Python namespace and local scope

sure! here is an informative tutorial about python namespace and local scope:

namespace in python:
- a namespace is a mapping from names to objects. it is used to avoid naming conflicts and provides a way to organize and manage names in a program.
- namespaces in python can be at different levels, such as global namespace, local namespace, built-in namespace, and class namespace.

local scope in python:
- local scope refers to the visibility of names within a specific block of code, such as a function or a class method.
- variables defined within a function have local scope and are only accessible within that function unless explicitly declared as global.

example of python namespace and local scope:

in the above example, `global_var` is defined in the global namespace and can be accessed from within the function `my_function`. however, `local_var` is defined within the function and is not accessible outside of it.

understanding namespaces and local scope is essential for writing clean and organized code in python. it helps in avoiding naming conflicts and improves code readability and maintainability.

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