Python 3.5 gave us options to write asynchronous functions; Python 3.6 bolsters them. But the biggest changes in Python 3.6 lie under the hood, and they open up possibilities that didn’t exist ...

The dictionary functions in a similar fashion to the Python list, in that it is a collection of data. In this case, however, dictionaries hold key-value pairs instead of single values.

The plan was to mark them as deprecated for 3.11 and 3.12, and then remove them entirely in Python 3.13. As of now, those “dead batteries” (as they’ve been called) are now permanently removed.

Range functions. Python 3’s range() function replaced Python 2’s xrange() ... and Python is no exception since there are key distinctions between Python 2 and Python 3.