On Mar 15, 10:38 am, Gary Herron <[EMAIL PROTECTED]> wrote: > tonyr1988 wrote: > > I'm a complete python n00b writing my first program (or attempting to, > > anyway). I'm trying to make the transition from Java, so if you could > > help me, it would be greatly appreciated. Here's the code I'm stuck on > > (It's very basic): > > > class DemoClass: > > def __init__(self): > > self.title = ["Hello", "Goodbye"] > > > def WriteToFile(self, path = "test.txt"): > > fw = file(path, "w") > > pickle.dump(self.title, fw) > > fw.close() > > > if __name__=='__main__': > > x = DemoClass > > x.WriteToFile > > > It doesn't do any file I/O at all (that I see). I hope my syntax is > > alright. If I just call WriteToFile, shouldn't it perform with the > > default path? It gives me no errors and pretends to execute just fine. > > Several people have pointed out the problem, but when you get that > fixed, I see another bit of trouble. The pickle format is a binary > format (be default), but you don't open the file in binary mode. On > Unix the distinction is (wisely) irrelevant, but on Windows you should > open the file with a mode of "wb" not just "w".
Thanks guys for all the help. Sure enough, it was the parenthesis. Most of my problems seem to be from under-simplifying (using semicolons, brackets, etc) or, rarely, over-simplifying (forgetting parenthesis). The biggest thing that was messing me up was the mandatory "self" input. For some reason I was thinking that, if I had parenthesis, I would have to define it. Fixing that works perfectly. Also, about the binary format for opening files. The program that I'm working on now is completely Linux-based - it's impossible for it to work on any other OS. Should I still open with "wb" or not? Either way, thanks for that tip! One more (completely irrelevant) question. I don't quite understand the double-underscore functions / methods / etc, such as __name__, __main__, __init__. Is there a reason for the double-underscore? Does it make anything special? Again, thanks for the help...I'm probably going to ask a lot more of it before too long. :) -- http://mail.python.org/mailman/listinfo/python-list
