from pathlib import Path
import subprocess
p = Path('/etc/ditto-verifier.env')
s = p.read_text()
assert 'CHAMELEON_VERIFICATION_ENABLED=0' in s
p.write_text(s.replace('CHAMELEON_VERIFICATION_ENABLED=0','CHAMELEON_VERIFICATION_ENABLED=1'))
subprocess.run(['systemctl','restart','chameleon-verifier-ditto'],check=True)