Once we've parsed the low-level syntax to transform XML to Python, we can restructure the raw data into something usable in our Python program. This kind of structuring applies to XML, JavaScript Object Notation (JSON), CSV, and any of the wide variety of physical formats in which data is serialized.
We'll aim to write a small suite of generator functions that transforms the parsed data into a form our application can use. The generator functions include some simple transformations on the text that are found by the row_iter_kml() function, which are as follows:
- Discarding altitude can also be stated as keeping only latitude and longitude
- Changing the order from (longitude, latitude) to (latitude, longitude ...
