Add main Python snippet

UltiSnips/python.snippets

@@ -0,0 +1,20 @@
+snippet main "Python main stub"
+#!/usr/bin/env python
+"""${1:docstring}"""
+
+from argparse import ArgumentParser
+
+
+def main():
+	"""Main entry point."""
+	parser = ArgumentParser(description='${2:description}')
+	parser.add_argument('${3:argument}')
+	args = parser.parse_args()$0
+
+
+if __name__ == '__main__':
+	try:
+		main()
+	except KeyboardInterrupt:
+		pass
+endsnippet