Error importing plugin ... could not convert string to float

[Zeckie]

Describe the problem, ie expected/actual result (if it's not blatantly obvious)

Attempting to use pydantic mypy plugin gives error pyproject.toml:1: error: Error importing plugin "pydantic.mypy": could not convert string to float: '1.2.2'

To reproduce

C:\Users\Zeckie\basedmypy-pydantic>poetry show -t --ansi
mypy 0.931 Optional static typing for Python
├── mypy-extensions >=0.4.3
├── tomli >=1.1.0
└── typing-extensions >=3.10
pydantic 1.9.0 Data validation and settings management using python 3.6 type hinting
└── typing-extensions >=3.7.4.3

C:\Users\Zeckie\basedmypy-pydantic>mypy .
Success: no issues found in 1 source file

CC:\Users\Zeckie\basedmypy-pydantic>poetry remove -D mypy
Updating dependencies
Resolving dependencies...

Writing lock file

Package operations: 0 installs, 0 updates, 3 removals

  • Removing mypy (0.931)
  • Removing mypy-extensions (0.4.3)
  • Removing tomli (2.0.0)

C:\Users\Zeckie\basedmypy-pydantic>poetry add -D basedmypy
Using version ^1.2.2 for basedmypy

Updating dependencies
Resolving dependencies...

Writing lock file

Package operations: 3 installs, 0 updates, 0 removals

  • Installing mypy-extensions (0.4.3)
  • Installing tomli (2.0.0)
  • Installing basedmypy (1.2.2)

C:\Users\Zeckie\basedmypy-pydantic>poetry show -t --ansi
basedmypy 1.2.2 Based static typing for Python
├── mypy-extensions >=0.4.3
├── tomli >=1.1.0
└── typing-extensions >=3.10
pydantic 1.9.0 Data validation and settings management using python 3.6 type hinting
└── typing-extensions >=3.7.4.3

C:\Users\Zeckie\basedmypy-pydantic>mypy .
pyproject.toml:1: error: Error importing plugin "pydantic.mypy": could not convert string to float: '1.2.2'  [misc]
Found 1 error in 1 file (errors prevented further checking)

C:\Users\Zeckie\basedmypy-pydantic>

Basedmypy version

basedmypy 1.2.2 Based on mypy 0.940+dev (fa16759d)

Command-line flags

No response

Configuration options from pyptoject.toml (and other config files)

[tool.poetry]
name = "example"
version = "1"
description = "Example"
authors = []

[tool.poetry.dependencies]
python = "3.10.2"
pydantic = "1.9.0"

[tool.poetry.dev-dependencies]
#mypy = "0.931"
basedmypy = "^1.2.2"

[tool.mypy]
plugins = "pydantic.mypy"

Python version used

3.10.2

Operating system and version

Windows

[KotlinIsland]

Thanks for the report! This is an issue with pydantic and is being addressed here. In the meantime you can use this version of pydantic where the issue is resolved.

[Zeckie]

But is basedmypy still reporting (to mypy plugins) that it is mypy 1.2.2 instead of 0.940+dev?

[KotlinIsland]

Yeah that's true. #174 has some brainstorming of how to best handle it.