Yahoo Weather API Python Sample.

weather_ydn_sample.py

"""
Weather API Python sample code

Copyright 2019 Oath Inc. Licensed under the terms of the zLib license see https://opensource.org/licenses/Zlib for terms.

$ python --version
Python 2.7.10

"""
import time, uuid, urllib, urllib2
import hmac, hashlib
from base64 import b64encode

"""
Basic info
"""
url = 'https://weather-ydn-yql.media.yahoo.com/forecastrss'
method = 'GET'
app_id = 'your-app-id'
consumer_key = 'your-consumer-key'
consumer_secret = 'your-consumer-secret'
concat = '&'
query = {'location': 'sunnyvale,ca', 'format': 'json'}
oauth = {
    'oauth_consumer_key': consumer_key,
    'oauth_nonce': uuid.uuid4().hex,
    'oauth_signature_method': 'HMAC-SHA1',
    'oauth_timestamp': str(int(time.time())),
    'oauth_version': '1.0'
}

"""
Prepare signature string (merge all params and SORT them)
"""
merged_params = query.copy()
merged_params.update(oauth)
sorted_params = [k + '=' + urllib.quote(merged_params[k], safe='') for k in sorted(merged_params.keys())]
signature_base_str =  method + concat + urllib.quote(url, safe='') + concat + urllib.quote(concat.join(sorted_params), safe='')

"""
Generate signature
"""
composite_key = urllib.quote(consumer_secret, safe='') + concat
oauth_signature = b64encode(hmac.new(composite_key, signature_base_str, hashlib.sha1).digest())

"""
Prepare Authorization header
"""
oauth['oauth_signature'] = oauth_signature
auth_header = 'OAuth ' + ', '.join(['{}="{}"'.format(k,v) for k,v in oauth.iteritems()])

"""
Send request
"""
url = url + '?' + urllib.urlencode(query)
request = urllib2.Request(url)
request.add_header('Authorization', auth_header)
request.add_header('X-Yahoo-App-Id', app_id)
response = urllib2.urlopen(request).read()
print(response)

@ubdussamad I took another look at my code and it looks like if I just use the yahoo pypi library I can authenticate with the credentials using keyring so that shouldn't be causing any issues. I also just printed the strings to standard output and did not see any whitespace or illegal characters. This is leading me to believe that the user agent is causing issues. I haven't done too many web requests in python. My system is running python 3.7 on windows but the desired goal is to run this script on a linux OS so I'm not 100% sure what user agent to be using but I will do some research. I will comment below if I find a solution to get the script running. Thanks!!

@ubdussamad I had accidentally misclicked a "h" in my keyring import so it wasn't grabbing the secret key. Works flawlessly now. Thanks! 😄

@GrantBirki Well, it's good that it worked out. That's why I don't use key rings for projects since they add extra margin of error. :) But sometimes it's just nessasary. I forgot the snippet can be considered under MIT licence.