__main__

[kmilo]

estuve viendo el hello world en cgi de python

--------------hello_cgi.py------------------------------
#!/usr/local/bin/python
# for unix of course  
def main():
	print "Content-type: text/html"
  	print
   	print "<TITLE> Hello, World!</TITLE>"
   	print "Hello, World!"  
if (__name__ == "__main__"):
   	main()

------------------------------------------------------

que es __name__ ?
que es __main__?
y por que los comparan?


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