Bug in string.lstrip?

[Brian]

Hello - has anyone else had trouble with string.lstrip stripping too 
much? Here's what I get (Python 2.3.4):

 >>> import string
 >>> string.lstrip("test/one/two/a.b.c", "test/one/")
'wo/a.b.c'
 >>> string.lstrip("test/one/two/a.b.c", "test/one")
'wo/a.b.c'
 >>> string.lstrip("test/one/two/a.b.c", "test/one/tw")
'a.b.c'
 >>>

Similar things happened with the strip() string method. Am I missing 
something, or should I file a bug report?

Thanks,


Brian