Python main call within class

Question

I haven't done much python - coming from a C/Java background - so excuse me for asking such a simple question. I am using Pydev in Eclipse to write this simple program, and all I want it to do is to execute my main function:

class Example():  if __name__ == '__main__':     Example().main()        <----- What goes here?       def main(self):              print "Hello World! 

That is what I have now. I have also tried

self.main()  

and

main() 

and

main(self) 

none of which work. What am I missing?

Answer 1

Well, first, you need to actually define a function before you can run it (and it doesn't need to be called main). For instance:

class Example(object):     def run(self):         print "Hello, world!"  if __name__ == '__main__':     Example().run() 

You don't need to use a class, though - if all you want to do is run some code, just put it inside a function and call the function, or just put it in the if block:

def main():     print "Hello, world!"  if __name__ == '__main__':     main() 

or

if __name__ == '__main__':     print "Hello, world!" 

Answer 2

That entire block is misplaced.

class Example(object):     def main(self):              print "Hello World!"  if __name__ == '__main__':     Example().main() 

But you really shouldn't be using a class just to run your main code.