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| author | Victor Stinner <victor.stinner@gmail.com> | 2017-11-20 15:14:07 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-11-20 15:14:07 (GMT) |
| commit | 44862df2eeec62adea20672b0fe2a5d3e160569e (patch) | |
| tree | e8f66bbbd2b7769ca42a292f553a7ecacb29da57 /Doc/using | |
| parent | 04dee2720851ec39e831beaa3edc0c59f228f461 (diff) | |
| download | cpython-44862df2eeec62adea20672b0fe2a5d3e160569e.zip cpython-44862df2eeec62adea20672b0fe2a5d3e160569e.tar.gz cpython-44862df2eeec62adea20672b0fe2a5d3e160569e.tar.bz2 | |
bpo-32047: -X dev enables asyncio debug mode (#4418)
The new -X dev command line option now also enables asyncio debug
mode.
Diffstat (limited to 'Doc/using')
| -rw-r--r-- | Doc/using/cmdline.rst | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst index 01869d1..bf27c1e 100644 --- a/Doc/using/cmdline.rst +++ b/Doc/using/cmdline.rst @@ -414,16 +414,18 @@ Miscellaneous options application. Typical usage is ``python3 -X importtime -c 'import asyncio'``. See also :envvar:`PYTHONPROFILEIMPORTTIME`. * ``-X dev`` enables the "developer mode": enable debug checks at runtime. - In short, ``python3 -X dev ...`` behaves as ``PYTHONMALLOC=debug python3 + In short, ``python3 -X dev ...`` behaves as ``PYTHONMALLOC=debug PYTHONASYNCIODEBUG=1 python3 -W default -X faulthandler ...``, except that the :envvar:`PYTHONMALLOC` - environment variable is not set in practice. Developer mode: + and :envvar:`PYTHONASYNCIODEBUG` environment variables are not set in + practice. Developer mode: * Add ``default`` warnings option. For example, display :exc:`DeprecationWarning` and :exc:`ResourceWarning` warnings. - * Install debug hooks on memory allocators as if :envvar:`PYTHONMALLOC` - is set to ``debug``. + * Install debug hooks on memory allocators: see the + :c:func:`PyMem_SetupDebugHooks` C function. * Enable the :mod:`faulthandler` module to dump the Python traceback on a crash. + * Enable :ref:`asyncio debug mode <asyncio-debug-mode>`. It also allows passing arbitrary values and retrieving them through the :data:`sys._xoptions` dictionary. |