mirror of https://github.com/python/cpython
Issue #28496: Mark up constants 0, 1 and -1 that denote return values or
special input values as literal text.
This commit is contained in:
Serhiy Storchaka
commit
f526e7ef7a
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@ -338,7 +338,7 @@ Other objects
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``p`` (:class:`bool`) [int]
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Tests the value passed in for truth (a boolean **p**\ redicate) and converts
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the result to its equivalent C true/false integer value.
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Sets the int to 1 if the expression was true and 0 if it was false.
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Sets the int to ``1`` if the expression was true and ``0`` if it was false.
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This accepts any valid Python value. See :ref:`truth` for more
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information about how Python tests values for truth.
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@ -156,7 +156,7 @@ a buffer, see :c:func:`PyObject_GetBuffer`.
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.. c:member:: int ndim
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The number of dimensions the memory represents as an n-dimensional array.
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If it is 0, :c:member:`~Py_buffer.buf` points to a single item representing
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If it is ``0``, :c:member:`~Py_buffer.buf` points to a single item representing
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a scalar. In this case, :c:member:`~Py_buffer.shape`, :c:member:`~Py_buffer.strides`
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and :c:member:`~Py_buffer.suboffsets` MUST be *NULL*.
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@ -427,7 +427,7 @@ Buffer-related functions
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.. c:function:: int PyObject_CheckBuffer(PyObject *obj)
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Return 1 if *obj* supports the buffer interface otherwise 0. When 1 is
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Return ``1`` if *obj* supports the buffer interface otherwise ``0``. When ``1`` is
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returned, it doesn't guarantee that :c:func:`PyObject_GetBuffer` will
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succeed.
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@ -437,7 +437,7 @@ Buffer-related functions
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Send a request to *exporter* to fill in *view* as specified by *flags*.
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If the exporter cannot provide a buffer of the exact type, it MUST raise
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:c:data:`PyExc_BufferError`, set :c:member:`view->obj` to *NULL* and
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return -1.
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return ``-1``.
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On success, fill in *view*, set :c:member:`view->obj` to a new reference
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to *exporter* and return 0. In the case of chained buffer providers
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@ -468,9 +468,9 @@ Buffer-related functions
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.. c:function:: int PyBuffer_IsContiguous(Py_buffer *view, char order)
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Return 1 if the memory defined by the *view* is C-style (*order* is
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Return ``1`` if the memory defined by the *view* is C-style (*order* is
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``'C'``) or Fortran-style (*order* is ``'F'``) :term:`contiguous` or either one
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(*order* is ``'A'``). Return 0 otherwise.
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(*order* is ``'A'``). Return ``0`` otherwise.
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.. c:function:: void PyBuffer_FillContiguousStrides(int ndim, Py_ssize_t *shape, Py_ssize_t *strides, Py_ssize_t itemsize, char order)
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@ -492,7 +492,7 @@ Buffer-related functions
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On success, set :c:member:`view->obj` to a new reference to *exporter* and
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return 0. Otherwise, raise :c:data:`PyExc_BufferError`, set
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:c:member:`view->obj` to *NULL* and return -1;
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:c:member:`view->obj` to *NULL* and return ``-1``;
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If this function is used as part of a :ref:`getbufferproc <buffer-structs>`,
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*exporter* MUST be set to the exporting object and *flags* must be passed
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@ -120,19 +120,19 @@ Refer to :ref:`using-capsules` for more information on using these objects.
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guaranteed to succeed.
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Return a nonzero value if the object is valid and matches the name passed in.
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Return 0 otherwise. This function will not fail.
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Return ``0`` otherwise. This function will not fail.
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.. c:function:: int PyCapsule_SetContext(PyObject *capsule, void *context)
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Set the context pointer inside *capsule* to *context*.
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Return 0 on success. Return nonzero and set an exception on failure.
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Return ``0`` on success. Return nonzero and set an exception on failure.
