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# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001-2017, Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, 2017.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.6\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2018-05-26 11:10+0900\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Generated-By: Babel 2.5.1\n"
#: ../Doc/c-api/init.rst:8
msgid "Initialization, Finalization, and Threads"
msgstr ""
#: ../Doc/c-api/init.rst:12
msgid "Initializing and finalizing the interpreter"
msgstr ""
#: ../Doc/c-api/init.rst:30
msgid ""
"Initialize the Python interpreter. In an application embedding Python, "
"this should be called before using any other Python/C API functions; with"
" the exception of :c:func:`Py_SetProgramName`, :c:func:`Py_SetPythonHome`"
" and :c:func:`Py_SetPath`. This initializes the table of loaded modules "
"(``sys.modules``), and creates the fundamental modules :mod:`builtins`, "
":mod:`__main__` and :mod:`sys`. It also initializes the module search "
"path (``sys.path``). It does not set ``sys.argv``; use "
":c:func:`PySys_SetArgvEx` for that. This is a no-op when called for a "
"second time (without calling :c:func:`Py_FinalizeEx` first). There is no"
" return value; it is a fatal error if the initialization fails."
msgstr ""
#: ../Doc/c-api/init.rst:41
msgid ""
"On Windows, changes the console mode from ``O_TEXT`` to ``O_BINARY``, "
"which will also affect non-Python uses of the console using the C "
"Runtime."
msgstr ""
#: ../Doc/c-api/init.rst:47
msgid ""
"This function works like :c:func:`Py_Initialize` if *initsigs* is ``1``. "
"If *initsigs* is ``0``, it skips initialization registration of signal "
"handlers, which might be useful when Python is embedded."
msgstr ""
#: ../Doc/c-api/init.rst:54
msgid ""
"Return true (nonzero) when the Python interpreter has been initialized, "
"false (zero) if not. After :c:func:`Py_FinalizeEx` is called, this "
"returns false until :c:func:`Py_Initialize` is called again."
msgstr ""
#: ../Doc/c-api/init.rst:61
msgid ""
"Undo all initializations made by :c:func:`Py_Initialize` and subsequent "
"use of Python/C API functions, and destroy all sub-interpreters (see "
":c:func:`Py_NewInterpreter` below) that were created and not yet "
"destroyed since the last call to :c:func:`Py_Initialize`. Ideally, this "
"frees all memory allocated by the Python interpreter. This is a no-op "
"when called for a second time (without calling :c:func:`Py_Initialize` "
"again first). Normally the return value is ``0``. If there were errors "
"during finalization (flushing buffered data), ``-1`` is returned."
msgstr ""
#: ../Doc/c-api/init.rst:70
msgid ""
"This function is provided for a number of reasons. An embedding "
"application might want to restart Python without having to restart the "
"application itself. An application that has loaded the Python interpreter"
" from a dynamically loadable library (or DLL) might want to free all "
"memory allocated by Python before unloading the DLL. During a hunt for "
"memory leaks in an application a developer might want to free all memory "
"allocated by Python before exiting from the application."
msgstr ""
#: ../Doc/c-api/init.rst:78
msgid ""
"**Bugs and caveats:** The destruction of modules and objects in modules "
"is done in random order; this may cause destructors (:meth:`__del__` "
"methods) to fail when they depend on other objects (even functions) or "
"modules. Dynamically loaded extension modules loaded by Python are not "
"unloaded. Small amounts of memory allocated by the Python interpreter "
"may not be freed (if you find a leak, please report it). Memory tied up "
"in circular references between objects is not freed. Some memory "
"allocated by extension modules may not be freed. Some extensions may not"
" work properly if their initialization routine is called more than once; "
"this can happen if an application calls :c:func:`Py_Initialize` and "
":c:func:`Py_FinalizeEx` more than once."
msgstr ""
#: ../Doc/c-api/init.rst:94
msgid ""
"This is a backwards-compatible version of :c:func:`Py_FinalizeEx` that "
"disregards the return value."
msgstr ""
#: ../Doc/c-api/init.rst:99
msgid "Process-wide parameters"
msgstr ""
#: ../Doc/c-api/init.rst:109
msgid ""
"This function should be called before :c:func:`Py_Initialize`, if it is "
"called at all. It specifies which encoding and error handling to use with"
" standard IO, with the same meanings as in :func:`str.encode`."
msgstr ""
#: ../Doc/c-api/init.rst:113
msgid ""
"It overrides :envvar:`PYTHONIOENCODING` values, and allows embedding code"
" to control IO encoding when the environment variable does not work."
msgstr ""
#: ../Doc/c-api/init.rst:116
msgid ""
"``encoding`` and/or ``errors`` may be NULL to use "
":envvar:`PYTHONIOENCODING` and/or default values (depending on other "
"settings)."
