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#
SOME DESCRIPTIVE TITLE.
#
Copyright (C) 2001-2022, Python Software Foundation
#
This file is distributed under the same license as the Python package.
#
#
Translators:
#
Ching-Lung Chuang, 2015
msgid ""
msgstr ""
"
Project-Id-Version
:
Python 3.12\n
"
"
Report-Msgid-Bugs-To
:
\n
"
"
POT-Creation-Date
:
2023-08-23 00:03+0000\n
"
"
PO-Revision-Date
:
2018-05-23 14:05+0000\n
"
"
Last-Translator
:
Adrian Liaw <adrianliaw2000@gmail.com>\n
"
"
Language-Team
:
Chinese - TAIWAN (https://github.com/python/python-docs-zh-
"
"
tw)\n
"
"
Language
:
zh_TW\n
"
"
MIME-Version
:
1.0\n
"
"
Content-Type
:
text/plain; charset=UTF-8\n
"
"
Content-Transfer-Encoding
:
8bit\n
"
"
Plural-Forms
:
nplurals=1; plural=0;\n
"
#:
../../c-api/exceptions.rst:8
msgid
"Exception Handling"
msgstr
"例外處理"
#:
../../c-api/exceptions.rst:10
msgid
""
"The functions described in this chapter will let you handle and raise Python "
"exceptions. It is important to understand some of the basics of Python "
"exception handling. It works somewhat like the POSIX :c:data:`errno` "
"variable: there is a global indicator (per thread) of the last error that "
"occurred. Most C API functions don't clear this on success, but will set it "
"to indicate the cause of the error on failure. Most C API functions also "
"return an error indicator, usually ``NULL`` if they are supposed to return a "
"pointer, or ``-1`` if they return an integer (exception: the ``PyArg_*`` "
"functions return ``1`` for success and ``0`` for failure)."
msgstr
""
#:
../../c-api/exceptions.rst:20
msgid
""
"Concretely, the error indicator consists of three object pointers: the "
"exception's type, the exception's value, and the traceback object. Any of "
"those pointers can be ``NULL`` if non-set (although some combinations are "
"forbidden, for example you can't have a non-``NULL`` traceback if the "
"exception type is ``NULL``)."
msgstr
""
#:
../../c-api/exceptions.rst:26
msgid
""
"When a function must fail because some function it called failed, it "
"generally doesn't set the error indicator; the function it called already "
"set it. It is responsible for either handling the error and clearing the "
"exception or returning after cleaning up any resources it holds (such as "
"object references or memory allocations); it should *not* continue normally "
"if it is not prepared to handle the error. If returning due to an error, it "
"is important to indicate to the caller that an error has been set. If the "
"error is not handled or carefully propagated, additional calls into the "
"Python/C API may not behave as intended and may fail in mysterious ways."
msgstr
""
#:
../../c-api/exceptions.rst:37
msgid
""
"The error indicator is **not** the result of :func:`sys.exc_info()`. The "
"former corresponds to an exception that is not yet caught (and is therefore "
"still propagating), while the latter returns an exception after it is caught "
"(and has therefore stopped propagating)."
msgstr
""
#:
../../c-api/exceptions.rst:44
msgid
"Printing and clearing"
msgstr
""
#:
../../c-api/exceptions.rst:49
msgid
""
"Clear the error indicator. If the error indicator is not set, there is no "
"effect."
msgstr
""
#:
../../c-api/exceptions.rst:55
msgid
""
"Print a standard traceback to ``sys.stderr`` and clear the error indicator. "
"**Unless** the error is a ``SystemExit``, in that case no traceback is "
"printed and the Python process will exit with the error code specified by "
"the ``SystemExit`` instance."
msgstr
""
#:
../../c-api/exceptions.rst:60
msgid
""
"Call this function **only** when the error indicator is set. Otherwise it "
"will cause a fatal error!"
msgstr
""
#:
../../c-api/exceptions.rst:63
msgid
""
"If *set_sys_last_vars* is nonzero, the variable :data:`sys.last_exc` is set "
"to the printed exception. For backwards compatibility, the deprecated "
"variables :data:`sys.last_type`, :data:`sys.last_value` and :data:`sys."