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.. c:function:: int PyCapsule_SetDestructor(PyObject *capsule, PyCapsule_Destructor destructor)
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Set the destructor inside *capsule* to *destructor*.
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Return 0 on success. Return nonzero and set an exception on failure.
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Return ``0`` on success. Return nonzero and set an exception on failure.
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.. c:function:: int PyCapsule_SetName(PyObject *capsule, const char *name)
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@ -140,11 +140,11 @@ Refer to :ref:`using-capsules` for more information on using these objects.
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outlive the capsule. If the previous *name* stored in the capsule was not
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*NULL*, no attempt is made to free it.
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Return 0 on success. Return nonzero and set an exception on failure.
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Return ``0`` on success. Return nonzero and set an exception on failure.
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.. c:function:: int PyCapsule_SetPointer(PyObject *capsule, void *pointer)
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Set the void pointer inside *capsule* to *pointer*. The pointer may not be
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*NULL*.
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Return 0 on success. Return nonzero and set an exception on failure.
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Return ``0`` on success. Return nonzero and set an exception on failure.
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@ -185,10 +185,10 @@ Importing Modules
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Return the magic number for Python bytecode files (a.k.a. :file:`.pyc` file).
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The magic number should be present in the first four bytes of the bytecode
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file, in little-endian byte order. Returns -1 on error.
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file, in little-endian byte order. Returns ``-1`` on error.
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.. versionchanged:: 3.3
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Return value of -1 upon failure.
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Return value of ``-1`` upon failure.
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.. c:function:: const char * PyImport_GetMagicTag()
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@ -44,8 +44,8 @@ Initializing and finalizing the interpreter
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.. c:function:: void Py_InitializeEx(int initsigs)
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This function works like :c:func:`Py_Initialize` if *initsigs* is 1. If
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*initsigs* is 0, it skips initialization registration of signal handlers, which
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This function works like :c:func:`Py_Initialize` if *initsigs* is ``1``. If
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*initsigs* is ``0``, it skips initialization registration of signal handlers, which
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might be useful when Python is embedded.
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@ -123,7 +123,7 @@ Process-wide parameters
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If :c:func:`Py_FinalizeEx` is called, this function will need to be called
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again in order to affect subsequent calls to :c:func:`Py_Initialize`.
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Returns 0 if successful, a nonzero value on error (e.g. calling after the
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Returns ``0`` if successful, a nonzero value on error (e.g. calling after the
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interpreter has already been initialized).
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.. versionadded:: 3.4
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@ -358,7 +358,7 @@ Process-wide parameters
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- If the name of an existing script is passed in ``argv[0]``, the absolute
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path of the directory where the script is located is prepended to
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:data:`sys.path`.
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- Otherwise (that is, if *argc* is 0 or ``argv[0]`` doesn't point
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- Otherwise (that is, if *argc* is ``0`` or ``argv[0]`` doesn't point
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to an existing file name), an empty string is prepended to
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:data:`sys.path`, which is the same as prepending the current working
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directory (``"."``).
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@ -368,7 +368,7 @@ Process-wide parameters
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.. note::
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It is recommended that applications embedding the Python interpreter
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for purposes other than executing a single script pass 0 as *updatepath*,
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for purposes other than executing a single script pass ``0`` as *updatepath*,
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and update :data:`sys.path` themselves if desired.
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See `CVE-2008-5983 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
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@ -380,14 +380,14 @@ Process-wide parameters
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.. versionadded:: 3.1.3
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.. XXX impl. doesn't seem consistent in allowing 0/NULL for the params;
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.. XXX impl. doesn't seem consistent in allowing ``0``/``NULL`` for the params;
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check w/ Guido.
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.. c:function:: void PySys_SetArgv(int argc, wchar_t **argv)
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This function works like :c:func:`PySys_SetArgvEx` with *updatepath* set
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to 1 unless the :program:`python` interpreter was started with the
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to ``1`` unless the :program:`python` interpreter was started with the
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:option:`-I`.