msgstr ""
#: ../Doc/c-api/init.rst:120
msgid ""
"Note that :data:`sys.stderr` always uses the \"backslashreplace\" error "
"handler, regardless of this (or any other) setting."
msgstr ""
#: ../Doc/c-api/init.rst:123
msgid ""
"If :c:func:`Py_FinalizeEx` is called, this function will need to be "
"called again in order to affect subsequent calls to "
":c:func:`Py_Initialize`."
msgstr ""
#: ../Doc/c-api/init.rst:126
msgid ""
"Returns ``0`` if successful, a nonzero value on error (e.g. calling after"
" the interpreter has already been initialized)."
msgstr ""
#: ../Doc/c-api/init.rst:139
msgid ""
"This function should be called before :c:func:`Py_Initialize` is called "
"for the first time, if it is called at all. It tells the interpreter the"
" value of the ``argv[0]`` argument to the :c:func:`main` function of the "
"program (converted to wide characters). This is used by "
":c:func:`Py_GetPath` and some other functions below to find the Python "
"run-time libraries relative to the interpreter executable. The default "
"value is ``'python'``. The argument should point to a zero-terminated "
"wide character string in static storage whose contents will not change "
"for the duration of the program's execution. No code in the Python "
"interpreter will change the contents of this storage."
msgstr ""
#: ../Doc/c-api/init.rst:150 ../Doc/c-api/init.rst:264
#: ../Doc/c-api/init.rst:366 ../Doc/c-api/init.rst:393
#: ../Doc/c-api/init.rst:410
msgid ""
"Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a "
":c:type:`wchar_*` string."
msgstr ""
#: ../Doc/c-api/init.rst:158
msgid ""
"Return the program name set with :c:func:`Py_SetProgramName`, or the "
"default. The returned string points into static storage; the caller "
"should not modify its value."
msgstr ""
#: ../Doc/c-api/init.rst:165
msgid ""
"Return the *prefix* for installed platform-independent files. This is "
"derived through a number of complicated rules from the program name set "
"with :c:func:`Py_SetProgramName` and some environment variables; for "
"example, if the program name is ``'/usr/local/bin/python'``, the prefix "
"is ``'/usr/local'``. The returned string points into static storage; the "
"caller should not modify its value. This corresponds to the "
":makevar:`prefix` variable in the top-level :file:`Makefile` and the "
"``--prefix`` argument to the :program:`configure` script at build time. "
"The value is available to Python code as ``sys.prefix``. It is only "
"useful on Unix. See also the next function."
msgstr ""
#: ../Doc/c-api/init.rst:178
msgid ""
"Return the *exec-prefix* for installed platform-*dependent* files. This "
"is derived through a number of complicated rules from the program name "
"set with :c:func:`Py_SetProgramName` and some environment variables; for "
"example, if the program name is ``'/usr/local/bin/python'``, the exec-"
"prefix is ``'/usr/local'``. The returned string points into static "
"storage; the caller should not modify its value. This corresponds to the"
" :makevar:`exec_prefix` variable in the top-level :file:`Makefile` and "
"the ``--exec-prefix`` argument to the :program:`configure` script at "
"build time. The value is available to Python code as "
"``sys.exec_prefix``. It is only useful on Unix."
msgstr ""
#: ../Doc/c-api/init.rst:188
msgid ""
"Background: The exec-prefix differs from the prefix when platform "
"dependent files (such as executables and shared libraries) are installed "
"in a different directory tree. In a typical installation, platform "
"dependent files may be installed in the :file:`/usr/local/plat` subtree "
"while platform independent may be installed in :file:`/usr/local`."
msgstr ""
#: ../Doc/c-api/init.rst:194
msgid ""
"Generally speaking, a platform is a combination of hardware and software "
"families, e.g. Sparc machines running the Solaris 2.x operating system "
"are considered the same platform, but Intel machines running Solaris 2.x "
"are another platform, and Intel machines running Linux are yet another "
"platform. Different major revisions of the same operating system "
"generally also form different platforms. Non-Unix operating systems are "
"a different story; the installation strategies on those systems are so "
"different that the prefix and exec-prefix are meaningless, and set to the"
" empty string. Note that compiled Python bytecode files are platform "
"independent (but not independent from the Python version by which they "
"were compiled!)."
msgstr ""
#: ../Doc/c-api/init.rst:205
msgid ""
"System administrators will know how to configure the :program:`mount` or "
":program:`automount` programs to share :file:`/usr/local` between "
"platforms while having :file:`/usr/local/plat` be a different filesystem "
"for each platform."
msgstr ""
#: ../Doc/c-api/init.rst:217
msgid ""
"Return the full program name of the Python executable; this is computed "
"as a side-effect of deriving the default module search path from the "
"program name (set by :c:func:`Py_SetProgramName` above). The returned "
"string points into static storage; the caller should not modify its "
"value. The value is available to Python code as ``sys.executable``."
