get_annotations(foo, eval_str=True) throws an exception.
inspect.get_annotations(foo, eval_str=ONLY_IF_STRINGIZED) returns {'a': int, b:
'howdy howdy'}
Type hints have a convention that string annotations are a "forward
declaration" and should be eval()uated. Annotations don't have such a
convention--a string is a legal annotation, and is not required to be valid
Python.
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<https://bugs.python.org/issue43817>
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