"last_traceback` are also set to the type, value and traceback of this "
"exception, respectively."
msgstr
""
#:
../../c-api/exceptions.rst:69
msgid
"The setting of :data:`sys.last_exc` was added."
msgstr
""
#:
../../c-api/exceptions.rst:75
msgid
"Alias for ``PyErr_PrintEx(1)``."
msgstr
"``PyErr_PrintEx(1)`` 的別名。"
#:
../../c-api/exceptions.rst:80
msgid
""
"Call :func:`sys.unraisablehook` using the current exception and *obj* "
"argument."
msgstr
""
#:
../../c-api/exceptions.rst:83
msgid
""
"This utility function prints a warning message to ``sys.stderr`` when an "
"exception has been set but it is impossible for the interpreter to actually "
"raise the exception. It is used, for example, when an exception occurs in "
"an :meth:`~object.__del__` method."
msgstr
""
#:
../../c-api/exceptions.rst:88
msgid
""
"The function is called with a single argument *obj* that identifies the "
"context in which the unraisable exception occurred. If possible, the repr of "
"*obj* will be printed in the warning message."
msgstr
""
#:
../../c-api/exceptions.rst:92
msgid
"An exception must be set when calling this function."
msgstr
""
#:
../../c-api/exceptions.rst:96
msgid
""
"Print the standard traceback display of ``exc`` to ``sys.stderr``, including "
"chained exceptions and notes."
msgstr
""
#:
../../c-api/exceptions.rst:102
msgid
"Raising exceptions"
msgstr
""
#:
../../c-api/exceptions.rst:104
msgid
""
"These functions help you set the current thread's error indicator. For "
"convenience, some of these functions will always return a ``NULL`` pointer "
"for use in a ``return`` statement."
msgstr
""
#:
../../c-api/exceptions.rst:111
msgid
""
"This is the most common way to set the error indicator. The first argument "
"specifies the exception type; it is normally one of the standard exceptions, "
"e.g. :c:data:`PyExc_RuntimeError`. You need not create a new :term:`strong "
"reference` to it (e.g. with :c:func:`Py_INCREF`). The second argument is an "
"error message; it is decoded from ``'utf-8'``."
msgstr
""
#:
../../c-api/exceptions.rst:120
msgid
""
"This function is similar to :c:func:`PyErr_SetString` but lets you specify "
"an arbitrary Python object for the
\"
value
\"
of the exception."
msgstr
""
#:
../../c-api/exceptions.rst:126
msgid
""
"This function sets the error indicator and returns ``NULL``. *exception* "
"should be a Python exception class. The *format* and subsequent parameters "
"help format the error message; they have the same meaning and values as in :"
"c:func:`PyUnicode_FromFormat`. *format* is an ASCII-encoded string."
msgstr
""
#:
../../c-api/exceptions.rst:135
msgid
""
"Same as :c:func:`PyErr_Format`, but taking a :c:type:`va_list` argument "
"rather than a variable number of arguments."
msgstr
""
#:
../../c-api/exceptions.rst:143
msgid
"This is a shorthand for ``PyErr_SetObject(type, Py_None)``."
msgstr
""
#:
../../c-api/exceptions.rst:148
msgid
""
"This is a shorthand for ``PyErr_SetString(PyExc_TypeError, message)``, where "
"*message* indicates that a built-in operation was invoked with an illegal "
"argument. It is mostly for internal use."
msgstr
""
#:
../../c-api/exceptions.rst:155
msgid
""
"This is a shorthand for ``PyErr_SetNone(PyExc_MemoryError)``; it returns "
"``NULL`` so an object allocation function can write ``return "
"PyErr_NoMemory();`` when it runs out of memory."
msgstr
""
#:
../../c-api/exceptions.rst:164
msgid
""
"This is a convenience function to raise an exception when a C library "
"function has returned an error and set the C variable :c:data:`errno`. It "
"constructs a tuple object whose first item is the integer :c:data:`errno` "
"value and whose second item is the corresponding error message (gotten from :"
"c:func:`!strerror`), and then calls ``PyErr_SetObject(type, object)``. On "
"Unix, when the :c:data:`errno` value is :c:macro:`!EINTR`, indicating an "
"interrupted system call, this calls :c:func:`PyErr_CheckSignals`, and if "
"that set the error indicator, leaves it set to that. The function always "
"returns ``NULL``, so a wrapper function around a system call can write "
"``return PyErr_SetFromErrno(type);`` when the system call returns an error."
msgstr
""
#:
../../c-api/exceptions.rst:178
msgid
""
"Similar to :c:func:`PyErr_SetFromErrno`, with the additional behavior that "
"if *filenameObject* is not ``NULL``, it is passed to the constructor of "
"*type* as a third parameter. In the case of :exc:`OSError` exception, this "
"is used to define the :attr:`!filename` attribute of the exception instance."
msgstr
""
#:
../../c-api/exceptions.rst:187
msgid
""
"Similar to :c:func:`PyErr_SetFromErrnoWithFilenameObject`, but takes a "
"second filename object, for raising errors when a function that takes two "
"filenames fails."
msgstr
""
#:
../../c-api/exceptions.rst:196
msgid
""
"Similar to :c:func:`PyErr_SetFromErrnoWithFilenameObject`, but the filename "
"is given as a C string. *filename* is decoded from the :term:`filesystem "
"encoding and error handler`."
msgstr
""
#:
../../c-api/exceptions.rst:203
msgid
""
"This is a convenience function to raise :exc:`WindowsError`. If called with "
"*ierr* of ``0``, the error code returned by a call to :c:func:`!"