msgstr ""
#: ../Doc/c-api/init.rst:231
msgid ""
"Return the default module search path; this is computed from the program "
"name (set by :c:func:`Py_SetProgramName` above) and some environment "
"variables. The returned string consists of a series of directory names "
"separated by a platform dependent delimiter character. The delimiter "
"character is ``':'`` on Unix and Mac OS X, ``';'`` on Windows. The "
"returned string points into static storage; the caller should not modify "
"its value. The list :data:`sys.path` is initialized with this value on "
"interpreter startup; it can be (and usually is) modified later to change "
"the search path for loading modules."
msgstr ""
#: ../Doc/c-api/init.rst:251
msgid ""
"Set the default module search path. If this function is called before "
":c:func:`Py_Initialize`, then :c:func:`Py_GetPath` won't attempt to "
"compute a default search path but uses the one provided instead. This is"
" useful if Python is embedded by an application that has full knowledge "
"of the location of all modules. The path components should be separated "
"by the platform dependent delimiter character, which is ``':'`` on Unix "
"and Mac OS X, ``';'`` on Windows."
msgstr ""
#: ../Doc/c-api/init.rst:259
msgid ""
"This also causes :data:`sys.executable` to be set only to the raw program"
" name (see :c:func:`Py_SetProgramName`) and for :data:`sys.prefix` and "
":data:`sys.exec_prefix` to be empty. It is up to the caller to modify "
"these if required after calling :c:func:`Py_Initialize`."
msgstr ""
#: ../Doc/c-api/init.rst:267
msgid ""
"The path argument is copied internally, so the caller may free it after "
"the call completes."
msgstr ""
#: ../Doc/c-api/init.rst:273
msgid ""
"Return the version of this Python interpreter. This is a string that "
"looks something like ::"
msgstr ""
#: ../Doc/c-api/init.rst:280
msgid ""
"The first word (up to the first space character) is the current Python "
"version; the first three characters are the major and minor version "
"separated by a period. The returned string points into static storage; "
"the caller should not modify its value. The value is available to Python"
" code as :data:`sys.version`."
msgstr ""
#: ../Doc/c-api/init.rst:290
msgid ""
"Return the platform identifier for the current platform. On Unix, this "
"is formed from the \"official\" name of the operating system, converted "
"to lower case, followed by the major revision number; e.g., for Solaris "
"2.x, which is also known as SunOS 5.x, the value is ``'sunos5'``. On Mac"
" OS X, it is ``'darwin'``. On Windows, it is ``'win'``. The returned "
"string points into static storage; the caller should not modify its "
"value. The value is available to Python code as ``sys.platform``."
msgstr ""
#: ../Doc/c-api/init.rst:301
msgid ""
"Return the official copyright string for the current Python version, for "
"example"
msgstr ""
#: ../Doc/c-api/init.rst:303
msgid "``'Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam'``"
msgstr ""
#: ../Doc/c-api/init.rst:307
msgid ""
"The returned string points into static storage; the caller should not "
"modify its value. The value is available to Python code as "
"``sys.copyright``."
msgstr ""
#: ../Doc/c-api/init.rst:313
msgid ""
"Return an indication of the compiler used to build the current Python "
"version, in square brackets, for example::"
msgstr ""
#: ../Doc/c-api/init.rst:320 ../Doc/c-api/init.rst:334
msgid ""
"The returned string points into static storage; the caller should not "
"modify its value. The value is available to Python code as part of the "
"variable ``sys.version``."
msgstr ""
#: ../Doc/c-api/init.rst:327
msgid ""
"Return information about the sequence number and build date and time of "
"the current Python interpreter instance, for example ::"
msgstr ""
#: ../Doc/c-api/init.rst:346
msgid ""
"Set :data:`sys.argv` based on *argc* and *argv*. These parameters are "
"similar to those passed to the program's :c:func:`main` function with the"
" difference that the first entry should refer to the script file to be "
"executed rather than the executable hosting the Python interpreter. If "
"there isn't a script that will be run, the first entry in *argv* can be "
"an empty string. If this function fails to initialize :data:`sys.argv`, "
"a fatal condition is signalled using :c:func:`Py_FatalError`."
msgstr ""
#: ../Doc/c-api/init.rst:354
msgid ""
"If *updatepath* is zero, this is all the function does. If *updatepath* "
"is non-zero, the function also modifies :data:`sys.path` according to the"
" following algorithm:"
msgstr ""
#: ../Doc/c-api/init.rst:358
msgid ""
"If the name of an existing script is passed in ``argv[0]``, the absolute "
"path of the directory where the script is located is prepended to "
":data:`sys.path`."
msgstr ""
#: ../Doc/c-api/init.rst:361
msgid ""
"Otherwise (that is, if *argc* is ``0`` or ``argv[0]`` doesn't point to an"
" existing file name), an empty string is prepended to :data:`sys.path`, "
"which is the same as prepending the current working directory "
"(``\".\"``)."
