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AttributeError: attribute 'type_vars' of 'TypeInfo' undefined #9081

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avatar-lavventura opened this issue Jul 1, 2020 · 4 comments
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AttributeError: attribute 'type_vars' of 'TypeInfo' undefined #9081

avatar-lavventura opened this issue Jul 1, 2020 · 4 comments

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@avatar-lavventura
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avatar-lavventura commented Jul 1, 2020 •
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I am using the master mypy. I don't know why but I keep getting followinger error.

❯ mypy end_code.py --show-traceback
eblocbroker/transfer_ownership.py:45: error: INTERNAL ERROR -- Please try using mypy master on Github:
https://mypy.rtfd.io/en/latest/common_issues.html#using-a-development-mypy-build
Please report a bug at https://github.com/python/mypy/issues
version: 0.782
Traceback (most recent call last):
  File "mypy/checkexpr.py", line 3761, in accept
  File "mypy/nodes.py", line 1496, in accept
  File "mypy/checkexpr.py", line 1990, in visit_member_expr
  File "mypy/checkexpr.py", line 2008, in analyze_ordinary_member_access
  File "mypy/checkmember.py", line 126, in analyze_member_access
  File "mypy/checkmember.py", line 143, in _analyze_member_access
  File "mypy/checkmember.py", line 219, in analyze_instance_member_access
  File "mypy/maptype.py", line 20, in map_instance_to_supertype
AttributeError: attribute 'type_vars' of 'TypeInfo' undefined
eblocbroker/transfer_ownership.py:45: : note: use --pdb to drop into pdb
@avatar-lavventura
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On a subfolder i had __init__.py file. Removing it solved the issue.

@JelleZijlstra
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hm mypy shouldn't crash though, no matter what you're doing. Do you have a minimal way to reproduce the crash?

@JelleZijlstra JelleZijlstra reopened this Jul 1, 2020
@avatar-lavventura
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Sorry the repo I was working on was get overwritten, I tried to re-create the problem but I couldn't :-(

I will update you if I can able to re-generate it.

@hauntsaninja hauntsaninja mentioned this issue Jan 7, 2022
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@hauntsaninja
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Closing since we don't have a repro and we've fixed bugs that could account for this

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@JelleZijlstra @hauntsaninja @avatar-lavventura