异常处理 ¶

打印和清零 ¶

void PyErr_Clear ( ) ¶

清零错误指示器。若未设置错误指示器，则没有效果。

void PyErr_PrintEx ( int  set_sys_last_vars ) ¶

将标准回溯打印到 sys.stderr 并清零错误指示器。仅当错误指示器有设置时才调用此函数。(否则会导致致命错误！)

若 set_sys_last_vars 非零，变量 sys.last_type , sys.last_value and sys.last_traceback 将被分别设为打印异常的类型、值及回溯。

void PyErr_Print ( ) ¶

别名化的 PyErr_PrintEx(1) .

void PyErr_WriteUnraisable ( PyObject  *obj ) ¶

此实用函数将警告消息打印到 sys.stderr 当异常有设置但解释器实际引发异常不可能时。使用它，例如，当异常发生在 __del__() 方法。

调用函数采用单自变量 obj 标识发生不可引发异常的上下文。若可能，repr obj 将被打印在警告消息中。

引发异常 ¶

这些函数帮助您设置当前线程的错误指示器。为方便起见，其中一些函数将始终返回 NULL 指针为用于 return 语句。

void PyErr_SetString ( PyObject  *type , const char  *message ) ¶

这是设置错误指示器的最常见方式。首个自变量指定异常类型；它通常是标准异常之一，如 PyExc_RuntimeError 。不需要递增其引用计数。第 2 自变量是错误信息；解码自 'utf-8 ’.

void PyErr_SetObject ( PyObject  *type , PyObject  *value ) ¶

此函数类似于 PyErr_SetString() 但允许您为异常值指定任意 Python 对象。

PyObject * PyErr_Format ( PyObject  *exception , const char  *format , ... ) ¶

返回值：始终 NULL。

此函数设置错误指示器并返回 NULL . exception 应该是 Python 异常类。 format 和后续参数帮助格式化错误消息；它们拥有相同的意义和值如在 PyUnicode_FromFormat() . format 是 ASCII 编码字符串。

PyObject * PyErr_FormatV ( PyObject  *exception , const char  *format , va_list  vargs ) ¶

返回值：始终 NULL。

如同 PyErr_Format() ，但接受 va_list 自变量而不是可变数自变量。

3.5 版新增。

void PyErr_SetNone ( PyObject  *type ) ¶

这是简写的 PyErr_SetObject(type, Py_None) .

int PyErr_BadArgument ( ) ¶

这是简写的 PyErr_SetString(PyExc_TypeError, message) ，其中 message indicates that a built-in operation was invoked with an illegal argument. It is mostly for internal use.

PyObject * PyErr_NoMemory ( ) ¶

返回值：始终 NULL。

这是简写的 PyErr_SetNone(PyExc_MemoryError) ；它返回 NULL 因此对象分配函数可以写 return PyErr_NoMemory(); 当耗尽内存时。

PyObject * PyErr_SetFromErrno ( PyObject  *type ) ¶

返回值：始终 NULL。

这是方便函数以当 C 库函数返回错误时引发异常和设置 C 变量 errno . It constructs a tuple object whose first item is the integer errno value and whose second item is the corresponding error message (gotten from strerror() ), and then calls PyErr_SetObject(type, object) . On Unix, when the errno value is EINTR , indicating an interrupted system call, this calls 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.

PyObject * PyErr_SetFromErrnoWithFilenameObject ( PyObject  *type , PyObject  *filenameObject ) ¶

类似 PyErr_SetFromErrno() , with the additional behavior that if filenameObject 不是 NULL , it is passed to the constructor of type as a third parameter. In the case of OSError exception, this is used to define the filename attribute of the exception instance.

PyObject * PyErr_SetFromErrnoWithFilenameObjects ( PyObject  *type , PyObject  *filenameObject , PyObject  *filenameObject2 ) ¶

类似 PyErr_SetFromErrnoWithFilenameObject() , but takes a second filename object, for raising errors when a function that takes two filenames fails.

3.4 版新增。

PyObject * PyErr_SetFromErrnoWithFilename ( PyObject  *type , const char  *filename ) ¶

返回值：始终 NULL。

类似 PyErr_SetFromErrnoWithFilenameObject() , but the filename is given as a C string. filename is decoded from the filesystem encoding ( os.fsdecode() ).

