python-docs-el/c-api/veryhigh.po at 3.13 · python/python-docs-el

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#: c-api/veryhigh.rst:8
msgid "The Very High Level Layer"
#: c-api/veryhigh.rst:10
"The functions in this chapter will let you execute Python source code given "
"in a file or a buffer, but they will not let you interact in a more detailed "
"way with the interpreter."
#: c-api/veryhigh.rst:14
"Several of these functions accept a start symbol from the grammar as a "
"parameter.  The available start symbols are :c:data:`Py_eval_input`, :c:data:"
"`Py_file_input`, :c:data:`Py_single_input`, and :c:data:"
"`Py_func_type_input`.  These are described following the functions which "
"accept them as parameters."
#: c-api/veryhigh.rst:20
"Note also that several of these functions take :c:expr:`FILE*` parameters.  "
"One particular issue which needs to be handled carefully is that the :c:type:"
"`FILE` structure for different C libraries can be different and "
"incompatible.  Under Windows (at least), it is possible for dynamically "
"linked extensions to actually use different libraries, so care should be "
"taken that :c:expr:`FILE*` parameters are only passed to these functions if "
"it is certain that they were created by the same library that the Python "
"runtime is using."
#: c-api/veryhigh.rst:31
"This is a simplified interface to :c:func:`PyRun_AnyFileExFlags` below, "
"leaving *closeit* set to ``0`` and *flags* set to ``NULL``."
#: c-api/veryhigh.rst:37
"This is a simplified interface to :c:func:`PyRun_AnyFileExFlags` below, "
"leaving the *closeit* argument set to ``0``."
#: c-api/veryhigh.rst:43
"This is a simplified interface to :c:func:`PyRun_AnyFileExFlags` below, "
"leaving the *flags* argument set to ``NULL``."
#: c-api/veryhigh.rst:49
"If *fp* refers to a file associated with an interactive device (console or "
"terminal input or Unix pseudo-terminal), return the value of :c:func:"
"`PyRun_InteractiveLoop`, otherwise return the result of :c:func:"
"`PyRun_SimpleFile`.  *filename* is decoded from the filesystem encoding (:"
"func:`sys.getfilesystemencoding`).  If *filename* is ``NULL``, this function "
"uses ``\"???\"`` as the filename. If *closeit* is true, the file is closed "
"before ``PyRun_SimpleFileExFlags()`` returns."
#: c-api/veryhigh.rst:61
"This is a simplified interface to :c:func:`PyRun_SimpleStringFlags` below, "
"leaving the :c:struct:`PyCompilerFlags`\\* argument set to ``NULL``."
#: c-api/veryhigh.rst:67
"Executes the Python source code from *command* in the :mod:`__main__` module "
"according to the *flags* argument. If :mod:`__main__` does not already "
"exist, it is created.  Returns ``0`` on success or ``-1`` if an exception "
"was raised.  If there was an error, there is no way to get the exception "
"information. For the meaning of *flags*, see below."
#: c-api/veryhigh.rst:73
"Note that if an otherwise unhandled :exc:`SystemExit` is raised, this "
"function will not return ``-1``, but exit the process, as long as :c:member:"
"`PyConfig.inspect` is zero."
#: c-api/veryhigh.rst:80
"This is a simplified interface to :c:func:`PyRun_SimpleFileExFlags` below, "
"leaving *closeit* set to ``0`` and *flags* set to ``NULL``."
#: c-api/veryhigh.rst:86
"This is a simplified interface to :c:func:`PyRun_SimpleFileExFlags` below, "
"leaving *flags* set to ``NULL``."
#: c-api/veryhigh.rst:92
"Similar to :c:func:`PyRun_SimpleStringFlags`, but the Python source code is "
"read from *fp* instead of an in-memory string. *filename* should be the name "
"of the file, it is decoded from :term:`filesystem encoding and error "
"handler`. If *closeit* is true, the file is closed before "
"``PyRun_SimpleFileExFlags()`` returns."
