I am using ubuntu 14.04, and I am trying to install a newer version of python, instead of 2.7.6 I'm trying to use 3.5.1. to do this I downloaded the tar.xz file, extracted it to a directory in my computer (not the /usr/local/bin/). I then went into the terminal and changed to the directory it was in, used $./configure, $make, $make test, and in the test it came up with an error, i then did $make testall, same error, finally i used $./python -m test -v test_nntplib, and it came up with this:
== CPython 3.5.1 (default, Jun 23 2016, 10:51:23) [GCC 4.8.4]
==   Linux-3.13.0-88-generic-x86_64-with-debian-jessie-sid little-endian
==   hash algorithm: siphash24 64bit
==   /home/rrose/temp/Python-3.5.1/build/test_python_18970
Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0)
[1/1] test_nntplib
test_caps_only_after_login (test.test_nntplib.CapsAfterLoginNNTPv2Tests) ... ok
test_decode_header (test.test_nntplib.MiscTests) ... ok
test_parse_datetime (test.test_nntplib.MiscTests) ... ok
test_parse_overview (test.test_nntplib.MiscTests) ... ok
test_parse_overview_fmt (test.test_nntplib.MiscTests) ... ok
test_ssl_support (test.test_nntplib.MiscTests) ... skipped 'requires SSL support'
test_unparse_datetime (test.test_nntplib.MiscTests) ... ok
test_unparse_datetime_legacy (test.test_nntplib.MiscTests) ... ok
test_bad_capabilities (test.test_nntplib.MockSocketTests) ... ok
test_bad_welcome (test.test_nntplib.MockSocketTests) ... ok
test_login_aborted (test.test_nntplib.MockSocketTests) ... ok
test_service_permanently_unavailable (test.test_nntplib.MockSocketTests) ... ok
test_service_temporarily_unavailable (test.test_nntplib.MockSocketTests) ... ok
test_bad_capabilities (test.test_nntplib.MockSslTests) ... skipped 'requires SSL support'
test_bad_welcome (test.test_nntplib.MockSslTests) ... skipped 'requires SSL support'
test_login_aborted (test.test_nntplib.MockSslTests) ... skipped 'requires SSL support'
test_service_permanently_unavailable (test.test_nntplib.MockSslTests) ... skipped 'requires SSL support'
test_service_temporarily_unavailable (test.test_nntplib.MockSslTests) ... skipped 'requires SSL support'
test_article (test.test_nntplib.NNTPv1Tests) ... ok
test_article_file (test.test_nntplib.NNTPv1Tests) ... ok
test_authinfo (test.test_nntplib.NNTPv1Tests) ... ok
test_body (test.test_nntplib.NNTPv1Tests) ... ok
test_body_file (test.test_nntplib.NNTPv1Tests) ... ok
test_caps (test.test_nntplib.NNTPv1Tests) ... ok
test_date (test.test_nntplib.NNTPv1Tests) ... ok
test_description (test.test_nntplib.NNTPv1Tests) ... ok
test_descriptions (test.test_nntplib.NNTPv1Tests) ... ok
test_group (test.test_nntplib.NNTPv1Tests) ... ok
test_head (test.test_nntplib.NNTPv1Tests) ... ok
test_head_file (test.test_nntplib.NNTPv1Tests) ... ok
test_help (test.test_nntplib.NNTPv1Tests) ... ok
test_ihave (test.test_nntplib.NNTPv1Tests) ... ok
test_last (test.test_nntplib.NNTPv1Tests) ... ok
test_list (test.test_nntplib.NNTPv1Tests) ... ok
test_newnews (test.test_nntplib.NNTPv1Tests) ... ok
test_next (test.test_nntplib.NNTPv1Tests) ... ok
test_over (test.test_nntplib.NNTPv1Tests) ... ok
test_post (test.test_nntplib.NNTPv1Tests) ... ok
test_quit (test.test_nntplib.NNTPv1Tests) ... ok
test_stat (test.test_nntplib.NNTPv1Tests) ... ok
test_too_long_lines (test.test_nntplib.NNTPv1Tests) ... ok
test_welcome (test.test_nntplib.NNTPv1Tests) ... ok
test_xover (test.test_nntplib.NNTPv1Tests) ... ok
test_article (test.test_nntplib.NNTPv2Tests) ... ok
test_article_file (test.test_nntplib.NNTPv2Tests) ... ok
test_authinfo (test.test_nntplib.NNTPv2Tests) ... ok
test_body (test.test_nntplib.NNTPv2Tests) ... ok
test_body_file (test.test_nntplib.NNTPv2Tests) ... ok
test_caps (test.test_nntplib.NNTPv2Tests) ... ok
test_date (test.test_nntplib.NNTPv2Tests) ... ok
test_description (test.test_nntplib.NNTPv2Tests) ... ok
test_descriptions (test.test_nntplib.NNTPv2Tests) ... ok
test_group (test.test_nntplib.NNTPv2Tests) ... ok
test_head (test.test_nntplib.NNTPv2Tests) ... ok
test_head_file (test.test_nntplib.NNTPv2Tests) ... ok
test_help (test.test_nntplib.NNTPv2Tests) ... ok
test_ihave (test.test_nntplib.NNTPv2Tests) ... ok
test_last (test.test_nntplib.NNTPv2Tests) ... ok
test_list (test.test_nntplib.NNTPv2Tests) ... ok
test_newnews (test.test_nntplib.NNTPv2Tests) ... ok
test_next (test.test_nntplib.NNTPv2Tests) ... ok
test_over (test.test_nntplib.NNTPv2Tests) ... ok
test_post (test.test_nntplib.NNTPv2Tests) ... ok
test_quit (test.test_nntplib.NNTPv2Tests) ... ok
test_stat (test.test_nntplib.NNTPv2Tests) ... ok
test_too_long_lines (test.test_nntplib.NNTPv2Tests) ... ok
test_welcome (test.test_nntplib.NNTPv2Tests) ... ok
test_xover (test.test_nntplib.NNTPv2Tests) ... ok
skipped "Use of the 'network' resource not enabled"
test_module_all_attribute (test.test_nntplib.PublicAPITests) ... ok
test_we_are_in_reader_mode_after_connect (test.test_nntplib.SendReaderNNTPv2Tests) ... ok

----------------------------------------------------------------------
Ran 70 tests in 0.035s

OK (skipped=7)
1 test OK.
if anyone could tell me how to fix this that would be great, thanks!