assignment is unnessary under suppress()
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false-positive
not security
Python
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Description
Maybe a bit of an edge case, but this code gives warning of unnessary assignments:
```
t = "<>"
with suppress(AttributeError):
# Set to type arg.
t = cls = get_args(self.__orig_class__)[0]
# If a class, set to the qualname.
t = cls.__qualname__
```
It should probably recognise that any code in a `suppress()` block may not actually run to completion.
https://lgtm.com/projects/g/aio-libs/aiohttp/snapshot/d6d827d7b26f2a54999f8a150ef230fe627aa435/files/aiohttp/helpers.py?sort=name&dir=ASC&mode=heatmap#x6cb8804f71fae0f2:1
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