Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:06:47) [MSC v.1914 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> s="Python String"
>>> s.upper()
'PYTHON STRING'
>>> s.lower()
'python string'
>>> s.find('i')
10
>>> s.replace('ing','gni')
'Python Strgni'
>>> s.split(' ')
['Python', 'String']
>>> 
