Mastering Python Metaclasses: Advanced Object-Oriented Techniques by Publishing Dargslan

Author:Publishing, Dargslan
Language: eng
Format: epub
Published: 2024-11-21T00:00:00+00:00

return super().__new__(cls, name, bases, attrs)

class ValidClass(metaclass=CodeValidator):

"""This is a valid class."""

def valid_method(self):

pass

try:

class invalidClass(metaclass=CodeValidator):

def InvalidMethod(self):

pass

except NameError as e:

print(f"Error: {e}")

try:

class NoDocString(metaclass=CodeValidator):

pass

except ValueError as e:

print(f"Error: {e}")

In this example, CodeValidator is a metaclass that enforces several coding standards:

Class names must start with an uppercase letter

Method names must be lowercase

Classes must have a docstring

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