"GetLastError` is used instead. It calls the Win32 function :c:func:`!"
"FormatMessage` to retrieve the Windows description of error code given by "
"*ierr* or :c:func:`!GetLastError`, then it constructs a tuple object whose "
"first item is the *ierr* value and whose second item is the corresponding "
"error message (gotten from :c:func:`!FormatMessage`), and then calls "
"``PyErr_SetObject(PyExc_WindowsError, object)``. This function always "
"returns ``NULL``."
msgstr
""
#:
../../c-api/exceptions.rst:212
../../c-api/exceptions.rst:220
#:
../../c-api/exceptions.rst:231
../../c-api/exceptions.rst:241
#:
../../c-api/exceptions.rst:249
../../c-api/exceptions.rst:259
msgid
":ref:`Availability <availability>`: Windows."
msgstr
":ref:`適用 <availability>`：Windows。"
#:
../../c-api/exceptions.rst:217
msgid
""
"Similar to :c:func:`PyErr_SetFromWindowsErr`, with an additional parameter "
"specifying the exception type to be raised."
msgstr
""
#:
../../c-api/exceptions.rst:225
msgid
""
"Similar to :c:func:`PyErr_SetFromWindowsErr`, with the additional behavior "
"that if *filename* is not ``NULL``, it is decoded from the filesystem "
"encoding (:func:`os.fsdecode`) and passed to the constructor of :exc:"
"`OSError` as a third parameter to be used to define the :attr:`!filename` "
"attribute of the exception instance."
msgstr
""
#:
../../c-api/exceptions.rst:236
msgid
""
"Similar to :c:func:`PyErr_SetExcFromWindowsErr`, with the additional "
"behavior that if *filename* is not ``NULL``, it is passed to the constructor "
"of :exc:`OSError` as a third parameter to be used to define the :attr:`!"
"filename` attribute of the exception instance."
msgstr
""
#:
../../c-api/exceptions.rst:246
msgid
""
"Similar to :c:func:`PyErr_SetExcFromWindowsErrWithFilenameObject`, but "
"accepts a second filename object."
msgstr
""
#:
../../c-api/exceptions.rst:256
msgid
""
"Similar to :c:func:`PyErr_SetFromWindowsErrWithFilename`, with an additional "
"parameter specifying the exception type to be raised."
msgstr
""
#:
../../c-api/exceptions.rst:264
msgid
""
"This is a convenience function to raise :exc:`ImportError`. *msg* will be "
"set as the exception's message string. *name* and *path*, both of which can "
"be ``NULL``, will be set as the :exc:`ImportError`'s respective ``name`` and "
"``path`` attributes."
msgstr
""
#:
../../c-api/exceptions.rst:274
msgid
""
"Much like :c:func:`PyErr_SetImportError` but this function allows for "
"specifying a subclass of :exc:`ImportError` to raise."
msgstr
""
#:
../../c-api/exceptions.rst:282
msgid
""
"Set file, line, and offset information for the current exception. If the "
"current exception is not a :exc:`SyntaxError`, then it sets additional "
"attributes, which make the exception printing subsystem think the exception "
"is a :exc:`SyntaxError`."
msgstr
""
#:
../../c-api/exceptions.rst:292
msgid
""
"Like :c:func:`PyErr_SyntaxLocationObject`, but *filename* is a byte string "
"decoded from the :term:`filesystem encoding and error handler`."
msgstr
""
#:
../../c-api/exceptions.rst:300
msgid
""
"Like :c:func:`PyErr_SyntaxLocationEx`, but the *col_offset* parameter is "
"omitted."
msgstr
""
#:
../../c-api/exceptions.rst:306
msgid
""
"This is a shorthand for ``PyErr_SetString(PyExc_SystemError, message)``, "
"where *message* indicates that an internal operation (e.g. a Python/C API "
"function) was invoked with an illegal argument. It is mostly for internal "
"use."
msgstr
""
#:
../../c-api/exceptions.rst:313
msgid
"Issuing warnings"
msgstr
""
#:
../../c-api/exceptions.rst:315
msgid
""
"Use these functions to issue warnings from C code. They mirror similar "
"functions exported by the Python :mod:`warnings` module. They normally "
"print a warning message to *sys.stderr*; however, it is also possible that "
"the user has specified that warnings are to be turned into errors, and in "
"that case they will raise an exception. It is also possible that the "
"functions raise an exception because of a problem with the warning "
"machinery. The return value is ``0`` if no exception is raised, or ``-1`` if "
"an exception is raised. (It is not possible to determine whether a warning "
"message is actually printed, nor what the reason is for the exception; this "
"is intentional.) If an exception is raised, the caller should do its normal "
"exception handling (for example, :c:func:`Py_DECREF` owned references and "
"return an error value)."
