Q7: How do *args and **kwargs function in Python signatures?
*args: Captures variable positional parameters as a Tuple.**kwargs: Captures variable keyword parameters as a Dictionary. Allow passing arbitrary parameter lists to functions or forwarding arguments in wrapper functions.
Forwarding Arguments via Wrapper
def logger(func):
def wrapper(*args, **kwargs):
print(f"Calling {func.__name__} with {args} and {kwargs}")
return func(*args, **kwargs) # Unpacks parameters seamlessly
return wrapper💡 *args and **kwargs capture and forward arbitrary parameters to the target function.
Key Takeaways
*argscollects positional arguments into a tuple.**kwargscollects keyword arguments into a dictionary.
Knowledge Check
What type of data structure is *args stored as inside function scope?