LEGB Scopes - AndrewMZ6/python_cheat_sheet GitHub Wiki

The example of how python searches for variable name in his scopes, that are Local, Enclosing, Global, Builtins (LEGB)

x = 'global x'

def h():
	x = 'enclosing x'
	def g():
		x = 'local x'
		print(x)

	g()
	print(x)

h()
print(x)

output

local x
enclosing x
global x