msgstr
""
#:
../../c-api/exceptions.rst:330
msgid
""
"Issue a warning message. The *category* argument is a warning category (see "
"below) or ``NULL``; the *message* argument is a UTF-8 encoded string. "
"*stack_level* is a positive number giving a number of stack frames; the "
"warning will be issued from the currently executing line of code in that "
"stack frame. A *stack_level* of 1 is the function calling :c:func:"
"`PyErr_WarnEx`, 2 is the function above that, and so forth."
msgstr
""
#:
../../c-api/exceptions.rst:337
msgid
""
"Warning categories must be subclasses of :c:data:`PyExc_Warning`; :c:data:"
"`PyExc_Warning` is a subclass of :c:data:`PyExc_Exception`; the default "
"warning category is :c:data:`PyExc_RuntimeWarning`. The standard Python "
"warning categories are available as global variables whose names are "
"enumerated at :ref:`standardwarningcategories`."
msgstr
""
#:
../../c-api/exceptions.rst:343
msgid
""
"For information about warning control, see the documentation for the :mod:"
"`warnings` module and the :option:`-W` option in the command line "
"documentation. There is no C API for warning control."
msgstr
""
#:
../../c-api/exceptions.rst:350
msgid
""
"Issue a warning message with explicit control over all warning attributes. "
"This is a straightforward wrapper around the Python function :func:`warnings."
"warn_explicit`; see there for more information. The *module* and *registry* "
"arguments may be set to ``NULL`` to get the default effect described there."
msgstr
""
#:
../../c-api/exceptions.rst:361
msgid
""
"Similar to :c:func:`PyErr_WarnExplicitObject` except that *message* and "
"*module* are UTF-8 encoded strings, and *filename* is decoded from the :term:"
"`filesystem encoding and error handler`."
msgstr
""
#:
../../c-api/exceptions.rst:368
msgid
""
"Function similar to :c:func:`PyErr_WarnEx`, but use :c:func:"
"`PyUnicode_FromFormat` to format the warning message. *format* is an ASCII-"
"encoded string."
msgstr
""
#:
../../c-api/exceptions.rst:377
msgid
""
"Function similar to :c:func:`PyErr_WarnFormat`, but *category* is :exc:"
"`ResourceWarning` and it passes *source* to :func:`warnings.WarningMessage`."
msgstr
""
#:
../../c-api/exceptions.rst:384
msgid
"Querying the error indicator"
msgstr
""
#:
../../c-api/exceptions.rst:388
msgid
""
"Test whether the error indicator is set. If set, return the exception "
"*type* (the first argument to the last call to one of the ``PyErr_Set*`` "
"functions or to :c:func:`PyErr_Restore`). If not set, return ``NULL``. You "
"do not own a reference to the return value, so you do not need to :c:func:"
"`Py_DECREF` it."
msgstr
""
#:
../../c-api/exceptions.rst:394
msgid
"The caller must hold the GIL."
msgstr
""
#:
../../c-api/exceptions.rst:398
msgid
""
"Do not compare the return value to a specific exception; use :c:func:"
"`PyErr_ExceptionMatches` instead, shown below. (The comparison could easily "
"fail since the exception may be an instance instead of a class, in the case "
"of a class exception, or it may be a subclass of the expected exception.)"
msgstr
""
#:
../../c-api/exceptions.rst:406
msgid
""
"Equivalent to ``PyErr_GivenExceptionMatches(PyErr_Occurred(), exc)``. This "
"should only be called when an exception is actually set; a memory access "
"violation will occur if no exception has been raised."
msgstr
""
#:
../../c-api/exceptions.rst:413
msgid
""
"Return true if the *given* exception matches the exception type in *exc*. "
"If *exc* is a class object, this also returns true when *given* is an "
"instance of a subclass. If *exc* is a tuple, all exception types in the "
"tuple (and recursively in subtuples) are searched for a match."
msgstr
""
#:
../../c-api/exceptions.rst:421
msgid
""
"Return the exception currently being raised, clearing the error indicator at "
"the same time."
msgstr
""
#:
../../c-api/exceptions.rst:424
msgid
""
"This function is used by code that needs to catch exceptions, or code that "
"needs to save and restore the error indicator temporarily."
msgstr
""
#:
../../c-api/exceptions.rst:427
../../c-api/exceptions.rst:471
msgid
"For example::"
msgstr
""
#:
../../c-api/exceptions.rst:437
msgid
""
":c:func:`PyErr_GetHandledException`, to save the exception currently being "
"handled."
msgstr
""
#:
../../c-api/exceptions.rst:445
msgid
""
"Set *exc* as the exception currently being raised, clearing the existing "
"exception if one is set."
msgstr
""
#:
../../c-api/exceptions.rst:450
msgid
"This call steals a reference to *exc*, which must be a valid exception."
msgstr
""
#:
../../c-api/exceptions.rst:459
msgid
"Use :c:func:`PyErr_GetRaisedException` instead."
