Adding a rain delay for OpenSprinkler

rainDelay.py

# PLEASE SEE https://kevinsaye.wordpress.com/2021/07/05/adding-a-rain-delay-for-opensprinkler/ 

import requests
import sys
import time
import datetime

URL = "https://api.openweathermap.org/data/2.5/forecast?lat=YYY&lon=XXX&appid=SECRET"
delayURL = "https://MY_URL/cv?pw=SECRETTOO&rd="
# check every 6 hours
interval = 21600

# 7mm (7 Liter per qm in the next 24h)
rainTargetMMTotal = 7

# We only want to disable *our* rain delay; not a manually added delay from the OSPI App
rainDelayFromScript = False

while True:
    # TODO: Actually it would be worth checking by crawling the OSPI API whether there already is a (manual) delay that's longer than our 12h and only set a delay if there is none
    # And then "continue" here if so
    # But for the sake of simplicity let's ignore this for now

    try:
        weatherJSON = requests.get(URL).json()
        rainMMTotal = 0
        rainData = ""

        #  next 0-7 => 8 x 3h forcast = next 24h rain forcast
        for x in range(0,8):
            if "rain" in weatherJSON["list"][x]:
                # rain in mm * pop (Probability of precipitation in percent 0-1)
                rainMMTotal += (weatherJSON["list"][x]["rain"]["3h"] * weatherJSON["list"][x]["pop"])
                rainData += str(weatherJSON["list"][x]["dt_txt"]) + "=" + str(weatherJSON["list"][x]["weather"][0]["main"]) + "," + str(weatherJSON["list"][x]["rain"]["3h"] * weatherJSON["list"][x]["pop"]) + ";"
            else:
                rainData += str(weatherJSON["list"][x]["dt_txt"]) + "=" + str(weatherJSON["list"][x]["weather"][0]["main"]) + ";"

        if rainMMTotal >= rainTargetMMTotal:
            print(str(datetime.datetime.now()) + " Rain Delay, data:" + rainData)
            rainDelayFromScript = True
            requests.get(delayURL + "12")
        elif rainDelayFromScript:
            print(str(datetime.datetime.now()) + " No Rain Delay, data:" + rainData)
            rainDelayFromScript = False
            requests.get(delayURL + "0")
    except:
        print(str(datetime.datetime.now()) + " Error: " + str(sys.exc_info()))
    time.sleep(interval)