Type annotations

Hi!

First, thanks for all the great work on EdgeDB. The Python driver looks fab, and I especially like the built-in async support.

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Problem description From what I’ve seen, edgedb-python public-facing APIs do not provide type annotations. I discovered this by using edgedb.async_connect() and wondering why my editor wouldn’t autocomplete the con object.

Proposed solution Since edgedb-python is targeting Python 3.6+, I believe it should fully embrace type hints. Adding these would add a lot in terms of IDE support and developer productivity.

Implementation ideas If not, I’d be very glad to give a helping hand adding these to the library. The PR might be quite big — should we consider splitting the work by tackling public-facing APIs only first? Let me know!

[elprans]

You aren’t interrupting it, are you? If may appear to hang after that message, but it’s not, the parsers are getting built and that takes a while.

[1st1]

After looking at the docs again, the connection and transaction objects seem to be the main APIs indeed, so only annotating these would already be a great step forward.

Feel free to go ahead and submit a PR! We can then release an updated version shortly.