Metaclass Basic Example Dry Run in PYTHON

Metaclass Basic Example 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.

Metaclass Basic Example Program Code

class UpperAttrMetaclass(type):
    def __new__(cls, name, bases, dct):
        upper_attr = {}
        for name_key, val in dct.items():
            if not name_key.startswith('__'):
                upper_attr[name_key.upper()] = val
            else:
                upper_attr[name_key] = val
        return super().__new__(cls, name, bases, upper_attr)

class Client(metaclass=UpperAttrMetaclass):
    name = "Vignaankosh"

c = Client()
print(c.NAME)

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