#!/usr/bin/env python3
# Do `echo 0 > ~/visits.txt` before serving

with open('../../visits.txt', 'r+') as f:
  visits = int(f.read()) + 1   # Read visit count, increment
  f.seek(0)
  f.write(str(visits))         # Save visit count

# Write response!
print('Content-Type: text/plain')
print('Cache-Control: no-cache')
print()
print(visits)