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  3. Invalid type hints definitions and usages

Invalid type hints definitions and usages

Last modified: 03 December 2024

Reports invalid usages of type hints.

Example:

from typing import TypeVar

T0 = TypeVar('T1') # Argument of 'TypeVar' must be 'T0'


def b(p: int) -> int:  # Type specified both in a comment and annotation
    # type: (int) -> int
    pass


def c(p1, p2): # Type signature has too many arguments
    # type: (int) -> int
    pass

Available quick-fixes offer various actions. You can rename, remove, or move problematic elements. You can also manually modify type declarations to ensure no warning is shown.

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

PyTypeHints
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Python

Inspection Details

By default bundled with:

CLion 2024.3, IntelliJ IDEA 2024.3, PyCharm 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Python Community Edition, 243.23126