Bug filed and initial attempt at a patch by Bohuslav Kabrda.

are opened in text mode. Patch by Serhiy Storchaka.

The 3.4rc2 Windows uninstaller would fail if pip had been updated
to a version that didn't match the version installed by ensurepip.
This skip is no longer treated as an error, so an updated pip ends
up being handled like any other pip installed package and is left
alone by the CPython uninstaller.

Code patch by Serhiy Storchaka

I had incorrectly added back the shorten method when I initially
made the whatsnew entry, but the shorten function docs were not
correct according to the code.  I also improved the wording in
general.

Issue #20791: copy.copy() now doesn't make a copy when the input is a bytes object.  Initial patch by Peter Otten.

Patch by Berker Peksag.

That is: one paragraph per feature.

The signature and description of PyException_SetCause now use "cause"
rather than "ctx" to match the code.

Issue #20791: copy.copy() now doesn't make a copy when the input is a bytes object.  Initial patch by Peter Otten.

PathEntryFinder instances which only define find_module().

Reported by Yukihiro Nakadaira.

For example: "finish_recv", not just "finish".

assert methods in coroutines.

It also simplify merges from Tulip to Trollius (Python 2 does not support non
local variables).

Use "from unittest import mock". It should simplify my work to merge new tests
in Trollius, because Trollius uses "mock" backport for Python 2.