python get a substring given a character code example

Example 1: python get a substring of a string

>>> x = "Hello World!"
>>> x[2:]
'llo World!'
>>> x[:2]
'He'
>>> x[:-2]
'Hello Worl'
>>> x[-2:]
'd!'
>>> x[2:-2]
'llo Worl'

Example 2: how to search for a specific character in a part of a python string

myString = "God is good"

if "o" in myString[0:4]
	print("Working! There is an 'O' in between the G and D of God.")