Basic decorator (logging wrapper) Dry Run in PYTHON

Basic decorator (logging wrapper) is an interactive PYTHON dry run visualizer from the Advanced programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Basic decorator (logging wrapper) Program Code

def logger(func):
    def wrapper(*args, **kwargs):
        print(f"Calling {func.__name__} with {args}")
        result = func(*args, **kwargs)
        print(f"Returned: {result}")
        return result
    return wrapper

@logger
def add(a, b):
    return a + b

add(4, 7)

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