I am trying to retrieve the temperature of a city using the openweathermap api however I am not able to retrieve it. I am able to retrieve the City name but not temperature and other bits I would like to retrieve. I know its probably to do with how I am trying to retrieve it but I can't figure it out.
Here is my code for trying to get the name and temperature (name works but temperature does not)
def format_response(weather):
try:
name = weather['city']['name']
temperature = weather['main']['temp']
final_str = f'City: {name} \n Temperature {temperature}'
except:
final_str = 'There was a problem retrieving that information'
return final_str
And here is the JSON given for expected API response on the openweathermap website which matches the output in my console.
{
"cod": "200",
"message": 0,
"cnt": 40,
"list": [
{
"dt": 1647345600,
"main": {
"temp": 286.88,
"feels_like": 285.93,
"temp_min": 286.74,
"temp_max": 286.88,
"pressure": 1021,
"sea_level": 1021,
"grnd_level": 1018,
"humidity": 62,
"temp_kf": 0.14
},
"weather": [
{
"id": 804,
"main": "Clouds",
"description": "overcast clouds",
"icon": "04d"
}
],
"clouds": {
"all": 85
},
"wind": {
"speed": 3.25,
"deg": 134,
"gust": 4.45
},
"visibility": 10000,
"pop": 0,
"sys": {
"pod": "d"
},
"dt_txt": "2022-03-15 12:00:00"
},
{
"dt": 1647356400,
"main": {
"temp": 286.71,
"feels_like": 285.77,
"temp_min": 286.38,
"temp_max": 286.71,
"pressure": 1021,
"sea_level": 1021,
"grnd_level": 1017,
"humidity": 63,
"temp_kf": 0.33
},
"weather": [
{
"id": 804,
"main": "Clouds",
"description": "overcast clouds",
"icon": "04d"
}
],
"clouds": {
"all": 90
},
"wind": {
"speed": 3.34,
"deg": 172,
"gust": 4.03
},
"visibility": 10000,
"pop": 0,
"sys": {
"pod": "d"
},
"dt_txt": "2022-03-15 15:00:00"
},
...
],
"city": {
"id": 2643743,
"name": "London",
"coord": {
"lat": 51.5073,
"lon": -0.1277
},
"country": "GB",
"population": 1000000,
"timezone": 0,
"sunrise": 1647324903,
"sunset": 1647367441
}
}
Given the JSON you've provided, you need to loop over the "list" property and then access the ["main"]["temp"] field of each item:
def get_temps(weather_data):
for e in weather_data["list"]:
print(e["main"]["temp"])
# this is your JSON clipped to 2 items in the
# 'list' property
js = {
"cod": "200",
"message": 0,
"cnt": 40,
"list": [
{
"dt": 1647345600,
"main": {
"temp": 286.88,
"feels_like": 285.93,
"temp_min": 286.74,
"temp_max": 286.88,
"pressure": 1021,
"sea_level": 1021,
"grnd_level": 1018,
"humidity": 62,
"temp_kf": 0.14
},
"weather": [
{
"id": 804,
"main": "Clouds",
"description": "overcast clouds",
"icon": "04d"
}
],
"clouds": {
"all": 85
},
"wind": {
"speed": 3.25,
"deg": 134,
"gust": 4.45
},
"visibility": 10000,
"pop": 0,
"sys": {
"pod": "d"
},
"dt_txt": "2022-03-15 12:00:00"
},
{
"dt": 1647356400,
"main": {
"temp": 286.71,
"feels_like": 285.77,
"temp_min": 286.38,
"temp_max": 286.71,
"pressure": 1021,
"sea_level": 1021,
"grnd_level": 1017,
"humidity": 63,
"temp_kf": 0.33
},
"weather": [
{
"id": 804,
"main": "Clouds",
"description": "overcast clouds",
"icon": "04d"
}
],
"clouds": {
"all": 90
},
"wind": {
"speed": 3.34,
"deg": 172,
"gust": 4.03
},
"visibility": 10000,
"pop": 0,
"sys": {
"pod": "d"
},
"dt_txt": "2022-03-15 15:00:00"
}
],
"city": {
"id": 2643743,
"name": "London",
"coord": {
"lat": 51.5073,
"lon": -0.1277
},
"country": "GB",
"population": 1000000,
"timezone": 0,
"sunrise": 1647324903,
"sunset": 1647367441
}
}
get_temps(js)
And I get this:
286.88
286.71
If you only care about, say, getting the most recent temperature reading, you can just read the first item of the list.
# I don't know if this API can return an empty list, but
# this also makes sure you don't access an empty list
def get_latest_temp(weather_data):
if weather_data["list"]:
return weather_data["list"][0]["main"]["temp"]
else:
return None