PyObject * PyErr_SetFromWindowsErr ( int  ierr ) ¶

返回值：始终 NULL。

这是方便函数以引发 WindowsError . If called with ierr of 0 , the error code returned by a call to GetLastError() is used instead. It calls the Win32 function FormatMessage() to retrieve the Windows description of error code given by ierr or 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 FormatMessage() ), and then calls PyErr_SetObject(PyExc_WindowsError, object) . This function always returns NULL . Availability: Windows.

PyObject * PyErr_SetExcFromWindowsErr ( PyObject  *type , int  ierr ) ¶

返回值：始终 NULL。

类似 PyErr_SetFromWindowsErr() , with an additional parameter specifying the exception type to be raised. Availability: Windows.

PyObject * PyErr_SetFromWindowsErrWithFilename ( int  ierr , const char  *filename ) ¶

返回值：始终 NULL。

类似 PyErr_SetFromWindowsErrWithFilenameObject() , but the filename is given as a C string. filename is decoded from the filesystem encoding ( os.fsdecode() ). Availability: Windows.

PyObject * PyErr_SetExcFromWindowsErrWithFilenameObject ( PyObject  *type , int  ierr , PyObject  *filename ) ¶

类似 PyErr_SetFromWindowsErrWithFilenameObject() , with an additional parameter specifying the exception type to be raised. Availability: Windows.

PyObject * PyErr_SetExcFromWindowsErrWithFilenameObjects ( PyObject  *type , int  ierr , PyObject  *filename , PyObject  *filename2 ) ¶

类似 PyErr_SetExcFromWindowsErrWithFilenameObject() ，但接受第 2 文件名对象。可用性：Windows。

3.4 版新增。

PyObject * PyErr_SetExcFromWindowsErrWithFilename ( PyObject  *type , int  ierr , const char  *filename ) ¶

返回值：始终 NULL。

类似 PyErr_SetFromWindowsErrWithFilename() , with an additional parameter specifying the exception type to be raised. Availability: Windows.

PyObject * PyErr_SetImportError ( PyObject  *msg , PyObject  *name , PyObject  *path ) ¶

这是方便函数以引发 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 ImportError ’s respective name and path 属性。

3.3 版新增。

void PyErr_SyntaxLocationObject ( PyObject  *filename , int  lineno , int  col_offset ) ¶

Set file, line, and offset information for the current exception. If the current exception is not a SyntaxError , then it sets additional attributes, which make the exception printing subsystem think the exception is a SyntaxError .

3.4 版新增。

void PyErr_SyntaxLocationEx ( const char  *filename , int  lineno , int  col_offset ) ¶

像 PyErr_SyntaxLocationObject() ，但 filename is a byte string decoded from the filesystem encoding ( os.fsdecode() ).

3.2 版新增。

void PyErr_SyntaxLocation ( const char  *filename , int  lineno ) ¶

像 PyErr_SyntaxLocationEx() ，但省略 col_offset 参数。

void PyErr_BadInternalCall ( ) ¶

这是简写的 PyErr_SetString(PyExc_SystemError, message) ，其中 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.

发出警告 ¶

Use these functions to issue warnings from C code. They mirror similar functions exported by the Python 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, Py_DECREF() owned references and return an error value).

int PyErr_WarnEx ( PyObject  *category , const char  *message , Py_ssize_t  stack_level ) ¶

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 PyErr_WarnEx() , 2 is the function above that, and so forth.

Warning categories must be subclasses of PyExc_Warning ; PyExc_Warning 是子类对于 PyExc_Exception ; the default warning category is PyExc_RuntimeWarning . The standard Python warning categories are available as global variables whose names are enumerated at 标准警告类别 .

For information about warning control, see the documentation for the warnings module and the -W option in the command line documentation. There is no C API for warning control.

PyObject * PyErr_SetImportErrorSubclass ( PyObject  *msg , PyObject  *name , PyObject  *path ) ¶

Much like PyErr_SetImportError() but this function allows for specifying a subclass of ImportError to raise.