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Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a
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@ -727,10 +727,10 @@ with sub-interpreters:
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.. c:function:: int PyGILState_Check()
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Return 1 if the current thread is holding the GIL and 0 otherwise.
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Return ``1`` if the current thread is holding the GIL and ``0`` otherwise.
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This function can be called from any thread at any time.
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Only if it has had its Python thread state initialized and currently is
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holding the GIL will it return 1.
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holding the GIL will it return ``1``.
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This is mainly a helper/diagnostic function. It can be useful
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for example in callback contexts or memory allocation functions when
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knowing that the GIL is locked can allow the caller to perform sensitive
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@ -1000,8 +1000,8 @@ pointer and a void pointer argument.
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.. index:: single: Py_AddPendingCall()
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Schedule a function to be called from the main interpreter thread. On
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success, 0 is returned and *func* is queued for being called in the
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main thread. On failure, -1 is returned without setting any exception.
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success, ``0`` is returned and *func* is queued for being called in the
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main thread. On failure, ``-1`` is returned without setting any exception.
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When successfully queued, *func* will be *eventually* called from the
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main interpreter thread with the argument *arg*. It will be called
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@ -1012,7 +1012,7 @@ pointer and a void pointer argument.
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* with the main thread holding the :term:`global interpreter lock`
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(*func* can therefore use the full C API).
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*func* must return 0 on success, or -1 on failure with an exception
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*func* must return ``0`` on success, or ``-1`` on failure with an exception
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set. *func* won't be interrupted to perform another asynchronous
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notification recursively, but it can still be interrupted to switch
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threads if the global interpreter lock is released.
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@ -232,7 +232,7 @@ All integers are implemented as "long" integer objects of arbitrary size.
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method (if present) to convert it to a :c:type:`PyLongObject`.
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If the value of *obj* is out of range for an :c:type:`unsigned long`,
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return the reduction of that value modulo :const:`ULONG_MAX + 1`.
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return the reduction of that value modulo ``ULONG_MAX + 1``.
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.. c:function:: unsigned long long PyLong_AsUnsignedLongLongMask(PyObject *obj)
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@ -242,7 +242,7 @@ All integers are implemented as "long" integer objects of arbitrary size.
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method (if present) to convert it to a :c:type:`PyLongObject`.
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If the value of *obj* is out of range for an :c:type:`unsigned long long`,
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return the reduction of that value modulo :const:`PY_ULLONG_MAX + 1`.
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return the reduction of that value modulo ``PY_ULLONG_MAX + 1``.
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.. c:function:: double PyLong_AsDouble(PyObject *pylong)
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@ -266,7 +266,7 @@ Number Protocol
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.. c:function:: Py_ssize_t PyNumber_AsSsize_t(PyObject *o, PyObject *exc)
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Returns *o* converted to a Py_ssize_t value if *o* can be interpreted as an
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integer. If the call fails, an exception is raised and -1 is returned.
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integer. If the call fails, an exception is raised and ``-1`` is returned.
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If *o* can be converted to a Python int but the attempt to
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convert to a Py_ssize_t value would raise an :exc:`OverflowError`, then the
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@ -114,7 +114,7 @@ or :class:`frozenset` or instances of their subtypes.
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.. c:function:: int PySet_Contains(PyObject *anyset, PyObject *key)
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Return 1 if found, 0 if not found, and -1 if an error is encountered. Unlike
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Return ``1`` if found, ``0`` if not found, and ``-1`` if an error is encountered. Unlike
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the Python :meth:`__contains__` method, this function does not automatically
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convert unhashable sets into temporary frozensets. Raise a :exc:`TypeError` if
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the *key* is unhashable. Raise :exc:`PyExc_SystemError` if *anyset* is not a
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@ -125,8 +125,8 @@ or :class:`frozenset` or instances of their subtypes.
