How to take a single value from dictionary

[ginjaninja247]

I've created codes that collects weather data using JSON and API keys. However, all I really need is one value of one dictionary, but my code keeps returning "TypeError: list indices must be integers or slices, not str". What do I do.

Relevant Code:

url = "http://api.openweathermap.org/data/2.5/weather?q=brisbane&appid=7f50acdcb4d66b2117f7af48d489fbd4"
response = urllib.request.urlopen(url)
result_3 = json.loads(response.read())
weather = result_3['weather']['description']
print("ISS now at latitude: ", weather)

'weather' dictionary:[{'id': 800, 'main': 'Clear', 'description': 'clear sky', 'icon': '01n'}]

[buran]

weather = result_3['weather'][0]['description']

weather is a list with one element (at least in this case). Maybe in other cases it could have more than one lement