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| author | Ezio Melotti <ezio.melotti@gmail.com> | 2013-03-25 23:59:56 (GMT) |
|---|---|---|
| committer | Ezio Melotti <ezio.melotti@gmail.com> | 2013-03-25 23:59:56 (GMT) |
| commit | 1f8898a5916b942c86ee8716c37d2db388e7bf2f (patch) | |
| tree | 100c2cdc7d7628190538154de04512cf5c7fe345 /Doc/using | |
| parent | 84e431648917234f8e3823b60f31d701491a988e (diff) | |
| download | cpython-1f8898a5916b942c86ee8716c37d2db388e7bf2f.zip cpython-1f8898a5916b942c86ee8716c37d2db388e7bf2f.tar.gz cpython-1f8898a5916b942c86ee8716c37d2db388e7bf2f.tar.bz2 | |
#17323: The "[X refs, Y blocks]" printed by debug builds has been disabled by default. It can be re-enabled with the `-X showrefcount` option.
Diffstat (limited to 'Doc/using')
| -rw-r--r-- | Doc/using/cmdline.rst | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst index 2703684..adb3739 100644 --- a/Doc/using/cmdline.rst +++ b/Doc/using/cmdline.rst @@ -358,13 +358,21 @@ Miscellaneous options .. cmdoption:: -X Reserved for various implementation-specific options. CPython currently - defines just one, you can use ``-X faulthander`` to enable - :data:`faulthandler`. It also allows to pass arbitrary values and retrieve - them through the :data:`sys._xoptions` dictionary. + defines two possible values: + + * ``-X faulthander`` to enable :mod:`faulthandler`; + * ``-X showrefcount`` to enable the output of the total reference count + and memory blocks (only works on debug builds); + + It also allows to pass arbitrary values and retrieve them through the + :data:`sys._xoptions` dictionary. .. versionchanged:: 3.2 It is now allowed to pass :option:`-X` with CPython. + .. versionadded:: 3.4 + The ``-X showrefcount`` option. + Options you shouldn't use ~~~~~~~~~~~~~~~~~~~~~~~~~ |