On Wed, 02 May 2007 13:35:47 -0700, noagbodjivictor wrote: > How to check if a string is empty in python? > if(s == "") ??
In no particular order, all of these methods will work: # test s is equal to another empty string if s == "": # assuming s is a string, test that it is empty if not s: # test s is a string and it is empty if isinstance(s, str) and not s: # test s has length 0 if len(s) == 0: # test the length of s evaluates as false if not len(s): # a long way to test the length of s if s.__len__() < 1: # a stupid way to test s is empty if bool(s) == False: # a REALLY stupid way to test s is empty if (bool(s) == False) == True: # test that appending s to itself is itself if s+s == s: # test that s has none of any character if not filter(None, [1 + s.find(chr(n)) for n in range(256)]): That last one is really only good for wasting CPU cycles. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
