Function Arguments in Python

Function Arguments in Python — a practical guide to Python function arguments with clear examples you can reuse in real projects.

Python Tutorial Series (28/95). Prefer one article? Read the complete Python tutorial.

Short description

Defaults make APIs friendlier. Keyword args improve readability at call sites.

Argument styles

def power(base, exp=2):
    return base ** exp

print(power(3))
print(power(2, 5))
print(power(exp=3, base=2))