#: c-api/veryhigh.rst:99
"On Windows, *fp* should be opened as binary mode (e.g. ``fopen(filename, "
"\"rb\")``). Otherwise, Python may not handle script file with LF line ending "
"correctly."
#: c-api/veryhigh.rst:105
"Read and execute a single statement from a file associated with an "
"interactive device according to the *flags* argument.  The user will be "
"prompted using ``sys.ps1`` and ``sys.ps2``. *filename* must be a Python :"
"class:`str` object."
#: c-api/veryhigh.rst:110
"Returns ``0`` when the input was executed successfully, ``-1`` if there was "
"an exception, or an error code from the :file:`errcode.h` include file "
"distributed as part of Python if there was a parse error.  (Note that :file:"
"`errcode.h` is not included by :file:`Python.h`, so must be included "
"specifically if needed.)"
#: c-api/veryhigh.rst:119
"This is a simplified interface to :c:func:`PyRun_InteractiveOneFlags` below, "
"leaving *flags* set to ``NULL``."
#: c-api/veryhigh.rst:125
"Similar to :c:func:`PyRun_InteractiveOneObject`, but *filename* is a :c:expr:"
"`const char*`, which is decoded from the :term:`filesystem encoding and "
"error handler`."
#: c-api/veryhigh.rst:132
"This is a simplified interface to :c:func:`PyRun_InteractiveLoopFlags` "
"below, leaving *flags* set to ``NULL``."
#: c-api/veryhigh.rst:138
"Read and execute statements from a file associated with an interactive "
"device until EOF is reached.  The user will be prompted using ``sys.ps1`` "
"and ``sys.ps2``.  *filename* is decoded from the :term:`filesystem encoding "
"and error handler`.  Returns ``0`` at EOF or a negative number upon failure."
#: c-api/veryhigh.rst:146
"Can be set to point to a function with the prototype ``int func(void)``.  "
"The function will be called when Python's interpreter prompt is about to "
"become idle and wait for user input from the terminal.  The return value is "
"ignored.  Overriding this hook can be used to integrate the interpreter's "
"prompt with other event loops, as done in :file:`Modules/_tkinter.c` in the "
"Python source code."
#: c-api/veryhigh.rst:178
"This function is only called from the :ref:`main interpreter <sub-"
"interpreter-support>`."
#: c-api/veryhigh.rst:161
"Can be set to point to a function with the prototype ``char *func(FILE "
"*stdin, FILE *stdout, char *prompt)``, overriding the default function used "
"to read a single line of input at the interpreter's prompt.  The function is "
"expected to output the string *prompt* if it's not ``NULL``, and then read a "
"line of input from the provided standard input file, returning the resulting "
"string.  For example, The :mod:`readline` module sets this hook to provide "
"line-editing and tab-completion features."
#: c-api/veryhigh.rst:170
"The result must be a string allocated by :c:func:`PyMem_RawMalloc` or :c:"
"func:`PyMem_RawRealloc`, or ``NULL`` if an error occurred."
#: c-api/veryhigh.rst:173
"The result must be allocated by :c:func:`PyMem_RawMalloc` or :c:func:"
"`PyMem_RawRealloc`, instead of being allocated by :c:func:`PyMem_Malloc` or :"
"c:func:`PyMem_Realloc`."
#: c-api/veryhigh.rst:184
"This is a simplified interface to :c:func:`PyRun_StringFlags` below, leaving "
"*flags* set to ``NULL``."
#: c-api/veryhigh.rst:190
"Execute Python source code from *str* in the context specified by the "
"objects *globals* and *locals* with the compiler flags specified by "
"*flags*.  *globals* must be a dictionary; *locals* can be any object that "
"implements the mapping protocol.  The parameter *start* specifies the start "
"symbol and must one of the :ref:`available start symbols <start-symbols>`."
