Doc/tutorial/datastructures.rst

Doc/tutorial/introduction.rst

Doc/using/cmdline.rst

Doc/using/configure.rst

Doc/using/windows.rst

Doc/whatsnew/2.0.rst

Doc/whatsnew/2.1.rst

..cmdoption::--enable-loadable-sqlite-extensions

Support loadable extensions in the:mod:`_sqlite` extension module (default

is no).

Support loadable extensions in the:mod:`!_sqlite` extension module (default

is no) of the:mod:`sqlite3` module.

See the:meth:`sqlite3.Connection.enable_load_extension` method of the

:mod:`sqlite3` module.

Some Linux distribution packaging policies recommend against bundling

dependencies. For example, Fedora installs wheel packages in the

``/usr/share/python-wheels/`` directory and don't install the

:mod:`ensurepip._bundled` package.

:mod:`!ensurepip._bundled` package.

..versionadded::3.10

..cmdoption::--disable-test-modules

Don't build nor install test modules, like the:mod:`test` package or the

:mod:`_testcapi` extension module (built and installed by default).

:mod:`!_testcapi` extension module (built and installed by default).

..versionadded::3.10

* Display all warnings by default: the list of default warning filters is empty

in the:mod:`warnings` module.

* Add ``d`` to:data:`sys.abiflags`.

* Add:func:`sys.gettotalrefcount` function.

* Add:func:`!sys.gettotalrefcount` function.

* Add:option:`-X showrefcount <-X>` command line option.

* Add:option:`-d` command line option and:envvar:`PYTHONDEBUG` environment

variable to debug the parser.

* Check that deallocator functions don't change the current exception.

* The garbage collector (:func:`gc.collect` function) runs some basic checks

on objects consistency.

* The:c:macro:`Py_SAFE_DOWNCAST()` macro checks for integer underflow and

* The:c:macro:`!Py_SAFE_DOWNCAST()` macro checks for integer underflow and

overflow when downcasting from wide types to narrow types.

See also the:ref:`Python Development Mode<devmode>` and the

Effects:

* Define the ``Py_TRACE_REFS`` macro.

* Add:func:`sys.getobjects` function.

* Add:func:`!sys.getobjects` function.

* Add:envvar:`PYTHONDUMPREFS` environment variable.

The:envvar:`PYTHONDUMPREFS` environment variable can be used to dump

..cmdoption::--with-system-expat

Build the:mod:`pyexpat` module using an installed ``expat`` library

Build the:mod:`!pyexpat` module using an installed ``expat`` library

(default is no).

..cmdoption::--with-system-libmpdec