The extraordinary short guide to Pythons crazy scoping rules .Variable Scope in Python
It’s obvious that you cannot access a variable before it was declared. But if it was declared inside a loop, can you access it outside a loop? If it was declared in a function, can you access the variable outside of the function?
This kind of “variable lifetime” is known as scoping. After reading this article, you will know the scoping rules of Python. Let’s start!
Python has 3 scopes:
locals(). Within the main script,
locals() == globals()
You can see all three in action here:
print(min([1, 2, 3])) def foo(): min = lambda n: "enclosing" def bar(): """Bar is enclosed by 'foo'""" print(min([1, 2, 3])) def baz(): """Baz is also enclosed by 'foo'""" min = lambda n: "local" print(min([1, 2, 3])) bar() baz() min = lambda n: "global" print(min([1, 2, 3])) foo()
Guide to Python Programming Language
Python is an interpreted, high-level, powerful general-purpose programming language. You may ask, Python’s a snake right? and Why is this programming language named after it?
Python Hello World Program - Your first step towards Python world. Learn how to create the Hello World Python program in PyCharm.
Python Programming Tutorials For Beginners
Today you're going to learn how to use Python programming in a way that can ultimately save a lot of space on your drive by removing all the duplicates. We gonna use Python OS remove( ) method to remove the duplicates on our drive. Well, that's simple you just call remove ( ) with a parameter of the name of the file you wanna remove done.