msgstr
""
#:
../../c-api/exceptions.rst:461
msgid
""
"Retrieve the error indicator into three variables whose addresses are "
"passed. If the error indicator is not set, set all three variables to "
"``NULL``. If it is set, it will be cleared and you own a reference to each "
"object retrieved. The value and traceback object may be ``NULL`` even when "
"the type object is not."
msgstr
""
#:
../../c-api/exceptions.rst:468
msgid
""
"This function is normally only used by legacy code that needs to catch "
"exceptions or save and restore the error indicator temporarily."
msgstr
""
#:
../../c-api/exceptions.rst:487
msgid
"Use :c:func:`PyErr_SetRaisedException` instead."
msgstr
""
#:
../../c-api/exceptions.rst:489
msgid
""
"Set the error indicator from the three objects, *type*, *value*, and "
"*traceback*, clearing the existing exception if one is set. If the objects "
"are ``NULL``, the error indicator is cleared. Do not pass a ``NULL`` type "
"and non-``NULL`` value or traceback. The exception type should be a class. "
"Do not pass an invalid exception type or value. (Violating these rules will "
"cause subtle problems later.) This call takes away a reference to each "
"object: you must own a reference to each object before the call and after "
"the call you no longer own these references. (If you don't understand this, "
"don't use this function. I warned you.)"
msgstr
""
#:
../../c-api/exceptions.rst:503
msgid
""
"This function is normally only used by legacy code that needs to save and "
"restore the error indicator temporarily. Use :c:func:`PyErr_Fetch` to save "
"the current error indicator."
msgstr
""
#:
../../c-api/exceptions.rst:512
msgid
""
"Use :c:func:`PyErr_GetRaisedException` instead, to avoid any possible de-"
"normalization."
msgstr
""
#:
../../c-api/exceptions.rst:515
msgid
""
"Under certain circumstances, the values returned by :c:func:`PyErr_Fetch` "
"below can be
\"
unnormalized
\"
, meaning that ``*exc`` is a class object but "
"``*val`` is not an instance of the same class. This function can be used "
"to instantiate the class in that case. If the values are already "
"normalized, nothing happens. The delayed normalization is implemented to "
"improve performance."
msgstr
""
#:
../../c-api/exceptions.rst:523
msgid
""
"This function *does not* implicitly set the ``__traceback__`` attribute on "
"the exception value. If setting the traceback appropriately is desired, the "
"following additional snippet is needed::"
msgstr
""
#:
../../c-api/exceptions.rst:534
msgid
""
"Retrieve the active exception instance, as would be returned by :func:`sys."
"exception`. This refers to an exception that was *already caught*, not to an "
"exception that was freshly raised. Returns a new reference to the exception "
"or ``NULL``. Does not modify the interpreter's exception state."
msgstr
""
#:
../../c-api/exceptions.rst:541
msgid
""
"This function is not normally used by code that wants to handle exceptions. "
"Rather, it can be used when code needs to save and restore the exception "
"state temporarily. Use :c:func:`PyErr_SetHandledException` to restore or "
"clear the exception state."
msgstr
""
#:
../../c-api/exceptions.rst:550
msgid
""
"Set the active exception, as known from ``sys.exception()``. This refers to "
"an exception that was *already caught*, not to an exception that was freshly "
"raised. To clear the exception state, pass ``NULL``."
msgstr
""
#:
../../c-api/exceptions.rst:557
msgid
""
"This function is not normally used by code that wants to handle exceptions. "
"Rather, it can be used when code needs to save and restore the exception "
"state temporarily. Use :c:func:`PyErr_GetHandledException` to get the "
"exception state."
msgstr
""
#:
../../c-api/exceptions.rst:566
msgid
""
"Retrieve the old-style representation of the exception info, as known from :"
"func:`sys.exc_info`. This refers to an exception that was *already caught*, "
"not to an exception that was freshly raised. Returns new references for the "
"three objects, any of which may be ``NULL``. Does not modify the exception "
"info state. This function is kept for backwards compatibility. Prefer "
"using :c:func:`PyErr_GetHandledException`."
msgstr
""
#:
../../c-api/exceptions.rst:575
msgid
""
"This function is not normally used by code that wants to handle exceptions. "
"Rather, it can be used when code needs to save and restore the exception "
"state temporarily. Use :c:func:`PyErr_SetExcInfo` to restore or clear the "
"exception state."
msgstr
""
#:
../../c-api/exceptions.rst:585
msgid
""
"Set the exception info, as known from ``sys.exc_info()``. This refers to an "
"exception that was *already caught*, not to an exception that was freshly "
"raised. This function steals the references of the arguments. To clear the "
"exception state, pass ``NULL`` for all three arguments. This function is "
"kept for backwards compatibility. Prefer using :c:func:"
"`PyErr_SetHandledException`."
