Context Manager using Class (__enter__ and __exit__) Dry Run in PYTHON

Context Manager using Class (__enter__ and __exit__) is an interactive PYTHON dry run visualizer from the Advancedpython 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.

Context Manager using Class (__enter__ and __exit__) Program Code

class ResourceHandler:
    def __enter__(self):
        print("Acquiring resource...")
        return "RESOURCE"
        
    def __exit__(self, exc_type, exc_val, exc_tb):
        print("Releasing resource...")
        return False  # Do not suppress exceptions

with ResourceHandler() as res:
    print(f"Using: {res}")

View the complete Advancedpython programs page.