This change removes the u() helper from bson.py3compat
and all of its uses in the driver and tests. PyPy3 continues
to be supported since, even though it is based on python 3.2.5,
it has always supported the u string prefix.
The README and install docs are now explicit about PyPy(3) support.
This commit deprecates insert, update, save, and remove. Each
now raises DeprecationWarning at stacklevel 2. This change also
updates all tutorials and example documentation to use the new
CRUD API, tests the deprecations, and fixes up a few more tests
that were still using the legacy API.
If you need to continue to use any of these Python versions with MongoDB
the 2.x branch of PyMongo will continue to be minimally maintained for
some time.