msgstr ""
#: ../Doc/c-api/init.rst:370
msgid ""
"It is recommended that applications embedding the Python interpreter for "
"purposes other than executing a single script pass ``0`` as *updatepath*,"
" and update :data:`sys.path` themselves if desired. See `CVE-2008-5983 "
"<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_."
msgstr ""
#: ../Doc/c-api/init.rst:375
msgid ""
"On versions before 3.1.3, you can achieve the same effect by manually "
"popping the first :data:`sys.path` element after having called "
":c:func:`PySys_SetArgv`, for example using::"
msgstr ""
#: ../Doc/c-api/init.rst:389
msgid ""
"This function works like :c:func:`PySys_SetArgvEx` with *updatepath* set "
"to ``1`` unless the :program:`python` interpreter was started with the "
":option:`-I`."
msgstr ""
#: ../Doc/c-api/init.rst:396
msgid "The *updatepath* value depends on :option:`-I`."
msgstr ""
#: ../Doc/c-api/init.rst:401
msgid ""
"Set the default \"home\" directory, that is, the location of the standard"
" Python libraries. See :envvar:`PYTHONHOME` for the meaning of the "
"argument string."
msgstr ""
#: ../Doc/c-api/init.rst:405
msgid ""
"The argument should point to a zero-terminated character string in static"
" storage whose contents will not change for the duration of the program's"
" execution. No code in the Python interpreter will change the contents "
"of this storage."
msgstr ""
#: ../Doc/c-api/init.rst:416
msgid ""
"Return the default \"home\", that is, the value set by a previous call to"
" :c:func:`Py_SetPythonHome`, or the value of the :envvar:`PYTHONHOME` "
"environment variable if it is set."
msgstr ""
#: ../Doc/c-api/init.rst:424
msgid "Thread State and the Global Interpreter Lock"
msgstr ""
#: ../Doc/c-api/init.rst:431
msgid ""
"The Python interpreter is not fully thread-safe. In order to support "
"multi-threaded Python programs, there's a global lock, called the "
":term:`global interpreter lock` or :term:`GIL`, that must be held by the "
"current thread before it can safely access Python objects. Without the "
"lock, even the simplest operations could cause problems in a multi-"
"threaded program: for example, when two threads simultaneously increment "
"the reference count of the same object, the reference count could end up "
"being incremented only once instead of twice."
msgstr ""
#: ../Doc/c-api/init.rst:441
msgid ""
"Therefore, the rule exists that only the thread that has acquired the "
":term:`GIL` may operate on Python objects or call Python/C API functions."
" In order to emulate concurrency of execution, the interpreter regularly "
"tries to switch threads (see :func:`sys.setswitchinterval`). The lock is"
" also released around potentially blocking I/O operations like reading or"
" writing a file, so that other Python threads can run in the meantime."
msgstr ""
#: ../Doc/c-api/init.rst:452
msgid ""
"The Python interpreter keeps some thread-specific bookkeeping information"
" inside a data structure called :c:type:`PyThreadState`. There's also "
"one global variable pointing to the current :c:type:`PyThreadState`: it "
"can be retrieved using :c:func:`PyThreadState_Get`."
msgstr ""
#: ../Doc/c-api/init.rst:458
msgid "Releasing the GIL from extension code"
msgstr ""
#: ../Doc/c-api/init.rst:460
msgid ""
"Most extension code manipulating the :term:`GIL` has the following simple"
" structure::"
msgstr ""
#: ../Doc/c-api/init.rst:469
msgid "This is so common that a pair of macros exists to simplify it::"
msgstr ""
#: ../Doc/c-api/init.rst:479
msgid ""
"The :c:macro:`Py_BEGIN_ALLOW_THREADS` macro opens a new block and "
"declares a hidden local variable; the :c:macro:`Py_END_ALLOW_THREADS` "
"macro closes the block. These two macros are still available when Python"
" is compiled without thread support (they simply have an empty "
"expansion)."
msgstr ""
#: ../Doc/c-api/init.rst:484
msgid ""
"When thread support is enabled, the block above expands to the following "
"code::"
msgstr ""
#: ../Doc/c-api/init.rst:496
msgid ""
"Here is how these functions work: the global interpreter lock is used to "
"protect the pointer to the current thread state. When releasing the lock"
" and saving the thread state, the current thread state pointer must be "
"retrieved before the lock is released (since another thread could "
"immediately acquire the lock and store its own thread state in the global"
" variable). Conversely, when acquiring the lock and restoring the thread "
"state, the lock must be acquired before storing the thread state pointer."
