Simple CI tool

driver.py

import datetime
from hashlib import sha256
import logging

import pytest

logging.basicConfig(level=logging.DEBUG)
old = ''
with open('app.py') as op:
    hash_bytes = op.read()
    old = sha256(hash_bytes.encode('utf-8')).hexdigest()

    logging.debug(f'{old} is the sha256 hash as of {datetime.datetime.now()}')

while True:
    latest = ''
    with open('app.py') as op:
        hash_bytes = op.read()
        latest = sha256(hash_bytes.encode('utf-8')).hexdigest()
        if latest != old:
            logging.debug(f'change detected between {old} and {latest} on {datetime.datetime.now()}')
            pytest.main(['app.py'])
            old = latest