Weather Software > RaspberryPI Weather Software
Extract Weather Underground json value using python
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Scott216:
Weather Underground changed their API recently. I'm trying to get rain data from my own station. When I do a get request, I get this back from WU:
{"observations":[{"stationID":"KVTWESTD3","obsTimeUtc":"2019-04-24T12:36:03Z","obsTimeLocal":"2019-04-24 08:36:03","neighborhood":"Mt. Snow/Suntec Forest","softwareType":"RPi-Moteino","country":"US","solarRadiation":null,"lon":-72.88607788,"realtimeFrequency":null,"epoch":1556109363,"lat":42.94797134,"uv":null,"winddir":298,"humidity":76,"qcStatus":1,"imperial":{"temp":44,"heatIndex":44,"dewpt":37,"windChill":41,"windSpeed":6,"windGust":15,"pressure":25.00,"precipRate":0.00,"precipTotal":0.07,"elev":1932}}]}
I'm trying to extract just the precipTotal value. My old code looked like this:
--- Code: ---response = requests.get(getUrl, timeout=10).json()
daily_rain = float(response['current_observation']['precip_today_in'])
--- End code ---
I played replaced ['current_observation']['precip_today_in'] with a few variations I hoped would work, but I couldn't figure it out. I know very little about json formats and I'm pretty new at python also. Any suggestions?
droiddk:
Hi Scott
This will do it:
--- Code: ---import json
json_file = '{"observations":[{"stationID":"KVTWESTD3","obsTimeUtc":"2019-04-24T12:36:03Z","obsTimeLocal":"2019-04-24 08:36:03","neighborhood":"Mt. Snow/Suntec Forest","softwareType":"RPi-Moteino","country":"US","solarRadiation":null,"lon":-72.88607788,"realtimeFrequency":null,"epoch":1556109363,"lat":42.94797134,"uv":null,"winddir":298,"humidity":76,"qcStatus":1,"imperial":{"temp":44,"heatIndex":44,"dewpt":37,"windChill":41,"windSpeed":6,"windGust":15,"pressure":25.00,"precipRate":0.00,"precipTotal":0.07,"elev":1932}}]}'
weather_dictionary = json.loads(jsonfile)
precipTotal = weather_dictionary["observations"][0]['imperial']['precipTotal']
print(precipTotal)
--- End code ---
Python is great :-)
Regards
Scott216:
Thanks droiddk. It's working now.
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