All three of these systems utilize lists and dictories, or things similar to them to tranfer or organize data.

All three take something (arguments or requests) and can produce soemthing else in return with Internet.
All three are also able to allow you to build more complex things. You can reuse functions, or programs to make more complex programs.
You can can take from one service and make another more complex service with it.

weather/weather.py

@@ -22,3 +22,7 @@ def print_weather(location=None, metric=False, verbose=False):
     When verbose is True, prints out a more detailed report. 
     """
     print("Not finished...") # YOUR CODE HERE!
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