msgstr ""
#: ../Doc/c-api/init.rst:505
msgid ""
"Calling system I/O functions is the most common use case for releasing "
"the GIL, but it can also be useful before calling long-running "
"computations which don't need access to Python objects, such as "
"compression or cryptographic functions operating over memory buffers. "
"For example, the standard :mod:`zlib` and :mod:`hashlib` modules release "
"the GIL when compressing or hashing data."
msgstr ""
#: ../Doc/c-api/init.rst:516
msgid "Non-Python created threads"
msgstr ""
#: ../Doc/c-api/init.rst:518
msgid ""
"When threads are created using the dedicated Python APIs (such as the "
":mod:`threading` module), a thread state is automatically associated to "
"them and the code showed above is therefore correct. However, when "
"threads are created from C (for example by a third-party library with its"
" own thread management), they don't hold the GIL, nor is there a thread "
"state structure for them."
msgstr ""
#: ../Doc/c-api/init.rst:525
msgid ""
"If you need to call Python code from these threads (often this will be "
"part of a callback API provided by the aforementioned third-party "
"library), you must first register these threads with the interpreter by "
"creating a thread state data structure, then acquiring the GIL, and "
"finally storing their thread state pointer, before you can start using "
"the Python/C API. When you are done, you should reset the thread state "
"pointer, release the GIL, and finally free the thread state data "
"structure."
msgstr ""
#: ../Doc/c-api/init.rst:533
msgid ""
"The :c:func:`PyGILState_Ensure` and :c:func:`PyGILState_Release` "
"functions do all of the above automatically. The typical idiom for "
"calling into Python from a C thread is::"
msgstr ""
#: ../Doc/c-api/init.rst:547
msgid ""
"Note that the :c:func:`PyGILState_\\*` functions assume there is only one"
" global interpreter (created automatically by :c:func:`Py_Initialize`). "
"Python supports the creation of additional interpreters (using "
":c:func:`Py_NewInterpreter`), but mixing multiple interpreters and the "
":c:func:`PyGILState_\\*` API is unsupported."
msgstr ""
#: ../Doc/c-api/init.rst:553
msgid ""
"Another important thing to note about threads is their behaviour in the "
"face of the C :c:func:`fork` call. On most systems with :c:func:`fork`, "
"after a process forks only the thread that issued the fork will exist. "
"That also means any locks held by other threads will never be released. "
"Python solves this for :func:`os.fork` by acquiring the locks it uses "
"internally before the fork, and releasing them afterwards. In addition, "
"it resets any :ref:`lock-objects` in the child. When extending or "
"embedding Python, there is no way to inform Python of additional (non-"
"Python) locks that need to be acquired before or reset after a fork. OS "
"facilities such as :c:func:`pthread_atfork` would need to be used to "
"accomplish the same thing. Additionally, when extending or embedding "
"Python, calling :c:func:`fork` directly rather than through "
":func:`os.fork` (and returning to or calling into Python) may result in a"
" deadlock by one of Python's internal locks being held by a thread that "
"is defunct after the fork. :c:func:`PyOS_AfterFork` tries to reset the "
"necessary locks, but is not always able to."
msgstr ""
#: ../Doc/c-api/init.rst:572
msgid "High-level API"
msgstr ""
#: ../Doc/c-api/init.rst:574
msgid ""
"These are the most commonly used types and functions when writing C "
"extension code, or when embedding the Python interpreter:"
msgstr ""
#: ../Doc/c-api/init.rst:579
msgid ""
"This data structure represents the state shared by a number of "
"cooperating threads. Threads belonging to the same interpreter share "
"their module administration and a few other internal items. There are no "
"public members in this structure."
msgstr ""
#: ../Doc/c-api/init.rst:584
msgid ""
"Threads belonging to different interpreters initially share nothing, "
"except process state like available memory, open file descriptors and "
"such. The global interpreter lock is also shared by all threads, "
"regardless of to which interpreter they belong."
msgstr ""
#: ../Doc/c-api/init.rst:592
msgid ""
"This data structure represents the state of a single thread. The only "
"public data member is :c:type:`PyInterpreterState \\*`:attr:`interp`, "
"which points to this thread's interpreter state."
msgstr ""
#: ../Doc/c-api/init.rst:605
msgid ""
"Initialize and acquire the global interpreter lock. It should be called "
"in the main thread before creating a second thread or engaging in any "
"other thread operations such as ``PyEval_ReleaseThread(tstate)``. It is "
"not needed before calling :c:func:`PyEval_SaveThread` or "
":c:func:`PyEval_RestoreThread`."
msgstr ""
#: ../Doc/c-api/init.rst:610
msgid "This is a no-op when called for a second time."
msgstr ""
#: ../Doc/c-api/init.rst:612
msgid "This function cannot be called before :c:func:`Py_Initialize()` anymore."
