`tests` directory is installed with `pip install`

Problem description

Version: 4.2.0

Observed:

$ pip install smart-open --target /tmp/smart-open
$ cd /tmp/smart-open/smart_open
$ du -hcs *

We get:

16K	azure.py
8,0K	bytebuffer.py
4,0K	compression.py
4,0K	concurrency.py
4,0K	constants.py
8,0K	doctools.py
20K	gcs.py
4,0K	hdfs.py
12K	http.py
4,0K	__init__.py
4,0K	local_file.py
160K	__pycache__
44K	s3.py
16K	smart_open_lib.py
8,0K	ssh.py
524K	tests
4,0K	transport.py
8,0K	utils.py
4,0K	version.py
8,0K	webhdfs.py
864K	total

==> Tests files represent 60% of the total package size. These files are not needed at “run time”.

Expected: ==> Tests files are not installed with $ pip install. (So the size of the package goes down to 340 kB.)

Additional information: If this issue is validated, I can fix it and provide a PR. The size of packages are important when using AWS Lambdas. (We want to keep Lambdas size as small as possible.)

Checklist

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• Described the problem clearly
• Provided a minimal reproducible example, including any required data
• Provided the version numbers of the relevant software

[e-nalepa]

I just opened https://github.com/RaRe-Technologies/smart_open/pull/589.

[piskvorky]

That PR included data required by smart_open tests, so that the tests pass.

I think what’s being asked here is different: remove the tests from the packaged distribution altogether, both code and data.

FWIW I have no objection, the packaged tests serve no purpose to me. Personally when I want to test a package, I go full dev-mode and install from git and tinker (as opposed to test a pip install-ed prepackaged distribution). But other people may have different valid use-cases.