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Can't pickle when using multiprocessing Pool.map()
...ed Feb 28 '17 at 14:31
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Nov 29 '09 at 22:16
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Center a position:fixed element
...l not center vertically and won't work in IE6/7. */
left: 0;
right: 0;
Again, this works only in IE8+ if you care about IE, and this centers only horizontally not vertically.
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Insert, on duplicate update in PostgreSQL?
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@FrançoisBeausoleil: the chance of a race condition is much smaller than with the "try/handle exception" approach
– a_horse_with_no_name
Feb 21 '12 at 15:32
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How do you create an asynchronous method in C#?
... To support such a paradigm with Tasks, we need a way to retain the Task façade and the ability to refer to an arbitrary asynchronous operation as a Task, but to control the lifetime of that Task according to the rules of the underlying infrastructure that’s providing the asynchrony, and to do so...
How to toggle a value in Python
...0
>>> x ^= 1
>>> x
1
The technique generalizes to any pair of integers. The xor-by-one step is replaced with a xor-by-precomputed-constant:
>>> A = 205
>>> B = -117
>>> t = A ^ B # precomputed toggle constant
>>> x = A
>>> x ^...
List comprehension rebinds names even after scope of comprehension. Is this right?
...s scope affecting the surrounding scope.
– Felipe Gonçalves Marques
Sep 28 '18 at 10:25
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千亿时代 网游走到十字路口 - 资讯 - 清泛网 - 专注C/C++及内核技术
...、同质化”的问题仍然大量存在，固然一些企业开始围绕IP做文章，研发精品重度游戏，但仍然不免在营销、付费等层面存在“捞一把快钱”的想法。“毕竟基于数亿手机游戏用户和强势发行渠道，赚钱的诱惑太大也太容易。况...
Find the host name and port using PSQL commands
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This doesn't work if you have multiple servers in the same cluster, unfortunately...
– Vitor Baptista
Mar 1 '13 at 22:57
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How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
... kernel. Adds some context to your answer.
– Daniel Näslund
Jun 7 '12 at 10:58
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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
... to implement multitouch: Rotation Detector
Xinyue Deng dengxinyue0420@gmail.com
DRAFT (March 6, 2016): Building extensions requires the App Inventor extensions capability, which is not yet incorporated into the App Inventor release. But you can try some ofary AI2 server.
You can implement the...