#: c-api/veryhigh.rst:196
"Returns the result of executing the code as a Python object, or ``NULL`` if "
"an exception was raised."
#: c-api/veryhigh.rst:202
"This is a simplified interface to :c:func:`PyRun_FileExFlags` below, leaving "
"*closeit* set to ``0`` and *flags* set to ``NULL``."
#: c-api/veryhigh.rst:208
"This is a simplified interface to :c:func:`PyRun_FileExFlags` below, leaving "
"*flags* set to ``NULL``."
#: c-api/veryhigh.rst:214
"This is a simplified interface to :c:func:`PyRun_FileExFlags` below, leaving "
"*closeit* set to ``0``."
#: c-api/veryhigh.rst:220
"Similar to :c:func:`PyRun_StringFlags`, but the Python source code is read "
"from *fp* instead of an in-memory string. *filename* should be the name of "
"the file, it is decoded from the :term:`filesystem encoding and error "
"handler`. If *closeit* is true, the file is closed before :c:func:"
"`PyRun_FileExFlags` returns."
#: c-api/veryhigh.rst:229
"This is a simplified interface to :c:func:`Py_CompileStringFlags` below, "
"leaving *flags* set to ``NULL``."
#: c-api/veryhigh.rst:235
"This is a simplified interface to :c:func:`Py_CompileStringExFlags` below, "
"with *optimize* set to ``-1``."
#: c-api/veryhigh.rst:241
"Parse and compile the Python source code in *str*, returning the resulting "
"code object.  The start symbol is given by *start*; this can be used to "
"constrain the code which can be compiled and should be :ref:`available start "
"symbols <start-symbols>`.  The filename specified by *filename* is used to "
"construct the code object and may appear in tracebacks or :exc:`SyntaxError` "
"exception messages.  This returns ``NULL`` if the code cannot be parsed or "
"compiled."
#: c-api/veryhigh.rst:249
"The integer *optimize* specifies the optimization level of the compiler; a "
"value of ``-1`` selects the optimization level of the interpreter as given "
"by :option:`-O` options.  Explicit levels are ``0`` (no optimization; "
"``__debug__`` is true), ``1`` (asserts are removed, ``__debug__`` is false) "
"or ``2`` (docstrings are removed too)."
#: c-api/veryhigh.rst:260
"Like :c:func:`Py_CompileStringObject`, but *filename* is a byte string "
"decoded from the :term:`filesystem encoding and error handler`."
#: c-api/veryhigh.rst:267
"This is a simplified interface to :c:func:`PyEval_EvalCodeEx`, with just the "
"code object, and global and local variables.  The other arguments are set to "
"``NULL``."
#: c-api/veryhigh.rst:274
"Evaluate a precompiled code object, given a particular environment for its "
"evaluation.  This environment consists of a dictionary of global variables, "
"a mapping object of local variables, arrays of arguments, keywords and "
"defaults, a dictionary of default values for :ref:`keyword-only <keyword-"
"only_parameter>` arguments and a closure tuple of cells."
#: c-api/veryhigh.rst:283
"Evaluate an execution frame.  This is a simplified interface to :c:func:"
"`PyEval_EvalFrameEx`, for backward compatibility."
#: c-api/veryhigh.rst:289
"This is the main, unvarnished function of Python interpretation.  The code "
"object associated with the execution frame *f* is executed, interpreting "
"bytecode and executing calls as needed.  The additional *throwflag* "
"parameter can mostly be ignored - if true, then it causes an exception to "
"immediately be thrown; this is used for the :meth:`~generator.throw` methods "
"of generator objects."
#: c-api/veryhigh.rst:296
"This function now includes a debug assertion to help ensure that it does not "
"silently discard an active exception."
#: c-api/veryhigh.rst:303
"This function changes the flags of the current evaluation frame, and returns "
"true on success, false on failure."
