slicing question: rawdata[j:j+1] == 'xx' #will this ever be true ??
I am new to python language and most of my python programming has been done with IronPython. I was looking at the source of markupbase.py which is included with Python 2.4 and came across the following line of code:- if rawdata[j:j+1] == '--': #comment i was confused because based on my understanding of the slicing syntax, rawdata[j:j+1] will either yield a string with ONE character or an empty string, therefore this boolean comparison will always be False because we are checking if it will be equal to a string with 2 characters! am I missing something here ? thank you in advance for educating me. -- http://mail.python.org/mailman/listinfo/python-list
finish_endtag in sgmllib.py [Python 2.4]
code:- # Internal -- finish processing of end tag def finish_endtag(self, tag): if not tag: # < i am confused about this found = len(self.stack) - 1 if found < 0: self.unknown_endtag(tag) # < and this return I am a little confused as to what is intended by " if not tag: " does it mean if tag == None or tag == "": # ? tag here is suppose to be a string. so the only way it will be True is when its either None or its "", then we are essentially passing None or "" to self.unknown_endtag(tag) ?? thank you in advance. Richard Hsu hobbyist programmer. Toronto, Canada. -- http://mail.python.org/mailman/listinfo/python-list
Re: finish_endtag in sgmllib.py [Python 2.4]
thank you Ben. not only did i learn something about my question, i learnt the 'truth' :-) -- http://mail.python.org/mailman/listinfo/python-list
