get_click_type

Determines and returns the appropriate click.ParamType based on a provided type annotation and parameter metadata. It maps standard Python types, Enums, and Literals to Click-compatible types, including support for ranges, files, and custom parsers.

def get_click_type(
    annotation: Any,
    parameter_info: ParameterInfo
) - > click.ParamType

Determines the appropriate Click parameter type based on a Python type annotation and additional parameter metadata. This function maps standard Python types, Enums, and file-like objects to their corresponding Click validation and conversion logic.

Parameters

Name	Type	Description
annotation	Any	The Python type hint or class used to infer the base Click data type (e.g., int, str, Path, or Enum).
parameter_info	ParameterInfo	An object containing metadata such as min/max ranges, file permissions, date formats, and custom parsers that refine the Click type configuration.

Returns

Type	Description
click.ParamType	A Click parameter type instance configured with validation constraints like ranges, file modes, or choice sets.