strip
Strip removes beginning and ending whitespace characters (spaces, tabs, and line breaks), useful for reading lines of a textfile.
extracting text without surrounding spaces
>>> ' enclosed text '.strip()
'enclosed text'
define own characters to get removed
>>> ',A,B,C,,,,,'.strip(',')
'A,B,C'
remove only from one side: left (lstrip) or right (rstrip)
>>> '0001230'.lstrip('0')
'1230'
for removing prefix or suffix, better using 'replace'
>>> 'www.example.com'.replace('www.','')
'example.com'
https://docs.python.org/3.5/library/stdtypes.html?highlight=strip#str.strip