[pull] main from python:main

Doc/c-api/long.rst

@@ -687,7 +687,7 @@ Export API
 
 .. versionadded:: 3.14
 
-.. c:struct:: PyLongLayout
+.. c:type:: PyLongLayout
 
    Layout of an array of "digits" ("limbs" in the GMP terminology), used to
    represent absolute value for arbitrary precision integers.
@@ -727,15 +727,15 @@ Export API
 
    Get the native layout of Python :class:`int` objects.
 
-   See the :c:struct:`PyLongLayout` structure.
+   See the :c:type:`PyLongLayout` structure.
 
    The function must not be called before Python initialization nor after
    Python finalization. The returned layout is valid until Python is
    finalized. The layout is the same for all Python sub-interpreters
    in a process, and so it can be cached.
 
 
-.. c:struct:: PyLongExport
+.. c:type:: PyLongExport
 
    Export of a Python :class:`int` object.
 
@@ -769,7 +769,7 @@ Export API
 
    Export a Python :class:`int` object.
 
-   *export_long* must point to a :c:struct:`PyLongExport` structure allocated
+   *export_long* must point to a :c:type:`PyLongExport` structure allocated
    by the caller. It must not be ``NULL``.
 
    On success, fill in *\*export_long* and return ``0``.
@@ -799,7 +799,7 @@ The :c:type:`PyLongWriter` API can be used to import an integer.
 
 .. versionadded:: 3.14
 
-.. c:struct:: PyLongWriter
+.. c:type:: PyLongWriter
 
    A Python :class:`int` writer instance.
 
@@ -827,7 +827,7 @@ The :c:type:`PyLongWriter` API can be used to import an integer.
    The layout of *digits* is described by :c:func:`PyLong_GetNativeLayout`.
 
    Digits must be in the range [``0``; ``(1 << bits_per_digit) - 1``]
-   (where the :c:struct:`~PyLongLayout.bits_per_digit` is the number of bits
+   (where the :c:type:`~PyLongLayout.bits_per_digit` is the number of bits
    per digit).
    Any unused most significant digits must be set to ``0``.
 

Doc/using/windows.rst

@@ -126,9 +126,8 @@ is also an unambiguous ``pymanager`` command. Scripted installs that are
 intending to use Python install manager should consider using ``pymanager``, due
 to the lower chance of encountering a conflict with existing installs. The only
 difference between the two commands is when running without any arguments:
-``py`` will install and launch your default interpreter, while ``pymanager``
-will display help (``pymanager exec ...`` provides equivalent behaviour to
-``py ...``).
+``py`` will launch your default interpreter, while ``pymanager`` will display
+help (``pymanager exec ...`` provides equivalent behaviour to ``py ...``).
 
 Each of these commands also has a windowed version that avoids creating a
 console window. These are ``pyw``, ``pythonw`` and ``pymanagerw``. A ``python3``
@@ -187,12 +186,11 @@ that virtual environment. In this scenario, the ``python`` command was likely
 already overridden and none of these checks occurred. However, this behaviour
 ensures that the ``py`` command can be used interchangeably.
 
-When you launch either ``python`` or ``py`` but do not have any runtimes
-installed, and the requested version is the default, it will be installed
-automatically and then launched. Otherwise, the requested version will be
-installed if automatic installation is configured (most likely by setting
-``PYTHON_MANAGER_AUTOMATIC_INSTALL`` to ``true``), or if the ``py exec`` or
-``pymanager exec`` forms of the command were used.
+When no runtimes are installed, any launch command will try to install the
+requested version and launch it. However, after any version is installed, only
+the ``py exec ...`` and ``pymanager exec ...`` commands will install if the
+requested version is absent. Other forms of commands will display an error and
+direct you to use ``py install`` first.
 
 
 Command help
@@ -301,6 +299,14 @@ To launch the runtime, directly execute the main executable (typically
 
    $> py install ... [-t=|--target=<PATH>] <TAG>
 
+The ``py exec`` command will install the requested runtime if it is not already
+present. This is controlled by the ``automatic_install`` configuration
+(:envvar:`PYTHON_MANAGER_AUTOMATIC_INSTALL`), and is enabled by default.
+If no runtimes are available at all, all launch commands will do an automatic
+install if the configuration setting allows. This is to ensure a good experience
+for new users, but should not generally be relied on rather than using the
+``py exec`` command or explicit install commands.
+
 
 .. _pymanager-offline:
 
@@ -426,9 +432,11 @@ customization.
        By default, :file:`%TEMP%`.
 
    * - ``automatic_install``
-     - ``PYTHON_MANAGER_AUTOMATIC_INSTALL``
-     - True to allow automatic installs when using ``py exec`` to launch.
-       Other commands will not automatically install.
+     - .. envvar:: PYTHON_MANAGER_AUTOMATIC_INSTALL
+     - True to allow automatic installs when using ``py exec`` to launch (or
+       ``py`` when no runtimes are installed yet).
+       Other commands will not automatically install, regardless of this
+       setting.
        By default, true.
 
    * - ``include_unmanaged``
@@ -777,7 +785,7 @@ Troubleshooting
 
 If your Python install manager does not seem to be working correctly, please
 work through these tests and fixes to see if it helps. If not, please report an
-issue at `our bug tracker <https://github.com/python/cpython/issues>`_,
+issue at `our bug tracker <https://github.com/python/pymanager/issues>`_,
 including any relevant log files (written to your :file:`%TEMP%` directory by
 default).
 

Include/cpython/longintrepr.h

@@ -138,45 +138,6 @@ _PyLong_CompactValue(const PyLongObject *op)
 
 #define PyUnstable_Long_CompactValue _PyLong_CompactValue
 
-
-/* --- Import/Export API -------------------------------------------------- */
-
-typedef struct PyLongLayout {
-    uint8_t bits_per_digit;
-    uint8_t digit_size;
-    int8_t digits_order;
-    int8_t digit_endianness;
-} PyLongLayout;
-
-PyAPI_FUNC(const PyLongLayout*) PyLong_GetNativeLayout(void);
-
-typedef struct PyLongExport {
-    int64_t value;
-    uint8_t negative;
-    Py_ssize_t ndigits;
-    const void *digits;
-    // Member used internally, must not be used for other purpose.
-    Py_uintptr_t _reserved;
-} PyLongExport;
-
-PyAPI_FUNC(int) PyLong_Export(
-    PyObject *obj,
-    PyLongExport *export_long);
-PyAPI_FUNC(void) PyLong_FreeExport(
-    PyLongExport *export_long);
-
-
-/* --- PyLongWriter API --------------------------------------------------- */
-
-typedef struct PyLongWriter PyLongWriter;
-
-PyAPI_FUNC(PyLongWriter*) PyLongWriter_Create(
-    int negative,
-    Py_ssize_t ndigits,
-    void **digits);
-PyAPI_FUNC(PyObject*) PyLongWriter_Finish(PyLongWriter *writer);
-PyAPI_FUNC(void) PyLongWriter_Discard(PyLongWriter *writer);
-
 #ifdef __cplusplus
 }
 #endif