#31704: django.test.runner breaks if ipdb or dependencies raise unexpected
exceptions
---------------------------------------------+------------------------
Reporter: John Vandenberg | Owner: nobody
Type: Uncategorized | Status: new
Component: Testing framework | Version: 3.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 1
UI/UX: 0 |
---------------------------------------------+------------------------
A particular trigger is when run within pytest which by default creates
fake stdio handles, and very indirect prompt_toolkit spits the dummy with
a io.UnsupportedOperation . ipdb could behave a bit better in this
situation, but the buck stops with django . Unless it was explicitly told
to use ipdb , it should fallback to pdb in the event of any exception.
{{{
Warning: Output is not a terminal (fd=8).
Traceback (most recent call last):
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
459, in _importconftest
return self._conftestpath2mod[key]
KeyError: PosixPath('/home/jayvdb/projects/django/.../tests/conftest.py')
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.8/site-packages/prompt_toolkit/input/vt100.py",
line 50, in __init__
stdin.fileno()
File "/usr/lib/python3.8/site-packages/_pytest/capture.py", line 711, in
fileno
raise UnsupportedOperation("redirected stdin is pseudofile, has no
fileno()")
io.UnsupportedOperation: redirected stdin is pseudofile, has no fileno()
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib64/python3.8/runpy.py", line 193, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib64/python3.8/runpy.py", line 86, in _run_code
exec(code, run_globals)
File "/usr/lib/python3.8/site-packages/pytest/__main__.py", line 7, in
<module>
raise SystemExit(pytest.main())
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
73, in main
config = _prepareconfig(args, plugins)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
223, in _prepareconfig
return pluginmanager.hook.pytest_cmdline_parse(
File "/usr/lib/python3.8/site-packages/pluggy/hooks.py", line 286, in
__call__
return self._hookexec(self, self.get_hookimpls(), kwargs)
File "/usr/lib/python3.8/site-packages/pluggy/manager.py", line 93, in
_hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "/usr/lib/python3.8/site-packages/pluggy/manager.py", line 84, in
<lambda>
self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
File "/usr/lib/python3.8/site-packages/pluggy/callers.py", line 203, in
_multicall
gen.send(outcome)
File "/usr/lib/python3.8/site-packages/_pytest/helpconfig.py", line 89,
in pytest_cmdline_parse
config = outcome.get_result()
File "/usr/lib/python3.8/site-packages/pluggy/callers.py", line 80, in
get_result
raise ex[1].with_traceback(ex[2])
File "/usr/lib/python3.8/site-packages/pluggy/callers.py", line 187, in
_multicall
res = hook_impl.function(*args)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
794, in pytest_cmdline_parse
self.parse(args)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
1000, in parse
self._preparse(args, addopts=addopts)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
957, in _preparse
self.hook.pytest_load_initial_conftests(
File "/usr/lib/python3.8/site-packages/pluggy/hooks.py", line 286, in
__call__
return self._hookexec(self, self.get_hookimpls(), kwargs)
File "/usr/lib/python3.8/site-packages/pluggy/manager.py", line 93, in
_hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "/usr/lib/python3.8/site-packages/pluggy/manager.py", line 84, in
<lambda>
self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
File "/usr/lib/python3.8/site-packages/pluggy/callers.py", line 208, in
_multicall
return outcome.get_result()
File "/usr/lib/python3.8/site-packages/pluggy/callers.py", line 80, in
get_result
raise ex[1].with_traceback(ex[2])
File "/usr/lib/python3.8/site-packages/pluggy/callers.py", line 187, in
_multicall
res = hook_impl.function(*args)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
857, in pytest_load_initial_conftests
self.pluginmanager._set_initial_conftests(early_config.known_args_namespace)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
405, in _set_initial_conftests
self._try_load_conftest(anchor)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
416, in _try_load_conftest
self._getconftestmodules(x)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
437, in _getconftestmodules
mod = self._importconftest(conftestpath)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
484, in _importconftest
self.consider_conftest(mod)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
537, in consider_conftest
self.register(conftestmodule, name=conftestmodule.__file__)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
350, in register
self.consider_module(plugin)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
543, in consider_module
self._import_plugin_specs(getattr(mod, "pytest_plugins", []))
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
548, in _import_plugin_specs
self.import_plugin(import_spec)
File "/usr/lib/python3.8/site-packages/_pytest/config/__init__.py", line
575, in import_plugin
__import__(importspec)
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in
_find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "/usr/lib/python3.8/site-packages/_pytest/assertion/rewrite.py",
line 143, in exec_module
exec(co, module.__dict__)
File "/usr/lib/python3.8/site-packages/pytest_djangoapp/plugin.py", line
6, in <module>
from django.test.runner import DiscoverRunner
File "/usr/lib/python3.8/site-packages/django/test/runner.py", line 23,
in <module>
import ipdb as pdb
File "/usr/lib/python3.8/site-packages/ipdb/__init__.py", line 7, in
<module>
from ipdb.__main__ import set_trace, post_mortem, pm, run
# noqa
File "/usr/lib/python3.8/site-packages/ipdb/__main__.py", line 33, in
<module>
ipapp.initialize(['--no-term-title'])
File "<decorator-gen-128>", line 2, in initialize
File "/usr/lib/python3.8/site-packages/traitlets/config/application.py",
line 87, in catch_config_error
return method(app, *args, **kwargs)
File "/usr/lib/python3.8/site-packages/IPython/terminal/ipapp.py", line
317, in initialize
self.init_shell()
File "/usr/lib/python3.8/site-packages/IPython/terminal/ipapp.py", line
331, in init_shell
self.shell = self.interactive_shell_class.instance(parent=self,
File "/usr/lib/python3.8/site-
packages/traitlets/config/configurable.py", line 412, in instance
inst = cls(*args, **kwargs)
File "/usr/lib/python3.8/site-
packages/IPython/terminal/interactiveshell.py", line 525, in __init__
self.init_prompt_toolkit_cli()
File "/usr/lib/python3.8/site-
packages/IPython/terminal/interactiveshell.py", line 318, in
init_prompt_toolkit_cli
self.pt_app = PromptSession(
File "/usr/lib/python3.8/site-
packages/prompt_toolkit/shortcuts/prompt.py", line 458, in __init__
self.app = self._create_application(editing_mode, erase_when_done)
File "/usr/lib/python3.8/site-
packages/prompt_toolkit/shortcuts/prompt.py", line 701, in
_create_application
application: Application[_T] = Application(
File "/usr/lib/python3.8/site-
packages/prompt_toolkit/application/application.py", line 267, in __init__
self.input = input or session.input
File "/usr/lib/python3.8/site-
packages/prompt_toolkit/application/current.py", line 57, in input
self._input = create_input()
File "/usr/lib/python3.8/site-
packages/prompt_toolkit/input/defaults.py", line 43, in create_input
return Vt100Input(stdin)
File "/usr/lib/python3.8/site-packages/prompt_toolkit/input/vt100.py",
line 57, in __init__
raise io.UnsupportedOperation("Stdin is not a terminal.")
io.UnsupportedOperation: Stdin is not a terminal.
If you suspect this is an IPython 7.15.0 bug, please report it at:
https://github.com/ipython/ipython/issues
or send an email to the mailing list at ipython-...@python.org
You can print a more detailed traceback right now with "%tb", or use
"%debug"
to interactively debug it.
Extra-detailed tracebacks for bug-reporting purposes can be enabled via:
c.Application.verbose_crash=True
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/31704>
Django <https://code.djangoproject.com/>
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