msgstr ""
#: ../Doc/c-api/init.rst:619
msgid ""
"When only the main thread exists, no GIL operations are needed. This is a"
" common situation (most Python programs do not use threads), and the lock"
" operations slow the interpreter down a bit. Therefore, the lock is not "
"created initially. This situation is equivalent to having acquired the "
"lock: when there is only a single thread, all object accesses are safe. "
"Therefore, when this function initializes the global interpreter lock, it"
" also acquires it. Before the Python :mod:`_thread` module creates a new"
" thread, knowing that either it has the lock or the lock hasn't been "
"created yet, it calls :c:func:`PyEval_InitThreads`. When this call "
"returns, it is guaranteed that the lock has been created and that the "
"calling thread has acquired it."
msgstr ""
#: ../Doc/c-api/init.rst:630
msgid ""
"It is **not** safe to call this function when it is unknown which thread "
"(if any) currently has the global interpreter lock."
msgstr ""
#: ../Doc/c-api/init.rst:633
msgid ""
"This function is not available when thread support is disabled at compile"
" time."
msgstr ""
#: ../Doc/c-api/init.rst:638
msgid ""
"Returns a non-zero value if :c:func:`PyEval_InitThreads` has been called."
" This function can be called without holding the GIL, and therefore can "
"be used to avoid calls to the locking API when running single-threaded. "
"This function is not available when thread support is disabled at compile"
" time."
msgstr ""
#: ../Doc/c-api/init.rst:646
msgid ""
"Release the global interpreter lock (if it has been created and thread "
"support is enabled) and reset the thread state to *NULL*, returning the "
"previous thread state (which is not *NULL*). If the lock has been "
"created, the current thread must have acquired it. (This function is "
"available even when thread support is disabled at compile time.)"
msgstr ""
#: ../Doc/c-api/init.rst:655
msgid ""
"Acquire the global interpreter lock (if it has been created and thread "
"support is enabled) and set the thread state to *tstate*, which must not "
"be *NULL*. If the lock has been created, the current thread must not "
"have acquired it, otherwise deadlock ensues. (This function is available"
" even when thread support is disabled at compile time.)"
msgstr ""
#: ../Doc/c-api/init.rst:664
msgid ""
"Return the current thread state. The global interpreter lock must be "
"held. When the current thread state is *NULL*, this issues a fatal error "
"(so that the caller needn't check for *NULL*)."
msgstr ""
#: ../Doc/c-api/init.rst:671
msgid ""
"Swap the current thread state with the thread state given by the argument"
" *tstate*, which may be *NULL*. The global interpreter lock must be held"
" and is not released."
msgstr ""
#: ../Doc/c-api/init.rst:678
msgid ""
"This function is called from :c:func:`PyOS_AfterFork` to ensure that "
"newly created child processes don't hold locks referring to threads which"
" are not running in the child process."
msgstr ""
#: ../Doc/c-api/init.rst:683
msgid ""
"The following functions use thread-local storage, and are not compatible "
"with sub-interpreters:"
msgstr ""
#: ../Doc/c-api/init.rst:688
msgid ""
"Ensure that the current thread is ready to call the Python C API "
"regardless of the current state of Python, or of the global interpreter "
"lock. This may be called as many times as desired by a thread as long as "
"each call is matched with a call to :c:func:`PyGILState_Release`. In "
"general, other thread-related APIs may be used between "
":c:func:`PyGILState_Ensure` and :c:func:`PyGILState_Release` calls as "
"long as the thread state is restored to its previous state before the "
"Release(). For example, normal usage of the "
":c:macro:`Py_BEGIN_ALLOW_THREADS` and :c:macro:`Py_END_ALLOW_THREADS` "
"macros is acceptable."
msgstr ""
#: ../Doc/c-api/init.rst:698
msgid ""
"The return value is an opaque \"handle\" to the thread state when "
":c:func:`PyGILState_Ensure` was called, and must be passed to "
":c:func:`PyGILState_Release` to ensure Python is left in the same state. "
"Even though recursive calls are allowed, these handles *cannot* be shared"
" - each unique call to :c:func:`PyGILState_Ensure` must save the handle "
"for its call to :c:func:`PyGILState_Release`."
msgstr ""
#: ../Doc/c-api/init.rst:705
msgid ""
"When the function returns, the current thread will hold the GIL and be "
"able to call arbitrary Python code. Failure is a fatal error."
msgstr ""
#: ../Doc/c-api/init.rst:711
msgid ""
"Release any resources previously acquired. After this call, Python's "
"state will be the same as it was prior to the corresponding "
":c:func:`PyGILState_Ensure` call (but generally this state will be "
"unknown to the caller, hence the use of the GILState API)."
msgstr ""
#: ../Doc/c-api/init.rst:716
msgid ""
"Every call to :c:func:`PyGILState_Ensure` must be matched by a call to "
":c:func:`PyGILState_Release` on the same thread."
