10000 Mypy crashes with 1.11.1 version and Pydantic 1.10.11 · Issue #10129 · pydantic/pydantic · GitHub
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Mypy crashes with 1.11.1 version and Pydantic 1.10.11 #10129

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OmerFI opened this issue Aug 14, 2024 · 2 comments
Closed
5 of 15 tasks

Mypy crashes with 1.11.1 version and Pydantic 1.10.11 #10129

OmerFI opened this issue Aug 14, 2024 · 2 comments
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bug V1 Bug related to Pydantic V1.X pending Is unconfirmed

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@OmerFI
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OmerFI commented Aug 14, 2024

Initial Checks

  • I have searched GitHub for a duplicate issue and I'm sure this is something new
  • I have searched Google & StackOverflow for a solution and couldn't find anything
  • I have read and followed the docs and still think this is a bug
  • I am confident that the issue is with pydantic (not my code, or another library in the ecosystem like FastAPI or mypy)

Description

Crash Report

Updated mypy to 1.11.1 version. Run mypy and faced with error.
It doesn't crash with mypy 1.10.1

Traceback

❯ mypy xxx/ --show-traceback
/home/omerfi/xxx/.venv/lib/python3.10/site-packages/pydantic/env_settings.py:23: error: INTERNAL ERROR -- Please try using mypy master on GitHub:
https://mypy.readthedocs.io/en/stable/common_issues.html#using-a-development-mypy-build
Please report a bug at https://github.com/python/mypy/issues
version: 1.11.1
Traceback (most recent call last):
  File "mypy/semanal.py", line 7092, in accept
  File "mypy/nodes.py", line 1183, in accept
  File "mypy/semanal.py", line 1700, in visit_class_def
  File "mypy/semanal.py", line 1891, in analyze_class
  File "mypy/semanal.py", line 1925, in analyze_class_body_common
  File "mypy/semanal.py", line 2010, in apply_class_plugin_hooks
  File "pydantic/mypy.py", line 154, in pydantic.mypy.PydanticPlugin._pydantic_model_class_maker_callback
  File "pydantic/mypy.py", line 317, in pydantic.mypy.PydanticModelTransformer.transform
  File "pydantic/mypy.py", line 497, in pydantic.mypy.PydanticModelTransformer.add_construct_method
  File "mypy/types.py", line 607, in __init__
TypeError: mypy.types.TypeVarId object expected; got int
/home/omerfi/xxx/.venv/lib/python3.10/site-packages/pydantic/env_settings.py:23: : note: use --pdb to drop into pdb

To Reproduce

I created a POC repository. You can follow the instructions in the README and face the error yourself: https://github.com/OmerFI/mypyfailproject

Your Environment

NOTE

I actually opened an issue with the same description in mypy repository and they said it's a pydantic issue: python/mypy#17671

Example Code

# check https://github.com/OmerFI/mypyfailproject

Python, Pydantic & OS Version

pydantic version: 1.10.11
            pydantic compiled: True
                 install path: /home/omerfi/mypyfailproject/.venv/lib/python3.10/site-packages/pydantic
               python version: 3.10.13 (main, Dec  5 2023, 01:05:27) [GCC 11.4.0]
                     platform: Linux-5.15.153.1-microsoft-standard-WSL2-x86_64-with-glibc2.35
     optional deps. installed: ['typing-extensions']

Affected Components
@OmerFI OmerFI added bug V1 Bug related to Pydantic V1.X pending Is unconfirmed labels Aug 14, 2024
@Viicos
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Viicos commented Aug 14, 2024

This was fixed in Pydantic 1.10.16 (see #9586).

@Viicos Viicos closed this as completed Aug 14, 2024
@OmerFI
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OmerFI commented Aug 14, 2024

Thank you 🚀🤩

Gandalf-the-Grey pushed a commit to openhive-network/schemas that referenced this issue Sep 16, 2024
@mzebrak
Bump pydantic to the latest patch fix of 1.10.18
c0550c1 
For example it fixes the issue with using pydantic
with a newer versionf of mypy.
See: pydantic/pydantic#10129
@brianschubert brianschubert mentioned this issue May 1, 2025
Closed
@anshbansal anshbansal mentioned this issue May 2, 2025
Merged
@ExcaliburZero ExcaliburZero mentioned this issue May 16, 2025
Closed
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