msgstr
""
#:
../../c-api/exceptions.rst:594
msgid
""
"This function is not normally used by code that wants to handle exceptions. "
"Rather, it can be used when code needs to save and restore the exception "
"state temporarily. Use :c:func:`PyErr_GetExcInfo` to read the exception "
"state."
msgstr
""
#:
../../c-api/exceptions.rst:601
msgid
""
"The ``type`` and ``traceback`` arguments are no longer used and can be NULL. "
"The interpreter now derives them from the exception instance (the ``value`` "
"argument). The function still steals references of all three arguments."
msgstr
""
#:
../../c-api/exceptions.rst:609
msgid
"Signal Handling"
msgstr
""
#:
../../c-api/exceptions.rst:619
msgid
"This function interacts with Python's signal handling."
msgstr
""
#:
../../c-api/exceptions.rst:621
msgid
""
"If the function is called from the main thread and under the main Python "
"interpreter, it checks whether a signal has been sent to the processes and "
"if so, invokes the corresponding signal handler. If the :mod:`signal` "
"module is supported, this can invoke a signal handler written in Python."
msgstr
""
#:
../../c-api/exceptions.rst:626
msgid
""
"The function attempts to handle all pending signals, and then returns ``0``. "
"However, if a Python signal handler raises an exception, the error indicator "
"is set and the function returns ``-1`` immediately (such that other pending "
"signals may not have been handled yet: they will be on the next :c:func:"
"`PyErr_CheckSignals()` invocation)."
msgstr
""
#:
../../c-api/exceptions.rst:632
msgid
""
"If the function is called from a non-main thread, or under a non-main Python "
"interpreter, it does nothing and returns ``0``."
msgstr
""
#:
../../c-api/exceptions.rst:635
msgid
""
"This function can be called by long-running C code that wants to be "
"interruptible by user requests (such as by pressing Ctrl-C)."
msgstr
""
#:
../../c-api/exceptions.rst:639
msgid
""
"The default Python signal handler for :c:macro:`!SIGINT` raises the :exc:"
"`KeyboardInterrupt` exception."
msgstr
""
#:
../../c-api/exceptions.rst:650
msgid
""
"Simulate the effect of a :c:macro:`!SIGINT` signal arriving. This is "
"equivalent to ``PyErr_SetInterruptEx(SIGINT)``."
msgstr
""
#:
../../c-api/exceptions.rst:654
../../c-api/exceptions.rst:681
msgid
""
"This function is async-signal-safe. It can be called without the :term:"
"`GIL` and from a C signal handler."
msgstr
""
#:
../../c-api/exceptions.rst:664
msgid
""
"Simulate the effect of a signal arriving. The next time :c:func:"
"`PyErr_CheckSignals` is called, the Python signal handler for the given "
"signal number will be called."
msgstr
""
#:
../../c-api/exceptions.rst:668
msgid
""
"This function can be called by C code that sets up its own signal handling "
"and wants Python signal handlers to be invoked as expected when an "
"interruption is requested (for example when the user presses Ctrl-C to "
"interrupt an operation)."
msgstr
""
#:
../../c-api/exceptions.rst:673
msgid
""
"If the given signal isn't handled by Python (it was set to :py:const:`signal."
"SIG_DFL` or :py:const:`signal.SIG_IGN`), it will be ignored."
msgstr
""
#:
../../c-api/exceptions.rst:676
msgid
""
"If *signum* is outside of the allowed range of signal numbers, ``-1`` is "
"returned. Otherwise, ``0`` is returned. The error indicator is never "
"changed by this function."
msgstr
""
#:
../../c-api/exceptions.rst:689
msgid
""
"This utility function specifies a file descriptor to which the signal number "
"is written as a single byte whenever a signal is received. *fd* must be non-"
"blocking. It returns the previous such file descriptor."
msgstr
""
#:
../../c-api/exceptions.rst:693
msgid
""
"The value ``-1`` disables the feature; this is the initial state. This is "
"equivalent to :func:`signal.set_wakeup_fd` in Python, but without any error "
"checking. *fd* should be a valid file descriptor. The function should only "
"be called from the main thread."
msgstr
""
#:
../../c-api/exceptions.rst:698
msgid
"On Windows, the function now also supports socket handles."
msgstr
""
#:
../../c-api/exceptions.rst:703
msgid
"Exception Classes"
msgstr
"例外類別"
#:
../../c-api/exceptions.rst:707
msgid
""
"This utility function creates and returns a new exception class. The *name* "
"argument must be the name of the new exception, a C string of the form "
"``module.classname``. The *base* and *dict* arguments are normally "
"``NULL``. This creates a class object derived from :exc:`Exception` "
"(accessible in C as :c:data:`PyExc_Exception`)."
