This indicates at least for people using type checkers that these
classes are not designed for inheritance and we make no stability
guarantees regarding inheritance of them.
Currently this doesn't show up in the docs. Sphinx does actually support
`@final`, however it only works when imported directly from `typing`,
while we import from `_pytest.compat`.
In the future there might also be a `@sealed` decorator which would
cover some more cases.
This makes a difference for e.g. pytest-xdist:
Before:
```
--dist=distmode set mode for distributing tests to exec environments. each: …
available environment. loadscope: …
grouped by file to any available environment. (default) no: …
```
After:
```
--dist=distmode set mode for distributing tests to exec environments.
each: send each test to all available environments.
load: load balance by sending any pending test to any available environment.
…
(default) no: run tests inprocess, don't distribute.
```
This might also result in unexpected changes (hard wrapping), when line
endings where used unintentionally, e.g. with:
```
help="""
some long
help text
"""
```
But the benefits from that are worth it, and it is easy to fix, as will
be done for the internal `assertmode` option.
This feature was added in commit
007a77c2ba, but was never used in pytest
itself. A GitHub code search doesn't find any users either (only pytest
repo copies). It seems safe to clean up.
`argparse.HelpFormatter` looks at `$COLUMNS` only, falling back to a
default of 80.
`py.io.get_terminal_width()` is smarter there, and could even work
better with https://github.com/pytest-dev/py/pull/219.
This ensures to use a consistent value for formatting the ini values etc.
It seems pytest's very comprehensive CI sniffed out a few other places with similar bugs. Ideally we should find all the places where args are not stringy and solve it at the source, but who knows how many people are relying on the implicit string conversion. See [here](https://github.com/pytest-dev/pytest/blob/master/src/_pytest/config/__init__.py#L160-L166) for one such problem area (args with a single py.path.local instance is converted here, but a list or tuple containing some are not).
Anthony Sottile
Ran Benita
Ram Rachum
Daniel Hahler
Ran Benita
Semen Zhydenko
Bruno Oliveira
Zac Hatfield-Dodds
Ville Skyttä
CrazyMerlyn
wim glenn
Bruno Oliveira
Ronny Pfannschmidt