msgstr ""
#: ../Doc/c-api/init.rst:722
msgid ""
"Get the current thread state for this thread. May return ``NULL`` if no "
"GILState API has been used on the current thread. Note that the main "
"thread always has such a thread-state, even if no auto-thread-state call "
"has been made on the main thread. This is mainly a helper/diagnostic "
"function."
msgstr ""
#: ../Doc/c-api/init.rst:730
msgid ""
"Return ``1`` if the current thread is holding the GIL and ``0`` "
"otherwise. This function can be called from any thread at any time. Only "
"if it has had its Python thread state initialized and currently is "
"holding the GIL will it return ``1``. This is mainly a helper/diagnostic "
"function. It can be useful for example in callback contexts or memory "
"allocation functions when knowing that the GIL is locked can allow the "
"caller to perform sensitive actions or otherwise behave differently."
msgstr ""
#: ../Doc/c-api/init.rst:742
msgid ""
"The following macros are normally used without a trailing semicolon; look"
" for example usage in the Python source distribution."
msgstr ""
#: ../Doc/c-api/init.rst:748
msgid ""
"This macro expands to ``{ PyThreadState *_save; _save = "
"PyEval_SaveThread();``. Note that it contains an opening brace; it must "
"be matched with a following :c:macro:`Py_END_ALLOW_THREADS` macro. See "
"above for further discussion of this macro. It is a no-op when thread "
"support is disabled at compile time."
msgstr ""
#: ../Doc/c-api/init.rst:756
msgid ""
"This macro expands to ``PyEval_RestoreThread(_save); }``. Note that it "
"contains a closing brace; it must be matched with an earlier "
":c:macro:`Py_BEGIN_ALLOW_THREADS` macro. See above for further "
"discussion of this macro. It is a no-op when thread support is disabled "
"at compile time."
msgstr ""
#: ../Doc/c-api/init.rst:764
msgid ""
"This macro expands to ``PyEval_RestoreThread(_save);``: it is equivalent "
"to :c:macro:`Py_END_ALLOW_THREADS` without the closing brace. It is a "
"no-op when thread support is disabled at compile time."
msgstr ""
#: ../Doc/c-api/init.rst:771
msgid ""
"This macro expands to ``_save = PyEval_SaveThread();``: it is equivalent "
"to :c:macro:`Py_BEGIN_ALLOW_THREADS` without the opening brace and "
"variable declaration. It is a no-op when thread support is disabled at "
"compile time."
msgstr ""
#: ../Doc/c-api/init.rst:777
msgid "Low-level API"
msgstr ""
#: ../Doc/c-api/init.rst:779
msgid ""
"All of the following functions are only available when thread support is "
"enabled at compile time, and must be called only when the global "
"interpreter lock has been created."
msgstr ""
#: ../Doc/c-api/init.rst:786
msgid ""
"Create a new interpreter state object. The global interpreter lock need "
"not be held, but may be held if it is necessary to serialize calls to "
"this function."
msgstr ""
#: ../Doc/c-api/init.rst:793
msgid ""
"Reset all information in an interpreter state object. The global "
"interpreter lock must be held."
msgstr ""
#: ../Doc/c-api/init.rst:799
msgid ""
"Destroy an interpreter state object. The global interpreter lock need "
"not be held. The interpreter state must have been reset with a previous "
"call to :c:func:`PyInterpreterState_Clear`."
msgstr ""
#: ../Doc/c-api/init.rst:806
msgid ""
"Create a new thread state object belonging to the given interpreter "
"object. The global interpreter lock need not be held, but may be held if "
"it is necessary to serialize calls to this function."
msgstr ""
#: ../Doc/c-api/init.rst:813
msgid ""
"Reset all information in a thread state object. The global interpreter "
"lock must be held."
msgstr ""
#: ../Doc/c-api/init.rst:819
msgid ""
"Destroy a thread state object. The global interpreter lock need not be "
"held. The thread state must have been reset with a previous call to "
":c:func:`PyThreadState_Clear`."
msgstr ""
#: ../Doc/c-api/init.rst:826
msgid ""
"Return a dictionary in which extensions can store thread-specific state "
"information. Each extension should use a unique key to use to store "
"state in the dictionary. It is okay to call this function when no "
"current thread state is available. If this function returns *NULL*, no "
"exception has been raised and the caller should assume no current thread "
"state is available."
msgstr ""
#: ../Doc/c-api/init.rst:835
msgid ""
"Asynchronously raise an exception in a thread. The *id* argument is the "
"thread id of the target thread; *exc* is the exception object to be "
"raised. This function does not steal any references to *exc*. To prevent "
"naive misuse, you must write your own C extension to call this. Must be "
"called with the GIL held. Returns the number of thread states modified; "
"this is normally one, but will be zero if the thread id isn't found. If "
"*exc* is :const:`NULL`, the pending exception (if any) for the thread is "
"cleared. This raises no exceptions."
