[Python] remove all annotations starting with #

import re
input= open('input.py', 'r', encoding='utf-8').read()

# convert a line (\n) starting with ## into an empty line (\n)  
output= re.sub(re.compile(r"##.*[\n]" ) , "\n" , input)    
open('output.py', 'w', encoding='utf-8').write(output)