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Mongoose query where value is not null
...follow
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edited Jul 23 '15 at 15:27
answered May 13 '13 at 22:11
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JSON datetime between Python and JavaScript
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return ...
else:
raise TypeError, 'Object of type %s with value of %s is not JSON serializable' % (type(obj), repr(obj))
Update: Added output of type as well as value.
Update: Also handle date
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lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...lua的运行环境，相关接口如下：
//创建lua运行上下文
lua_State* luaL_newstate(void) ;
//加载lua脚本文件
int luaL_loadfile(lua_State *L, const char *filename);
lua和c/c++的数据交互通过"栈"进行 ,操作数据时，首先将数据拷贝到"栈"上，然后获取...
Targeting .NET Framework 4.5 via Visual Studio 2010
...installed the .NET Framework 4.5 on my machine expecting to be able to use it from Visual Studio 2010, since it's just a minor update that should't pose problems for Visual Studio 2010. Unfortunately I am not, even manually removing certain 4.0 and adding the corresponding 4.5 assemblies resulted ...
adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tar.gz
解压出来后，移动到usr目录
[root@adito mnt]# mv jdk1.7.0_17 /usr
配置java 参数
alternatives --install /usr/bin/java java /usr/jdk1.7.0_17/jre/bin/java 20000
alternatives --install /usr/bin/javaws javaws /usr/jdk1.7.0_17/jre/bin/javaws 20000
alternatives --install /usr/...
Unable to execute dex: GC overhead limit exceeded in Eclipse
When I downloaded the Git project OsmAnd and went to compile it,
Eclipse returned these errors:
9 Answers
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How do you create nested dict in Python?
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A nested dict is a dictionary within a dictionary. A very simple thing.
>>> d = {}
>>> d['dict1'] = {}
>>> d['dict1']['innerkey'] = 'value'
>>> d
{'dict1': {'innerkey': 'value'}}
You can also use a defaultdict from th...
Read file from line 2 or skip header row
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with open(fname) as f:
next(f)
for line in f:
#do something
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How to import module when module name has a '-' dash or hyphen in it?
...ou can't. foo-bar is not an identifier. rename the file to foo_bar.py
Edit: If import is not your goal (as in: you don't care what happens with sys.modules, you don't need it to import itself), just getting all of the file's globals into your own scope, you can use execfile
# contents of foo-bar...
Can I have onScrollListener for a ScrollView?
... instance of ViewTreeObserver, you can add an OnScrollChangedListener() to it using the method addOnScrollChangedListener().
You can see more information about this class here.
It lets you be aware of every scrolling event - but without the coordinates. You can get them by using getScrollY() or ge...