msgstr ""
#: ../Doc/c-api/init.rst:846
msgid ""
"Acquire the global interpreter lock and set the current thread state to "
"*tstate*, which should not be *NULL*. The lock must have been created "
"earlier. If this thread already has the lock, deadlock ensues."
msgstr ""
#: ../Doc/c-api/init.rst:850
msgid ""
":c:func:`PyEval_RestoreThread` is a higher-level function which is always"
" available (even when thread support isn't enabled or when threads have "
"not been initialized)."
msgstr ""
#: ../Doc/c-api/init.rst:857
msgid ""
"Reset the current thread state to *NULL* and release the global "
"interpreter lock. The lock must have been created earlier and must be "
"held by the current thread. The *tstate* argument, which must not be "
"*NULL*, is only used to check that it represents the current thread state"
" --- if it isn't, a fatal error is reported."
msgstr ""
#: ../Doc/c-api/init.rst:863
msgid ""
":c:func:`PyEval_SaveThread` is a higher-level function which is always "
"available (even when thread support isn't enabled or when threads have "
"not been initialized)."
msgstr ""
#: ../Doc/c-api/init.rst:870
msgid ""
"Acquire the global interpreter lock. The lock must have been created "
"earlier. If this thread already has the lock, a deadlock ensues."
msgstr ""
#: ../Doc/c-api/init.rst:873
msgid ""
"This function does not update the current thread state. Please use "
":c:func:`PyEval_RestoreThread` or :c:func:`PyEval_AcquireThread` instead."
msgstr ""
#: ../Doc/c-api/init.rst:881
msgid ""
"Release the global interpreter lock. The lock must have been created "
"earlier."
msgstr ""
#: ../Doc/c-api/init.rst:883
msgid ""
"This function does not update the current thread state. Please use "
":c:func:`PyEval_SaveThread` or :c:func:`PyEval_ReleaseThread` instead."
msgstr ""
#: ../Doc/c-api/init.rst:892
msgid "Sub-interpreter support"
msgstr ""
#: ../Doc/c-api/init.rst:894
msgid ""
"While in most uses, you will only embed a single Python interpreter, "
"there are cases where you need to create several independent interpreters"
" in the same process and perhaps even in the same thread. Sub-"
"interpreters allow you to do that. You can switch between sub-"
"interpreters using the :c:func:`PyThreadState_Swap` function. You can "
"create and destroy them using the following functions:"
msgstr ""
#: ../Doc/c-api/init.rst:912
msgid ""
"Create a new sub-interpreter. This is an (almost) totally separate "
"environment for the execution of Python code. In particular, the new "
"interpreter has separate, independent versions of all imported modules, "
"including the fundamental modules :mod:`builtins`, :mod:`__main__` and "
":mod:`sys`. The table of loaded modules (``sys.modules``) and the module"
" search path (``sys.path``) are also separate. The new environment has "
"no ``sys.argv`` variable. It has new standard I/O stream file objects "
"``sys.stdin``, ``sys.stdout`` and ``sys.stderr`` (however these refer to "
"the same underlying file descriptors)."
msgstr ""
#: ../Doc/c-api/init.rst:922
msgid ""
"The return value points to the first thread state created in the new sub-"
"interpreter. This thread state is made in the current thread state. Note"
" that no actual thread is created; see the discussion of thread states "
"below. If creation of the new interpreter is unsuccessful, *NULL* is "
"returned; no exception is set since the exception state is stored in the "
"current thread state and there may not be a current thread state. (Like "
"all other Python/C API functions, the global interpreter lock must be "
"held before calling this function and is still held when it returns; "
"however, unlike most other Python/C API functions, there needn't be a "
"current thread state on entry.)"
msgstr ""
#: ../Doc/c-api/init.rst:937
msgid ""
"Extension modules are shared between (sub-)interpreters as follows: the "
"first time a particular extension is imported, it is initialized "
"normally, and a (shallow) copy of its module's dictionary is squirreled "
"away. When the same extension is imported by another (sub-)interpreter, "
"a new module is initialized and filled with the contents of this copy; "
"the extension's ``init`` function is not called. Note that this is "
"different from what happens when an extension is imported after the "
"interpreter has been completely re-initialized by calling "
":c:func:`Py_FinalizeEx` and :c:func:`Py_Initialize`; in that case, the "
"extension's ``initmodule`` function *is* called again."
msgstr ""
#: ../Doc/c-api/init.rst:954
msgid ""
"Destroy the (sub-)interpreter represented by the given thread state. The "
"given thread state must be the current thread state. See the discussion "
"of thread states below. When the call returns, the current thread state "
"is *NULL*. All thread states associated with this interpreter are "
"destroyed. (The global interpreter lock must be held before calling this"
" function and is still held when it returns.) :c:func:`Py_FinalizeEx` "
"will destroy all sub-interpreters that haven't been explicitly destroyed "
"at that point."