Pythonista extension to import URL as Python script

PyImporter.py

import appex
import clipboard
import urllib3
import os

def main():
	if not appex.is_running_extension():
		print('This script is intended to be run from the sharing extension.')
		return
		
	url = appex.get_url()
	if not url:
		print('No URL?')
		return
		
	fname = url.split('/')[-1]
	fname, fext = os.path.splitext(fname)
	if fext != ".py":
		fext = ".py"
	fname = fname + fext
	fname = os.path.join(os.path.expanduser('~/Documents'), fname)

	http = urllib3.PoolManager()
	response = http.request('GET', url)
	with open(fname, 'wb') as f:
		f.write(response.data)
	
if __name__ == '__main__':
	main()