Refactor main function

youtube-dl

@@ -2872,9 +2872,7 @@ def parseOpts():
 
 	return parser, opts, args
 
-
-if __name__ == '__main__':
-	try:
+def main():
 	parser, opts, args = parseOpts()
 
 	# Open appropriate CookieJar
@@ -3046,6 +3044,10 @@ if __name__ == '__main__':
 
 	sys.exit(retcode)
 
+
+if __name__ == '__main__':
+	try:
+		main()
 	except DownloadError:
 		sys.exit(1)
 	except SameFileError: