Updated key/endpoint

Endpoints are not region-based anymore, but rather custom domain -based. Although regional endpoints will still work. Also, the authentication information is moving to a standard of getting it from environment variables.

Author: wiazur

python/Search/BingVisualSearchv7.py

@@ -6,10 +6,11 @@
 
 import requests, json
 
+# Add your Bing Search V7 endpoint to your environment variables.
+BASE_URI = os.environ['BING_SEARCH_V7_ENDPOINT'] + '/bing/v7.0/images/visualsearch'
 
-BASE_URI = 'https://api.cognitive.microsoft.com/bing/v7.0/images/visualsearch'
-
-SUBSCRIPTION_KEY = 'your-subscription-key'
+# Add your Bing Search V7 subscription key to your environment variables.
+SUBSCRIPTION_KEY = os.environ['BING_SEARCH_V7_SUBSCRIPTION_KEY']
 
 imagePath = 'your-image-path'
 
@@ -36,4 +37,4 @@ def print_json(obj):
 
 # Main execution
 if __name__ == '__main__':
-    main()
+    main()