bpo-40275: Use new test.support helper submodules in tests

[shihai1991]

Use test helpers in the following test cases:

• test_dbm_gnu
• test_faulthandler
• test_grp
• test_dbm_gnu
• test_faulthandler
• test_grp
• test_http_cookiejar
• test_httpservers
• test_import
• test_ntpath
• test_site
• test_socketserver
• test_statistics
• test_tabnanny
• test_tcl
• test_md5sum
• test_turtle
• test_urllib2net
• test_urllibnet
• test_webbrowser
• test_winsound
• test_tkinter

https://bugs.python.org/issue40275

[shihai1991]

cc @vstinner

[vstinner]

@shihai1991: How many remaining tests need to be patched? Do you have an estimation?

[shihai1991]

@shihai1991: How many remaining tests need to be patched? Do you have an estimation?

I have ported all tests what I can test in my centos vm. To some testcases which runs in windows and macos I depend ci gate to estimate.
I estimate it's between 5 to 8(not too exact)

[vstinner]

I estimate it's between 5 to 8(not too exact)

That's great!

I have ported all tests what I can test in my centos vm. To some testcases which runs in windows and macos I depend ci gate to estimate.

You can write a test/WIP PR which removes aliases in test.support and see which tests fail.

[shihai1991]

You can write a test/WIP PR which removes aliases in test.support and see which tests fail.

yep. I have already did this ; )