Since my “Mighty Dictionary” talk at PyCon 2010, the Python dictionary has evolved dramatically. Come learn about all of the the improvements, up to and including the re-architecture that has just landed with Python 3.6! The talk will discuss iterable views, the dictionary’s dedicated comprehension syntax, random key ordering, the special key-sharing dictionary designed to underlie object collections, and, most famously of all, the new “compact dictionary” that cuts dictionary storage substantially — and carries a fascinating side-effect. Each new feature that the talk discusses will be motivated by considering the trade-offs inherent in hash table data structure design, and followed up with hints about how you can now use the dictionary even more effectively in your own code!

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