New output looks like this:

Traceback (most recent call last):
  File "test.py", line 5, in test_ce
    self.assertCountEqual('abracadabra xx', 'simsalabim xx')
AssertionError: Element counts were not equal:
Expected 5, got 2:  'a'
Expected 2, got 1:  'b'
Expected 0, got 2:  'i'
Expected 0, got 2:  'm'
Expected 0, got 1:  'l'
Expected 0, got 2:  's'
Expected 1, got 0:  'c'
Expected 1, got 0:  'd'
Expected 2, got 0:  'r'

problem with Content-Length header and uncommenting the test.

Addition OKed by GB on IRC (R. David Murray). No backport.

part of the iterator had been consumed.   Also, fix argument names which
did not match the docs and were a bit misleading.

Original patch by Thomas Herve.

self.handlers is still used in one urllib2 test, but not by the code iteslf.

for identifiers.  Fixed the documentation to agree.

Previously passing a string in as the password would fail either with
an assertion error or a TypeError with a confusing error message.
Note that a string can't be accepted since zipfile has no way to
guess what encoding should be used to turn it into bytes.

Patch by Victor Stinner.

(part of #10735)