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Make --version write to stdout rather than stderr 

Fix #8246
This commit is contained in:
Bruno Oliveira 2021-01-17 08:43:36 -03:00
parent 2623ee2e0e
commit 109312ba86
4 changed files with 8 additions and 7 deletions
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1
changelog/8246.breaking.rst Normal file
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@ -0,0 +1 @@
``--version`` now writes version information to ``stdout`` rather than ``stderr``.

6
src/_pytest/helpconfig.py
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@ -127,7 +127,7 @@ def pytest_cmdline_parse():
def showversion(config: Config) -> None:
if config.option.version > 1:
sys.stderr.write(
sys.stdout.write(
"This is pytest version {}, imported from {}\n".format(
pytest.__version__, pytest.__file__
)
@ -135,9 +135,9 @@ def showversion(config: Config) -> None:
plugininfo = getpluginversioninfo(config)
if plugininfo:
for line in plugininfo:
sys.stderr.write(line + "\n")
sys.stdout.write(line + "\n")
else:
sys.stderr.write(f"pytest {pytest.__version__}\n")
sys.stdout.write(f"pytest {pytest.__version__}\n")
def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]:

2
testing/test_config.py
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@ -1756,7 +1756,7 @@ def test_help_and_version_after_argument_error(pytester: Pytester) -> None:
assert result.ret == ExitCode.USAGE_ERROR
result = pytester.runpytest("--version")
result.stderr.fnmatch_lines([f"pytest {pytest.__version__}"])
result.stdout.fnmatch_lines([f"pytest {pytest.__version__}"])
assert result.ret == ExitCode.USAGE_ERROR

6
testing/test_helpconfig.py
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@ -7,16 +7,16 @@ def test_version_verbose(pytester: Pytester, pytestconfig, monkeypatch) -> None:
monkeypatch.delenv("PYTEST_DISABLE_PLUGIN_AUTOLOAD")
result = pytester.runpytest("--version", "--version")
assert result.ret == 0
result.stderr.fnmatch_lines([f"*pytest*{pytest.__version__}*imported from*"])
result.stdout.fnmatch_lines([f"*pytest*{pytest.__version__}*imported from*"])
if pytestconfig.pluginmanager.list_plugin_distinfo():
result.stderr.fnmatch_lines(["*setuptools registered plugins:", "*at*"])
result.stdout.fnmatch_lines(["*setuptools registered plugins:", "*at*"])
def test_version_less_verbose(pytester: Pytester, pytestconfig, monkeypatch) -> None:
monkeypatch.delenv("PYTEST_DISABLE_PLUGIN_AUTOLOAD")
result = pytester.runpytest("--version")
assert result.ret == 0
result.stderr.fnmatch_lines([f"pytest {pytest.__version__}"])
result.stdout.fnmatch_lines([f"pytest {pytest.__version__}"])
def test_versions():