python trim whitespace from end of string

'     hello world!    '.strip()
'hello world!'


'     hello world!    '.lstrip()
'hello world!    '

'     hello world!    '.rstrip()
'    hello world!'

>>> "    xyz     ".rstrip()
'    xyz'

s1 = '  abc  '

print(f'String =\'{s1}\'')

print(f'After Removing Leading Whitespaces String =\'{s1.lstrip()}\'')

print(f'After Removing Trailing Whitespaces String =\'{s1.rstrip()}\'')

print(f'After Trimming Whitespaces String =\'{s1.strip()}\'')