(An issue similar to http://bugs.python.org/issue26911 , but with a different source file from the tests)

Lib/test/test_email/torture_test.py:15:from email.test.test_email import TestEmailBase

should be:

from test.test_email import TestEmailBase

because the first variant has a non-existing path.

(This makes the auto-requirements generator in ALT Sisyphus to generate a broken/unsatisfiable dependency on email.test.test_email when building the package from http://git.altlinux.org/people/imz/packages/python3.git .)

Similarly,

Lib/test/test_email/test_asian_codecs.py:8:from test.test_email.test_email import TestEmailBase

should better not have an extra "test_email" component in the path.

All other imports of test_email in Python 3.5.1 sources are of the form I'm suggesting:

$ git --no-pager grep -Fn .test_email
Lib/test/test_email/__init__.py:9:from test.test_email import __file__ as landmark
Lib/test/test_email/__main__.py:1:from test.test_email import load_tests
Lib/test/test_email/test__encoded_words.py:4:from test.test_email import TestEmailBase
Lib/test/test_email/test__header_value_parser.py:6:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/test_asian_codecs.py:8:from test.test_email.test_email import TestEmailBase
Lib/test/test_email/test_contentmanager.py:2:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/test_defect_handling.py:6:from test.test_email import TestEmailBase
Lib/test/test_email/test_email.py:42:from test.test_email import openfile, TestEmailBase
Lib/test/test_email/test_generator.py:8:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/test_headerregistry.py:8:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/test_inversion.py:11:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/test_message.py:5:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/test_parser.py:5:from test.test_email import TestEmailBase
Lib/test/test_email/test_pickleable.py:9:from test.test_email import TestEmailBase, parameterize
Lib/test/test_email/torture_test.py:15:from email.test.test_email import TestEmailBase
Misc/HISTORY:1733:- Issue #8315: (partial fix) python -m unittest test.test_email now works.

BTW, I'm not sure these two files are used anywhere, because grep gives no results for their names.

torture_test is not currently run, and this is intentional (it uses a large external resource).  It is kept for reference and in case anyone wants to run it by hand[*].  The import should be fixed.

test_asian_codecs is run automatically by the unittest load tests protocol.  That import should be fixed as well since it is picking up the class from the wrong location.

[*] At one point I was working on making it run when the largefile resource is asserted, by downloading the resource.  But I'm not convinced it is a good idea, so I abandonded that.

As with #26911, no 'test_' prefix means 'run by hand'.  I will make the two simple fixes, as well as delete 'from types import ListType' (ListType is list, and removed in 3.x).  But I will not try to run the torture test, hence no guarantee that it will run after import.

New changeset e7da216ba17c by Terry Jan Reedy in branch '3.5':
Issue 26912: fix broken imports in test_email package.
https://hg.python.org/cpython/rev/e7da216ba17c

I also removed try to import the deleted support.TestSkipped.  I temporarily commented out the SkipTest replacement so the module would run, create the test class, run it, and fail.

I believe the import of run_unittest and the associated test_main, etc, can be deleted, but that is another issue.