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Add *key* to a :class:`set` instance. Also works with :class:`frozenset`
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instances (like :c:func:`PyTuple_SetItem` it can be used to fill-in the values
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of brand new frozensets before they are exposed to other code). Return 0 on
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success or -1 on failure. Raise a :exc:`TypeError` if the *key* is
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of brand new frozensets before they are exposed to other code). Return ``0`` on
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success or ``-1`` on failure. Raise a :exc:`TypeError` if the *key* is
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unhashable. Raise a :exc:`MemoryError` if there is no room to grow. Raise a
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:exc:`SystemError` if *set* is not an instance of :class:`set` or its
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subtype.
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@ -138,7 +138,7 @@ subtypes but not for instances of :class:`frozenset` or its subtypes.
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.. c:function:: int PySet_Discard(PyObject *set, PyObject *key)
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Return 1 if found and removed, 0 if not found (no action taken), and -1 if an
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Return ``1`` if found and removed, ``0`` if not found (no action taken), and ``-1`` if an
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error is encountered. Does not raise :exc:`KeyError` for missing keys. Raise a
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:exc:`TypeError` if the *key* is unhashable. Unlike the Python :meth:`~set.discard`
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method, this function does not automatically convert unhashable sets into
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@ -32,9 +32,9 @@ Slice Objects
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assuming a sequence of length *length*. Treats indices greater than
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*length* as errors.
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Returns 0 on success and -1 on error with no exception set (unless one of
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Returns ``0`` on success and ``-1`` on error with no exception set (unless one of
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the indices was not :const:`None` and failed to be converted to an integer,
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in which case -1 is returned with an exception set).
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in which case ``-1`` is returned with an exception set).
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You probably do not want to use this function.
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@ -51,7 +51,7 @@ Slice Objects
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of bounds indices are clipped in a manner consistent with the handling of
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normal slices.
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Returns 0 on success and -1 on error with exception set.
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Returns ``0`` on success and ``-1`` on error with exception set.
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.. versionchanged:: 3.2
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The parameter type for the *slice* parameter was ``PySliceObject*``
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@ -291,7 +291,7 @@ definition with the same method name.
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handles use of the :keyword:`del` statement on that attribute more correctly
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than :c:macro:`T_OBJECT`.
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:attr:`flags` can be 0 for write and read access or :c:macro:`READONLY` for
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:attr:`flags` can be ``0`` for write and read access or :c:macro:`READONLY` for
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read-only access. Using :c:macro:`T_STRING` for :attr:`type` implies
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:c:macro:`READONLY`. Only :c:macro:`T_OBJECT` and :c:macro:`T_OBJECT_EX`
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members can be deleted. (They are set to *NULL*).
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@ -1278,7 +1278,7 @@ Buffer Object Structures
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steps:
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(1) Check if the request can be met. If not, raise :c:data:`PyExc_BufferError`,
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set :c:data:`view->obj` to *NULL* and return -1.
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set :c:data:`view->obj` to *NULL* and return ``-1``.
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(2) Fill in the requested fields.
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@ -1286,7 +1286,7 @@ Buffer Object Structures
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(4) Set :c:data:`view->obj` to *exporter* and increment :c:data:`view->obj`.
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(5) Return 0.
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(5) Return ``0``.
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If *exporter* is part of a chain or tree of buffer providers, two main
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schemes can be used:
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@ -1329,7 +1329,7 @@ Buffer Object Structures
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(1) Decrement an internal counter for the number of exports.
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(2) If the counter is 0, free all memory associated with *view*.
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(2) If the counter is ``0``, free all memory associated with *view*.
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The exporter MUST use the :c:member:`~Py_buffer.internal` field to keep
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track of buffer-specific resources. This field is guaranteed to remain
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@ -102,7 +102,7 @@ access internal read-only data of Unicode objects:
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.. XXX expand on when it is not required
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Returns 0 on success and -1 with an exception set on failure, which in
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Returns ``0`` on success and ``-1`` with an exception set on failure, which in
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particular happens if memory allocation fails.
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.. versionadded:: 3.3
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@ -255,57 +255,57 @@ the Python configuration.
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.. c:function:: int Py_UNICODE_ISSPACE(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a whitespace character.
