Incorrect detection of name after failed import

[AlbertoEAF]

The following:

# File bug.py
try:
    import simplejson as json
except (ImportError, SyntaxError):
    import json

results in:

mypy.py:4: error: Name 'json' already defined (by an import)
Found 1 error in 1 file (checked 1 source file)

under mypy 0.8 in Ubuntu18.04 with python 3.7.4. (mypy bug.py)

[pspacek]

FTR this is reproducible using mypy==0.961.

[pspacek]

Hmm, maybe this is a duplicate of much older #1153.

[JelleZijlstra]

Yes, that's basically the same thing.