msgstr
""
#:
../../c-api/exceptions.rst:713
msgid
""
"The :attr:`__module__` attribute of the new class is set to the first part "
"(up to the last dot) of the *name* argument, and the class name is set to "
"the last part (after the last dot). The *base* argument can be used to "
"specify alternate base classes; it can either be only one class or a tuple "
"of classes. The *dict* argument can be used to specify a dictionary of class "
"variables and methods."
msgstr
""
#:
../../c-api/exceptions.rst:722
msgid
""
"Same as :c:func:`PyErr_NewException`, except that the new exception class "
"can easily be given a docstring: If *doc* is non-``NULL``, it will be used "
"as the docstring for the exception class."
msgstr
""
#:
../../c-api/exceptions.rst:730
msgid
"Exception Objects"
msgstr
"例外物件"
#:
../../c-api/exceptions.rst:734
msgid
""
"Return the traceback associated with the exception as a new reference, as "
"accessible from Python through :attr:`__traceback__`. If there is no "
"traceback associated, this returns ``NULL``."
msgstr
""
#:
../../c-api/exceptions.rst:741
msgid
""
"Set the traceback associated with the exception to *tb*. Use ``Py_None`` to "
"clear it."
msgstr
""
#:
../../c-api/exceptions.rst:747
msgid
""
"Return the context (another exception instance during whose handling *ex* "
"was raised) associated with the exception as a new reference, as accessible "
"from Python through :attr:`__context__`. If there is no context associated, "
"this returns ``NULL``."
msgstr
""
#:
../../c-api/exceptions.rst:755
msgid
""
"Set the context associated with the exception to *ctx*. Use ``NULL`` to "
"clear it. There is no type check to make sure that *ctx* is an exception "
"instance. This steals a reference to *ctx*."
msgstr
""
#:
../../c-api/exceptions.rst:762
msgid
""
"Return the cause (either an exception instance, or ``None``, set by "
"``raise ... from ...``) associated with the exception as a new reference, as "
"accessible from Python through :attr:`__cause__`."
msgstr
""
#:
../../c-api/exceptions.rst:769
msgid
""
"Set the cause associated with the exception to *cause*. Use ``NULL`` to "
"clear it. There is no type check to make sure that *cause* is either an "
"exception instance or ``None``. This steals a reference to *cause*."
msgstr
""
#:
../../c-api/exceptions.rst:773
msgid
""
":attr:`__suppress_context__` is implicitly set to ``True`` by this function."
msgstr
""
#:
../../c-api/exceptions.rst:778
msgid
"Return :attr:`~BaseException.args` of exception *ex*."
msgstr
""
#:
../../c-api/exceptions.rst:783
msgid
"Set :attr:`~BaseException.args` of exception *ex* to *args*."
msgstr
""
#:
../../c-api/exceptions.rst:787
msgid
""
"Implement part of the interpreter's implementation of :keyword:`!except*`. "
"*orig* is the original exception that was caught, and *excs* is the list of "
"the exceptions that need to be raised. This list contains the the unhandled "
"part of *orig*, if any, as well as the exceptions that were raised from the :"
"keyword:`!except*` clauses (so they have a different traceback from *orig*) "
"and those that were reraised (and have the same traceback as *orig*). Return "
"the :exc:`ExceptionGroup` that needs to be reraised in the end, or ``None`` "
"if there is nothing to reraise."
msgstr
""
#:
../../c-api/exceptions.rst:801
msgid
"Unicode Exception Objects"
msgstr
""
#:
../../c-api/exceptions.rst:803
msgid
""
"The following functions are used to create and modify Unicode exceptions "
"from C."
msgstr
""
#:
../../c-api/exceptions.rst:807
msgid
""
"Create a :class:`UnicodeDecodeError` object with the attributes *encoding*, "
"*object*, *length*, *start*, *end* and *reason*. *encoding* and *reason* are "
"UTF-8 encoded strings."
msgstr
""
#:
../../c-api/exceptions.rst:814
msgid
"Return the *encoding* attribute of the given exception object."
msgstr
""
#:
../../c-api/exceptions.rst:820
msgid
"Return the *object* attribute of the given exception object."
msgstr
""
#:
../../c-api/exceptions.rst:826
msgid
""
"Get the *start* attribute of the given exception object and place it into "
"*
\\
*start*. *start* must not be ``NULL``. Return ``0`` on success, ``-1`` "
"on failure."
msgstr
""
#:
../../c-api/exceptions.rst:834
msgid
""
"Set the *start* attribute of the given exception object to *start*. Return "
"``0`` on success, ``-1`` on failure."
msgstr
""
#:
../../c-api/exceptions.rst:841
msgid
""
"Get the *end* attribute of the given exception object and place it into "
"*
\\
*end*. *end* must not be ``NULL``. Return ``0`` on success, ``-1`` on "
"failure."
msgstr
""
#:
../../c-api/exceptions.rst:849
msgid
""
"Set the *end* attribute of the given exception object to *end*. Return "
"``0`` on success, ``-1`` on failure."