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Return ``1`` or ``0`` depending on whether *ch* is a whitespace character.
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.. c:function:: int Py_UNICODE_ISLOWER(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a lowercase character.
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Return ``1`` or ``0`` depending on whether *ch* is a lowercase character.
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.. c:function:: int Py_UNICODE_ISUPPER(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is an uppercase character.
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Return ``1`` or ``0`` depending on whether *ch* is an uppercase character.
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.. c:function:: int Py_UNICODE_ISTITLE(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a titlecase character.
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Return ``1`` or ``0`` depending on whether *ch* is a titlecase character.
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.. c:function:: int Py_UNICODE_ISLINEBREAK(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a linebreak character.
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Return ``1`` or ``0`` depending on whether *ch* is a linebreak character.
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.. c:function:: int Py_UNICODE_ISDECIMAL(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a decimal character.
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Return ``1`` or ``0`` depending on whether *ch* is a decimal character.
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.. c:function:: int Py_UNICODE_ISDIGIT(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a digit character.
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Return ``1`` or ``0`` depending on whether *ch* is a digit character.
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.. c:function:: int Py_UNICODE_ISNUMERIC(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is a numeric character.
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Return ``1`` or ``0`` depending on whether *ch* is a numeric character.
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.. c:function:: int Py_UNICODE_ISALPHA(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is an alphabetic character.
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Return ``1`` or ``0`` depending on whether *ch* is an alphabetic character.
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||||
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.. c:function:: int Py_UNICODE_ISALNUM(Py_UNICODE ch)
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Return 1 or 0 depending on whether *ch* is an alphanumeric character.
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||||
Return ``1`` or ``0`` depending on whether *ch* is an alphanumeric character.
|
||||
|
||||
|
||||
.. c:function:: int Py_UNICODE_ISPRINTABLE(Py_UNICODE ch)
|
||||
|
||||
Return 1 or 0 depending on whether *ch* is a printable character.
|
||||
Return ``1`` or ``0`` depending on whether *ch* is a printable character.
|
||||
Nonprintable characters are those characters defined in the Unicode character
|
||||
database as "Other" or "Separator", excepting the ASCII space (0x20) which is
|
||||
considered printable. (Note that printable characters in this context are
|
||||
|
|
@ -908,7 +908,7 @@ wchar_t Support
|
|||
.. c:function:: PyObject* PyUnicode_FromWideChar(const wchar_t *w, Py_ssize_t size)
|
||||
|
||||
Create a Unicode object from the :c:type:`wchar_t` buffer *w* of the given *size*.
|
||||
Passing -1 as the *size* indicates that the function must itself compute the length,
|
||||
Passing ``-1`` as the *size* indicates that the function must itself compute the length,
|
||||
using wcslen.
|
||||
Return *NULL* on failure.
|
||||
|
||||
|
|
@ -918,7 +918,7 @@ wchar_t Support
|
|||
Copy the Unicode object contents into the :c:type:`wchar_t` buffer *w*. At most
|
||||
*size* :c:type:`wchar_t` characters are copied (excluding a possibly trailing
|
||||
null termination character). Return the number of :c:type:`wchar_t` characters
|
||||
copied or -1 in case of an error. Note that the resulting :c:type:`wchar_t*`
|
||||
copied or ``-1`` in case of an error. Note that the resulting :c:type:`wchar_t*`
|
||||
string may or may not be null-terminated. It is the responsibility of the caller
|
||||
to make sure that the :c:type:`wchar_t*` string is null-terminated in case this is
|
||||
required by the application. Also, note that the :c:type:`wchar_t*` string
|
||||
|
|
@ -1566,7 +1566,7 @@ They all return *NULL* or ``-1`` if an exception occurs.
|
|||
.. c:function:: PyObject* PyUnicode_Splitlines(PyObject *s, int keepend)
|
||||
|
||||
Split a Unicode string at line breaks, returning a list of Unicode strings.
