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authorBenjamin Peterson <benjamin@python.org>2017-02-09 22:35:38 -0800
committerBenjamin Peterson <benjamin@python.org>2017-02-09 22:35:38 -0800
commit2328d19475109a50de26fa42832a5286824b0391 (patch)
tree57b6e2b32c0dd431acd5e804c14c726e5d03e81c
parent9a86ff08b5e9595a0801045ba3a6738a0bd3783f (diff)
parent68aff055c847d6f8cfbf75e413f514d98573d43d (diff)
downloadcpython-2328d19475109a50de26fa42832a5286824b0391.tar.gz
merge 3.6
-rw-r--r--Doc/using/cmdline.rst12
1 files changed, 7 insertions, 5 deletions
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index c0e64d66f2..195f63f0a3 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -396,21 +396,23 @@ Miscellaneous options
defines the following possible values:
* ``-X faulthandler`` to enable :mod:`faulthandler`;
- * ``-X showrefcount`` to enable the output of the total reference count
- and memory blocks (only works on debug builds);
+ * ``-X showrefcount`` to output the total reference count and number of used
+ memory blocks when the program finishes or after each statement in the
+ interactive interpreter. This only works on debug builds.
* ``-X tracemalloc`` to start tracing Python memory allocations using the
:mod:`tracemalloc` module. By default, only the most recent frame is
stored in a traceback of a trace. Use ``-X tracemalloc=NFRAME`` to start
tracing with a traceback limit of *NFRAME* frames. See the
:func:`tracemalloc.start` for more information.
- * ``-X showalloccount`` to enable the output of the total count of allocated
- objects for each type (only works when built with ``COUNT_ALLOCS`` defined);
+ * ``-X showalloccount`` to output the total count of allocated objects for
+ each type when the program finishes. This only works when Python was built with
+ ``COUNT_ALLOCS`` defined.
It also allows passing arbitrary values and retrieving them through the
:data:`sys._xoptions` dictionary.
.. versionchanged:: 3.2
- It is now allowed to pass :option:`-X` with CPython.
+ The :option:`-X` option was added.
.. versionadded:: 3.3
The ``-X faulthandler`` option.