msgstr
""
#:
../../c-api/exceptions.rst:856
msgid
"Return the *reason* attribute of the given exception object."
msgstr
""
#:
../../c-api/exceptions.rst:862
msgid
""
"Set the *reason* attribute of the given exception object to *reason*. "
"Return ``0`` on success, ``-1`` on failure."
msgstr
""
#:
../../c-api/exceptions.rst:869
msgid
"Recursion Control"
msgstr
""
#:
../../c-api/exceptions.rst:871
msgid
""
"These two functions provide a way to perform safe recursive calls at the C "
"level, both in the core and in extension modules. They are needed if the "
"recursive code does not necessarily invoke Python code (which tracks its "
"recursion depth automatically). They are also not needed for *tp_call* "
"implementations because the :ref:`call protocol <call>` takes care of "
"recursion handling."
msgstr
""
#:
../../c-api/exceptions.rst:880
msgid
"Marks a point where a recursive C-level call is about to be performed."
msgstr
""
#:
../../c-api/exceptions.rst:882
msgid
""
"If :c:macro:`USE_STACKCHECK` is defined, this function checks if the OS "
"stack overflowed using :c:func:`PyOS_CheckStack`. In this is the case, it "
"sets a :exc:`MemoryError` and returns a nonzero value."
msgstr
""
#:
../../c-api/exceptions.rst:886
msgid
""
"The function then checks if the recursion limit is reached. If this is the "
"case, a :exc:`RecursionError` is set and a nonzero value is returned. "
"Otherwise, zero is returned."
msgstr
""
#:
../../c-api/exceptions.rst:890
msgid
""
"*where* should be a UTF-8 encoded string such as ``
\"
in instance check
\"
`` "
"to be concatenated to the :exc:`RecursionError` message caused by the "
"recursion depth limit."
msgstr
""
#:
../../c-api/exceptions.rst:894
../../c-api/exceptions.rst:902
msgid
""
"This function is now also available in the :ref:`limited API <limited-c-"
"api>`."
msgstr
""
#:
../../c-api/exceptions.rst:899
msgid
""
"Ends a :c:func:`Py_EnterRecursiveCall`. Must be called once for each "
"*successful* invocation of :c:func:`Py_EnterRecursiveCall`."
msgstr
""
#:
../../c-api/exceptions.rst:905
msgid
""
"Properly implementing :c:member:`~PyTypeObject.tp_repr` for container types "
"requires special recursion handling. In addition to protecting the stack, :"
"c:member:`~PyTypeObject.tp_repr` also needs to track objects to prevent "
"cycles. The following two functions facilitate this functionality. "
"Effectively, these are the C equivalent to :func:`reprlib.recursive_repr`."
msgstr
""
#:
../../c-api/exceptions.rst:913
msgid
""
"Called at the beginning of the :c:member:`~PyTypeObject.tp_repr` "
"implementation to detect cycles."
msgstr
""
#:
../../c-api/exceptions.rst:916
msgid
""
"If the object has already been processed, the function returns a positive "
"integer. In that case the :c:member:`~PyTypeObject.tp_repr` implementation "
"should return a string object indicating a cycle. As examples, :class:"
"`dict` objects return ``{...}`` and :class:`list` objects return ``[...]``."
msgstr
""
#:
../../c-api/exceptions.rst:922
msgid
""
"The function will return a negative integer if the recursion limit is "
"reached. In that case the :c:member:`~PyTypeObject.tp_repr` implementation "
"should typically return ``NULL``."
msgstr
""
#:
../../c-api/exceptions.rst:926
msgid
""
"Otherwise, the function returns zero and the :c:member:`~PyTypeObject."
"tp_repr` implementation can continue normally."
msgstr
""
#:
../../c-api/exceptions.rst:931
msgid
""
"Ends a :c:func:`Py_ReprEnter`. Must be called once for each invocation of :"
"c:func:`Py_ReprEnter` that returns zero."
msgstr
""
#:
../../c-api/exceptions.rst:938
msgid
"Standard Exceptions"
msgstr
""
#:
../../c-api/exceptions.rst:940
msgid
""
"All standard Python exceptions are available as global variables whose names "
"are ``PyExc_`` followed by the Python exception name. These have the type :"
"c:expr:`PyObject*`; they are all class objects. For completeness, here are "
"all the variables:"
msgstr
""
#:
../../c-api/exceptions.rst:1001
../../c-api/exceptions.rst:1134
#:
../../c-api/exceptions.rst:1179
msgid
"C Name"
msgstr
""
#:
../../c-api/exceptions.rst:1001
../../c-api/exceptions.rst:1179
msgid
"Python Name"
msgstr
""
#:
../../c-api/exceptions.rst:1001
../../c-api/exceptions.rst:1134
#:
../../c-api/exceptions.rst:1179
msgid
"Notes"
msgstr
"註解"
#:
../../c-api/exceptions.rst:1003
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