3.6 版新增。

int PyErr_WarnExplicitObject ( PyObject  *category , PyObject  *message , PyObject  *filename , int  lineno , PyObject  *module , PyObject  *registry ) ¶

Issue a warning message with explicit control over all warning attributes. This is a straightforward wrapper around the Python function warnings.warn_explicit() , see there for more information. The 模块 and registry arguments may be set to NULL to get the default effect described there.

3.4 版新增。

int PyErr_WarnExplicit ( PyObject  *category , const char  *message , const char  *filename , int  lineno , const char  *module , PyObject  *registry ) ¶

类似 PyErr_WarnExplicitObject() 除了 message and 模块 are UTF-8 encoded strings, and filename is decoded from the filesystem encoding ( os.fsdecode() ).

int PyErr_WarnFormat ( PyObject  *category , Py_ssize_t  stack_level , const char  *format , ... ) ¶

函数类似于 PyErr_WarnEx() ，但使用 PyUnicode_FromFormat() to format the warning message. format 是 ASCII 编码字符串。

3.2 版新增。

int PyErr_ResourceWarning ( PyObject  *source , Py_ssize_t  stack_level , const char  *format , ... ) ¶

函数类似于 PyErr_WarnFormat() ，但 category is ResourceWarning 和传递 source to warnings.WarningMessage() .

3.6 版新增。

查询错误指针 ¶

PyObject * PyErr_Occurred ( ) ¶

返回值：借位引用。

测试是否有设置错误指示器。若有设置，返回异常 type (首自变量到最后一次调用的一 PyErr_Set*() 函数或到 PyErr_Restore() )。若未设置，返回 NULL 。不拥有对返回值的引用，因此不需要 Py_DECREF() 它。

注意

不要将返回值与特定异常进行比较；使用 PyErr_ExceptionMatches() 代替，如下所示。(比较可能很易失败，因为异常可能是实例而不是类，在类异常的情况下，或它可能是期望异常的子类。)

int PyErr_ExceptionMatches ( PyObject  *exc ) ¶

相当于 PyErr_GivenExceptionMatches(PyErr_Occurred(), exc) 。这才应该被调用当有实际设置异常时；会发生内存访问违反若没有引发异常。

int PyErr_GivenExceptionMatches ( PyObject  *given , PyObject  *exc ) ¶

返回 True 若 given 异常匹配异常类型在 exc 。若 exc 是类对象，这还返回 True 当 given 是子类的实例。若 exc 是元组，元组 (及子元组递归) 中的所有异常类型都会匹配搜索。

void PyErr_Fetch ( PyObject  **ptype , PyObject  **pvalue , PyObject  **ptraceback ) ¶

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.

注意

This function is normally only used by code that needs to catch exceptions or by code that needs to save and restore the error indicator temporarily, e.g.:

{
   PyObject *type, *value, *traceback;
   PyErr_Fetch(&type, &value, &traceback);
   /* ... code that might produce other errors ... */
   PyErr_Restore(type, value, traceback);
}
											

void PyErr_Restore ( PyObject  *type , PyObject  *value , PyObject  *traceback ) ¶

Set the error indicator from the three objects. If the error indicator is already set, it is cleared first. 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.)

注意

This function is normally only used by code that needs to save and restore the error indicator temporarily. Use PyErr_Fetch() to save the current error indicator.

void PyErr_NormalizeException ( PyObject **exc, PyObject **val, PyObject **tb ) ¶

在某些情况下，值的返回通过 PyErr_Fetch() below can be “unnormalized”, meaning that *exc 是类对象但 *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.

注意

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:

if (tb != NULL) {
  PyException_SetTraceback(val, tb);
}
											

void PyErr_GetExcInfo ( PyObject  **ptype , PyObject  **pvalue , PyObject  **ptraceback ) ¶

检索异常信息，已知来自 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 。不修改异常信息状态。

注意

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 PyErr_SetExcInfo() to restore or clear the exception state.

3.3 版新增。

void PyErr_SetExcInfo ( PyObject  *type , PyObject  *value , PyObject  *traceback ) ¶

设置异常信息，作为已知来自 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. For general rules about the three arguments, see PyErr_Restore() .

注意

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 PyErr_GetExcInfo() to read the exception state.