#: c-api/veryhigh.rst:309
"This is the structure used to hold compiler flags.  In cases where code is "
"only being compiled, it is passed as ``int flags``, and in cases where code "
"is being executed, it is passed as ``PyCompilerFlags *flags``.  In this "
"case, ``from __future__ import`` can modify *flags*."
#: c-api/veryhigh.rst:314
"Whenever ``PyCompilerFlags *flags`` is ``NULL``, :c:member:`~PyCompilerFlags."
"cf_flags` is treated as equal to ``0``, and any modification due to ``from "
"__future__ import`` is discarded."
#: c-api/veryhigh.rst:320
msgid "Compiler flags."
#: c-api/veryhigh.rst:324
"*cf_feature_version* is the minor Python version. It should be initialized "
"to ``PY_MINOR_VERSION``."
#: c-api/veryhigh.rst:327
"The field is ignored by default, it is used if and only if ``PyCF_ONLY_AST`` "
"flag is set in :c:member:`~PyCompilerFlags.cf_flags`."
#: c-api/veryhigh.rst:330
msgid "Added *cf_feature_version* field."
#: c-api/veryhigh.rst:333
msgid "The available compiler flags are accessible as macros:"
#: c-api/veryhigh.rst:342
"See :ref:`compiler flags <ast-compiler-flags>` in documentation of the :py:"
"mod:`!ast` Python module, which exports these constants under the same names."
#: c-api/veryhigh.rst:346
"The \"``PyCF``\" flags above can be combined with \"``CO_FUTURE``\" flags "
"such as :c:macro:`CO_FUTURE_ANNOTATIONS` to enable features normally "
"selectable using :ref:`future statements <future>`. See :ref:"
"`c_codeobject_flags` for a complete list."
#: c-api/veryhigh.rst:355
msgid "Available start symbols"
#: c-api/veryhigh.rst:362
"The start symbol from the Python grammar for isolated expressions; for use "
"with :c:func:`Py_CompileString`."
#: c-api/veryhigh.rst:370
"The start symbol from the Python grammar for sequences of statements as read "
"from a file or other source; for use with :c:func:`Py_CompileString`.  This "
"is the symbol to use when compiling arbitrarily long Python source code."
#: c-api/veryhigh.rst:379
"The start symbol from the Python grammar for a single statement; for use "
"with :c:func:`Py_CompileString`. This is the symbol used for the interactive "
"interpreter loop."
#: c-api/veryhigh.rst:388
"The start symbol from the Python grammar for a function type; for use with :"
"c:func:`Py_CompileString`. This is used to parse \"signature type comments\" "
"from :pep:`484`."
#: c-api/veryhigh.rst:392
msgid "This requires the :c:macro:`PyCF_ONLY_AST` flag to be set."
#: c-api/veryhigh.rst:395
msgid ":py:class:`ast.FunctionType`"
#: c-api/veryhigh.rst:396
msgid ":pep:`484`"
#: c-api/veryhigh.rst:402
msgid "Stack Effects"
#: c-api/veryhigh.rst:405
msgid ":py:func:`dis.stack_effect`"
#: c-api/veryhigh.rst:410
msgid "Sentinel value representing an invalid stack effect."
#: c-api/veryhigh.rst:412
msgid "This is currently equivalent to ``INT_MAX``."
#: c-api/veryhigh.rst:419
msgid "Compute the stack effect of *opcode* with argument *oparg*."
#: c-api/veryhigh.rst:435
"On success, this function returns the stack effect; on failure, this "
"returns :c:macro:`PY_INVALID_STACK_EFFECT`."
#: c-api/veryhigh.rst:429
"Similar to :c:func:`PyCompile_OpcodeStackEffect`, but don't include the "
"stack effect of jumping if *jump* is zero."
#: c-api/veryhigh.rst:432
"If *jump* is ``0``, this will not include the stack effect of jumping, but "
"if *jump* is ``1`` or ``-1``, this will include it."
#: c-api/veryhigh.rst:368 c-api/veryhigh.rst:386
msgid "Py_CompileString (C function)"
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