|
||||
CRLF is considered to be one line break. If *keepend* is 0, the Line break
|
||||
CRLF is considered to be one line break. If *keepend* is ``0``, the Line break
|
||||
characters are not included in the resulting strings.
|
||||
|
||||
|
||||
|
|
@ -1596,16 +1596,16 @@ They all return *NULL* or ``-1`` if an exception occurs.
|
|||
.. c:function:: Py_ssize_t PyUnicode_Tailmatch(PyObject *str, PyObject *substr, \
|
||||
Py_ssize_t start, Py_ssize_t end, int direction)
|
||||
|
||||
Return 1 if *substr* matches ``str[start:end]`` at the given tail end
|
||||
(*direction* == -1 means to do a prefix match, *direction* == 1 a suffix match),
|
||||
0 otherwise. Return ``-1`` if an error occurred.
|
||||
Return ``1`` if *substr* matches ``str[start:end]`` at the given tail end
|
||||
(*direction* == ``-1`` means to do a prefix match, *direction* == ``1`` a suffix match),
|
||||
``0`` otherwise. Return ``-1`` if an error occurred.
|
||||
|
||||
|
||||
.. c:function:: Py_ssize_t PyUnicode_Find(PyObject *str, PyObject *substr, \
|
||||
Py_ssize_t start, Py_ssize_t end, int direction)
|
||||
|
||||
Return the first position of *substr* in ``str[start:end]`` using the given
|
||||
*direction* (*direction* == 1 means to do a forward search, *direction* == -1 a
|
||||
*direction* (*direction* == ``1`` means to do a forward search, *direction* == ``-1`` a
|
||||
backward search). The return value is the index of the first match; a value of
|
||||
``-1`` indicates that no match was found, and ``-2`` indicates that an error
|
||||
occurred and an exception has been set.
|
||||
|
|
@ -1615,8 +1615,8 @@ They all return *NULL* or ``-1`` if an exception occurs.
|
|||
Py_ssize_t start, Py_ssize_t end, int direction)
|
||||
|
||||
Return the first position of the character *ch* in ``str[start:end]`` using
|
||||
the given *direction* (*direction* == 1 means to do a forward search,
|
||||
*direction* == -1 a backward search). The return value is the index of the
|
||||
the given *direction* (*direction* == ``1`` means to do a forward search,
|
||||
*direction* == ``-1`` a backward search). The return value is the index of the
|
||||
first match; a value of ``-1`` indicates that no match was found, and ``-2``
|
||||
indicates that an error occurred and an exception has been set.
|
||||
|
||||
|
|
@ -1634,19 +1634,19 @@ They all return *NULL* or ``-1`` if an exception occurs.
|
|||
PyObject *replstr, Py_ssize_t maxcount)
|
||||
|
||||
Replace at most *maxcount* occurrences of *substr* in *str* with *replstr* and
|
||||
return the resulting Unicode object. *maxcount* == -1 means replace all
|
||||
return the resulting Unicode object. *maxcount* == ``-1`` means replace all
|
||||
occurrences.
|
||||
|
||||
|
||||
.. c:function:: int PyUnicode_Compare(PyObject *left, PyObject *right)
|
||||
|
||||
Compare two strings and return -1, 0, 1 for less than, equal, and greater than,
|
||||
Compare two strings and return ``-1``, ``0``, ``1`` for less than, equal, and greater than,
|
||||
respectively.
|
||||
|
||||
|
||||
.. c:function:: int PyUnicode_CompareWithASCIIString(PyObject *uni, const char *string)
|
||||
|
||||
Compare a unicode object, *uni*, with *string* and return -1, 0, 1 for less
|
||||
Compare a unicode object, *uni*, with *string* and return ``-1``, ``0``, ``1`` for less
|
||||
than, equal, and greater than, respectively. It is best to pass only
|
||||
ASCII-encoded strings, but the function interprets the input string as
|
||||
ISO-8859-1 if it contains non-ASCII characters.
|
||||
|
|
|
|||
Loading…
Reference in New Issue