3.3 版新增。

信号处理 ¶

int PyErr_CheckSignals ( ) ¶

This function interacts with Python’s signal handling. It checks whether a signal has been sent to the processes and if so, invokes the corresponding signal handler. If the signal module is supported, this can invoke a signal handler written in Python. In all cases, the default effect for SIGINT is to raise the KeyboardInterrupt exception. If an exception is raised the error indicator is set and the function returns -1 ；否则函数返回 0 . The error indicator may or may not be cleared if it was previously set.

void PyErr_SetInterrupt ( ) ¶

This function simulates the effect of a SIGINT signal arriving — the next time PyErr_CheckSignals() is called, KeyboardInterrupt will be raised. It may be called without holding the interpreter lock.

int PySignal_SetWakeupFd ( int  fd ) ¶

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.

值 -1 disables the feature; this is the initial state. This is equivalent to 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.

3.5 版改变： 在 Windows，函数现在还支持套接字句柄。

异常类 ¶

PyObject * PyErr_NewException ( const char  *name , PyObject  *base , PyObject  *dict ) ¶

返回值：新引用。

此实用函数创建并返回新的异常类。 name 自变量必须是新异常的名称，C 字符串形式 module.classname 。 base and dict 自变量通常为 NULL 。这创建的类对象派生自 Exception (在 C 中可访问按 PyExc_Exception ).

__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.

PyObject * PyErr_NewExceptionWithDoc ( const char  *name , const char  *doc , PyObject  *base , PyObject  *dict ) ¶

返回值：新引用。

如同 PyErr_NewException() , except that the new exception class can easily be given a docstring: If doc 为非 NULL , it will be used as the docstring for the exception class.

3.2 版新增。

异常对象 ¶

PyObject * PyException_GetTraceback ( PyObject  *ex ) ¶

返回值：新引用。

Return the traceback associated with the exception as a new reference, as accessible from Python through __traceback__ . If there is no traceback associated, this returns NULL .

int PyException_SetTraceback ( PyObject  *ex , PyObject  *tb ) ¶

将回溯关联异常设为 tb 。使用 Py_None 以清零它。

PyObject * PyException_GetContext ( PyObject  *ex ) ¶

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 __context__ . If there is no context associated, this returns NULL .

void PyException_SetContext ( PyObject  *ex , PyObject  *ctx ) ¶

Set the context associated with the exception to ctx 。使用 NULL to clear it. There is no type check to make sure that ctx is an exception instance. This steals a reference to ctx .

PyObject * PyException_GetCause ( PyObject  *ex ) ¶

返回原因 (异常实例，或 None , set by raise ... from ... ) associated with the exception as a new reference, as accessible from Python through __cause__ .

void PyException_SetCause ( PyObject  *ex , PyObject  *cause ) ¶

Set the cause associated with the exception to cause 。使用 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 .

__suppress_context__ 被隐式设为 True 通过此函数。

Unicode 异常对象 ¶

The following functions are used to create and modify Unicode exceptions from C.

PyObject * PyUnicodeDecodeError_Create ( const char  *encoding , const char  *object , Py_ssize_t  length , Py_ssize_t  start , Py_ssize_t  end , const char  *reason ) ¶

创建 UnicodeDecodeError object with the attributes encoding , object , length , start , end and reason . encoding and reason are UTF-8 encoded strings.

PyObject * PyUnicodeEncodeError_Create ( const char  *encoding , const Py_UNICODE  *object , Py_ssize_t  length , Py_ssize_t  start , Py_ssize_t  end , const char  *reason ) ¶

创建 UnicodeEncodeError object with the attributes encoding , object , length , start , end and reason . encoding and reason are UTF-8 encoded strings.

PyObject * PyUnicodeTranslateError_Create ( const Py_UNICODE  *object , Py_ssize_t  length , Py_ssize_t  start , Py_ssize_t  end , const char  *reason ) ¶

创建 UnicodeTranslateError object with the attributes object , length , start , end and reason . reason is a UTF-8 encoded string.

