Wunderground API to get hourly forecast returns error. - Python

问题

I'm trying to get the hourly forecast from the Wunderground API but my code returns this error.

Traceback (most recent call last): File "weathergraph.py", line 10, in forecast = parsed_json['hourly_forecast']['FCTTIME']['temp']['english'] TypeError: list indices must be integers, not str

This is my code.

f=urllib2.urlopen('http://api.wunderground.com/api/mykey/hourly/q/NY/New_York_City.json')

json_string = f.read()

parsed_json = json.loads(json_string)

forecast = parsed_json['hourly_forecast']['FCTTIME']['temp']['english']

f.close()

parsed_json = http://pastie.org/3905346

回答1:

1) The value of hourly_forecast is a list of dicts, not a dict. Looks like about 36 in the list.

2) temp is not an element of FCTTIME. They are at the same level

This should not generate an error:

forecast = parsed_json['hourly_forecast'][-1]['temp']['english'] 

It looks like the list is in order by time, so the last one is most recent. Checking the contents of FCTTIME will tell you whether it is different from the last time that you read it.

来源：https://stackoverflow.com/questions/10572150/wunderground-api-to-get-hourly-forecast-returns-error-python