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How to Parse Function Signatures in Python with inspect

Extract a function's parameter names, kinds, defaults, annotations, and return type using Python's built-in inspect module.

inspect function signature introspection

Python

import inspect

def example_function(a: int, b: str = "default", *args, c: float = 1.5, **kwargs) -> bool:
    """An example function with various parameter types."""
    return True

def parse_signature(func):
    """Parse a function's signature using the inspect module."""
    sig = inspect.signature(func)
    param…

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