PyObject * PyUnicodeDecodeError_GetEncoding ( PyObject  *exc ) ¶

PyObject * PyUnicodeEncodeError_GetEncoding ( PyObject  *exc ) ¶

返回 encoding 属性为给定异常对象。

PyObject * PyUnicodeDecodeError_GetObject ( PyObject  *exc ) ¶

PyObject * PyUnicodeEncodeError_GetObject ( PyObject  *exc ) ¶

PyObject * PyUnicodeTranslateError_GetObject ( PyObject  *exc ) ¶

返回 object 属性为给定异常对象。

int PyUnicodeDecodeError_GetStart ( PyObject  *exc , Py_ssize_t  *start ) ¶

int PyUnicodeEncodeError_GetStart ( PyObject  *exc , Py_ssize_t  *start ) ¶

int PyUnicodeTranslateError_GetStart ( PyObject  *exc , Py_ssize_t  *start ) ¶

获取 start attribute of the given exception object and place it into *start . start 必须不是 NULL 。返回 0 当成功时， -1 当故障时。

int PyUnicodeDecodeError_SetStart ( PyObject  *exc , Py_ssize_t  start ) ¶

int PyUnicodeEncodeError_SetStart ( PyObject  *exc , Py_ssize_t  start ) ¶

int PyUnicodeTranslateError_SetStart ( PyObject  *exc , Py_ssize_t  start ) ¶

设置 start attribute of the given exception object to start 。返回 0 当成功时， -1 当故障时。

int PyUnicodeDecodeError_GetEnd ( PyObject  *exc , Py_ssize_t  *end ) ¶

int PyUnicodeEncodeError_GetEnd ( PyObject  *exc , Py_ssize_t  *end ) ¶

int PyUnicodeTranslateError_GetEnd ( PyObject  *exc , Py_ssize_t  *end ) ¶

获取 end attribute of the given exception object and place it into *end . end 必须不是 NULL 。返回 0 当成功时， -1 当故障时。

int PyUnicodeDecodeError_SetEnd ( PyObject  *exc , Py_ssize_t  end ) ¶

int PyUnicodeEncodeError_SetEnd ( PyObject  *exc , Py_ssize_t  end ) ¶

int PyUnicodeTranslateError_SetEnd ( PyObject  *exc , Py_ssize_t  end ) ¶

设置 end attribute of the given exception object to end 。返回 0 当成功时， -1 当故障时。

PyObject * PyUnicodeDecodeError_GetReason ( PyObject  *exc ) ¶

PyObject * PyUnicodeEncodeError_GetReason ( PyObject  *exc ) ¶

PyObject * PyUnicodeTranslateError_GetReason ( PyObject  *exc ) ¶

返回 reason 属性为给定异常对象。

int PyUnicodeDecodeError_SetReason ( PyObject  *exc , const char  *reason ) ¶

int PyUnicodeEncodeError_SetReason ( PyObject  *exc , const char  *reason ) ¶

int PyUnicodeTranslateError_SetReason ( PyObject  *exc , const char  *reason ) ¶

设置 reason attribute of the given exception object to reason 。返回 0 当成功时， -1 当故障时。

递归控制 ¶

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).

int Py_EnterRecursiveCall ( const char  *where ) ¶

Marks a point where a recursive C-level call is about to be performed.

若 USE_STACKCHECK is defined, this function checks if the OS stack overflowed using PyOS_CheckStack() . In this is the case, it sets a MemoryError and returns a nonzero value.

The function then checks if the recursion limit is reached. If this is the case, a RecursionError is set and a nonzero value is returned. Otherwise, zero is returned.

where should be a string such as " in instance check" to be concatenated to the RecursionError message caused by the recursion depth limit.

void Py_LeaveRecursiveCall ( ) ¶

Ends a Py_EnterRecursiveCall() . Must be called once for each successful invocation of Py_EnterRecursiveCall() .

Properly implementing tp_repr for container types requires special recursion handling. In addition to protecting the stack, tp_repr also needs to track objects to prevent cycles. The following two functions facilitate this functionality. Effectively, these are the C equivalent to reprlib.recursive_repr() .

int Py_ReprEnter ( PyObject  *object ) ¶

Called at the beginning of the tp_repr implementation to detect cycles.

If the object has already been processed, the function returns a positive integer. In that case the tp_repr implementation should return a string object indicating a cycle. As examples, dict objects return {...} and list objects return [...] .

The function will return a negative integer if the recursion limit is reached. In that case the tp_repr implementation should typically return NULL .

