amended type definition for ParserMethod

[pratyush618]

PR: Update ParserMethod Type Alias for More Flexibility

Summary:

This PR updates the ParserMethod type alias to Callable[..., object], which allows it to handle functions with any number of arguments and any return type. This change makes the type more flexible and compatible with a wider range of functions in the codebase.

What Changed:

• Old Type Alias: ParserMethod = typing.Callable (incomplete).
• New Type Alias: ParserMethod = Callable[..., object]
  • The new type definition allows:
  • Any number of arguments (...).
  • Arguments of any type.
  • Return type of any type (object).

Why This Change:

The old type alias was too general and not fully defined. By switching to Callable[..., object], we ensure better flexibility for callables, supporting a wider variety of function signatures with different argument types and return types.

Impact:

• This change doesn’t affect the existing functionality, but it makes type checking more precise for functions with dynamic arguments or return types.
• It ensures we can use ParserMethod for more generic functions without any issues.

[sloria]

Isn't Callable effectively the same as Callable[..., Any]? Or am I misunderstood?

[sloria]

Confirmed. See PEP 484:

As well, a bare Callable in an annotation is equivalent to Callable[..., Any]

So this change shouldn't be necessary. Closing for now

[pratyush618]

have you though of writing environs using pydantic?