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python_basics/namespaces/README.md
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@ -14,7 +14,7 @@ Shortened quotes from [https://docs.python.org/3/tutorial/classes.html](https://
## [Scopes and Namespaces Example](https://docs.python.org/3/tutorial/classes.html#scopes-and-namespaces-example)
> This is an example demonstrating how to reference the different scopes and namespaces, and how [global](https://docs.python.org/3/reference/simple_stmts.html#global)https://docs.python.org/3/reference/simple_stmts.html#global and [nonlocal](https://docs.python.org/3/reference/simple_stmts.html#nonlocal)https://docs.python.org/3/reference/simple_stmts.html#nonlocal affect variable binding:
> This is an example demonstrating how to reference the different scopes and namespaces, and how [global](https://docs.python.org/3/reference/simple_stmts.html#global) and [nonlocal](https://docs.python.org/3/reference/simple_stmts.html#nonlocal) affect variable binding:
```python
@ -49,17 +49,17 @@ print("In global scope:", spam) # -> In global scope: global spam
Shortened quotes from [https://docs.python.org/3/tutorial/classes.html](https://docs.python.org/3/tutorial/classes.html)
> **Namespaces** are created at different moments and have different lifetimes. The namespace containing the built-in names is created when the Python interpreter starts up, and is never deleted. The global namespace for a module is created when the module definition is read in; normally, module namespaces also last until the interpreter quits.​
> **Namespaces** are created at different moments and have different lifetimes. The namespace containing the built-in names is created when the Python interpreter starts up, and is never deleted. The global namespace for a module is created when the module definition is read in; normally, module namespaces also last until the interpreter quits.
>
> The **local namespace** for a function is created when the function is called, and deleted when the function returns or raises an exception that is not handled within the function.
>
> A **scope** is a textual region of a Python program where a namespace is directly accessible.
>
​> The **local namespace** for a function is created when the function is called, and deleted when the function returns or raises an exception that is not handled within the function.​
>
​> A **scope** is a textual region of a Python program where a namespace is directly accessible.​
>
​> Although scopes are determined statically, they are used dynamically. At any time during execution, there are 3 or 4 nested scopes whose namespaces are directly accessible:​
> * the innermost scope, which is searched first, contains the local names​
> * the scopes of any enclosing functions, which are searched starting with the nearest enclosing scope, contains non-local, but also non-global names​
> * the next-to-last scope contains the current module’s global names​
> * the outermost scope (searched last) is the namespace containing built-in names​
> Although scopes are determined statically, they are used dynamically. At any time during execution, there are 3 or 4 nested scopes whose namespaces are directly accessible:​
> * the innermost scope, which is searched first, contains the local names
> * the scopes of any enclosing functions, which are searched starting with the nearest enclosing scope, contains non-local, but also non-global names
> * the next-to-last scope contains the current module’s global names
> * the outermost scope (searched last) is the namespace containing built-in names
## [The global statement](https://docs.python.org/3/reference/simple_stmts.html#the-global-statement)