Otherwise, the function returns zero and the tp_repr implementation can continue normally.

void Py_ReprLeave ( PyObject  *object ) ¶

Ends a Py_ReprEnter() . Must be called once for each invocation of Py_ReprEnter() 返回 0。

标准异常 ¶

All standard Python exceptions are available as global variables whose names are PyExc_ followed by the Python exception name. These have the type PyObject* ; they are all class objects. For completeness, here are all the variables:

C 名称	Python 名称	注意事项
PyExc_BaseException	BaseException	(1)
PyExc_Exception	Exception	(1)
PyExc_ArithmeticError	ArithmeticError	(1)
PyExc_AssertionError	AssertionError
PyExc_AttributeError	AttributeError
PyExc_BlockingIOError	BlockingIOError
PyExc_BrokenPipeError	BrokenPipeError
PyExc_BufferError	BufferError
PyExc_ChildProcessError	ChildProcessError
PyExc_ConnectionAbortedError	ConnectionAbortedError
PyExc_ConnectionError	ConnectionError
PyExc_ConnectionRefusedError	ConnectionRefusedError
PyExc_ConnectionResetError	ConnectionResetError
PyExc_EOFError	EOFError
PyExc_FileExistsError	FileExistsError
PyExc_FileNotFoundError	FileNotFoundError
PyExc_FloatingPointError	FloatingPointError
PyExc_GeneratorExit	GeneratorExit
PyExc_ImportError	ImportError
PyExc_IndentationError	IndentationError
PyExc_IndexError	IndexError
PyExc_InterruptedError	InterruptedError
PyExc_IsADirectoryError	IsADirectoryError
PyExc_KeyError	KeyError
PyExc_KeyboardInterrupt	KeyboardInterrupt
PyExc_LookupError	LookupError	(1)
PyExc_MemoryError	MemoryError
PyExc_ModuleNotFoundError	ModuleNotFoundError
PyExc_NameError	NameError
PyExc_NotADirectoryError	NotADirectoryError
PyExc_NotImplementedError	NotImplementedError
PyExc_OSError	OSError	(1)
PyExc_OverflowError	OverflowError
PyExc_PermissionError	PermissionError
PyExc_ProcessLookupError	ProcessLookupError
PyExc_RecursionError	RecursionError
PyExc_ReferenceError	ReferenceError	(2)
PyExc_RuntimeError	RuntimeError
PyExc_StopAsyncIteration	StopAsyncIteration
PyExc_StopIteration	StopIteration
PyExc_SyntaxError	SyntaxError
PyExc_SystemError	SystemError
PyExc_SystemExit	SystemExit
PyExc_TabError	TabError
PyExc_TimeoutError	TimeoutError
PyExc_TypeError	TypeError
PyExc_UnboundLocalError	UnboundLocalError
PyExc_UnicodeDecodeError	UnicodeDecodeError
PyExc_UnicodeEncodeError	UnicodeEncodeError
PyExc_UnicodeError	UnicodeError
PyExc_UnicodeTranslateError	UnicodeTranslateError
PyExc_ValueError	ValueError
PyExc_ZeroDivisionError	ZeroDivisionError

这些是兼容性别名化的 PyExc_OSError :

C 名称	注意事项
PyExc_EnvironmentError
PyExc_IOError
PyExc_WindowsError	(3)

注意事项：

1. This is a base class for other standard exceptions.
2. 这如同 weakref.ReferenceError .
3. Only defined on Windows; protect code that uses this by testing that the preprocessor macro MS_WINDOWS is defined.

标准警告类别 ¶

All standard Python warning categories are available as global variables whose names are PyExc_ followed by the Python exception name. These have the type PyObject* ; they are all class objects. For completeness, here are all the variables:

C 名称	Python 名称	注意事项
PyExc_Warning	警告	(1)
PyExc_BytesWarning	BytesWarning
PyExc_DeprecationWarning	DeprecationWarning
PyExc_FutureWarning	FutureWarning
PyExc_ImportWarning	ImportWarning
PyExc_PendingDeprecationWarning	PendingDeprecationWarning
PyExc_ResourceWarning	ResourceWarning
PyExc_RuntimeWarning	RuntimeWarning
PyExc_SyntaxWarning	SyntaxWarning
PyExc_UnicodeWarning	UnicodeWarning
PyExc_UserWarning	UserWarning

注意事项：

1. This is a base class for other standard warning categories.