Answers for "python regular expression for removing whitespace from a string"

python remove whitespace from start of string

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


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

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

regular expression to remove space python

r = re.compile(r"^s+", re.MULTILINE)
r.sub("", "an bn c") # "anbnc"

# or without compiling (only possible for Python 2.7+ because the flags option
# didn't exist in earlier versions of re.sub)

re.sub(r"^s+", "", "an bn c", flags = re.MULTILINE)

# but mind that s includes newlines:
r.sub("", "annnn bn c") # "anbnc"