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Download class materials onto your desktop…

Download class materials onto your desktop…. as usual. JSON (JavaScript Object Notation). Think of it as a string representation of a Python object, in particular, a dictionary

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Download class materials onto your desktop…

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  1. Download class materials onto your desktop… as usual

  2. JSON(JavaScript Object Notation) • Think of it as a string representation of a Python object, in particular, a dictionary • The json package in Python allows you to convert a library to a JSON object(string representation) or from a JSON object to a Python object. • This allows easy data transfer and storage across platforms.

  3. Streamer

  4. Analyzer

  5. Answer the following questions • How many keys (attributes) are there in a single tweet? • What are they (can you print them out)? • One of the keys is 'user'. What type of object is its value? • Does a tweet have a key called 'place'? What type of object is its value?

  6. Next tasks • I just loaded one tweet for you. Can you load all of them • Can you find out how many tweets whose 'place' attribute is not None? • For those tweets whose 'place' attributes are not None, print the values of 'place'. What type of object they are?

  7. More about geotag • The value of 'place', when not None, is a dictionary. Find out what are its keys. • Look at 'bounding_box'. These are four coordinates that specify a square on the earth. Take the first one. Can you find out where it is?

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