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How to get method parameter names?
... no metadata about their arguments. As a result, you will get a ValueError if you use inspect.getfullargspec() on a built-in function.
Since Python 3.3, you can use inspect.signature() to see the call signature of a callable object:
>>> inspect.signature(foo)
<Signature (a, b, c=4, *ar...
Filtering for empty or NULL names in a queryset
...
You could do this:
Name.objects.exclude(alias__isnull=True)
If you need to exclude null values and empty strings, the preferred way to do so is to chain together the conditions like so:
Name.objects.exclude(alias__isnull=True).exclude(alias__exact='')
Chaining these methods togethe...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...