doctest currently has 8 "data" files used for testing that are spread across Lib/test (in addition to the main test files test_doctest.py and test_doctest2.py):

doctest_aliases.py
sample_doctest.py
sample_doctest_no_docstrings.py
sample_doctest_no_doctests.py
test_doctest.txt
test_doctest2.txt
test_doctest3.txt
test_doctest4.txt

This issue is to move these files into a common subdirectory of Lib/test (e.g. Lib/test/doctest).  This will simplify the organization of doctest's tests (e.g. by making the supporting files easier to discover) and reduce clutter in the main test directory.

Note that test_zipimport_support (and perhaps also test_pyclbr) will also require changes.

This issue came out of discussions with R. David Murray in the context of working on issue 14649.

@Chris can you provide a patch for this?

Here is a patch that hopefully does what was intended. All the tests passed locally, hopefully the tests we're adapted correctly to the new location of the files. My first patch :)

I added a new "data" file 'doctest_DocFileSuite_test.txt' to Lib/test to keep the test that tests that doctest.DocFileSuite loads files from calling module path. All the old files I moved to Lib/test/doctest and adapted tests to use them from there.

Ezio, here are new versions of the patch. This time I used `hg mv` command to move the files to the new location and then copied over the correct versions. It does look though to me that there is no difference except timestamps.

I will upload also a --git version in the next comment.

Here is the `hg diff --git` patch.

Hope this one applies :)

The patch needs to be converted into a github PR.