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Best way to handle list.index(might-not-exist) in python?
...only code you have there!
To answer the comment:
In Python, easier to ask forgiveness than to get permission philosophy is well established, and no index will not raise this type of error for any other issues. Not that I can think of any.
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[科普] __MACOSX是什么文件夹? - 更多技术 - 清泛网 - 专注C/C++及内核技术
[科普] __MACOSX是什么文件夹?(如图,一般的设计源文件都会有__MACOSX这个目录)以下为网上搜到的资料:MacOS作为他们的开发环境。例如,许多来自领先的网络框架组织的...
(如图,一般的设计源文件都会有__MACOSX这个目录)
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Unexpected results when working with very big integers on interpreted languages
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Python works:
>>> sum(x for x in xrange(1000000000 + 1))
500000000500000000
Or:
>>> sum(xrange(1000000000+1))
500000000500000000
Python's int auto promotes to a Python long which supports arbitrary precision. It will produce the correc...
What are five things you hate about your favorite language? [closed]
... might be things that just annoy you, admitted design flaws, recognized performance problems, or any other category. You just have to hate it, and it has to be your favorite language.
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Globally catch exceptions in a WPF application?
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Use the Application.DispatcherUnhandledException Event. See this question for a summary (see Drew Noakes' answer).
Be aware that there'll be still exceptions which preclude a successful resuming of your application, like after a stack overflow, exhausted memory, or lost network connectivity while...
How to embed a text file in a .NET assembly?
...tive (hit Ctrl+. after typing Resources to get the menu to get VS to do it for you).
If something was unclear about the above description, please leave a comment and I'll edit it until it is complete or makes sense :)
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How can I see the raw SQL queries Django is running?
Is there a way to show the SQL that Django is running while performing a query?
16 Answers
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Java 8: performance of Streams vs Collections
...ew to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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How to turn off INFO logging in Spark?
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log4j.rootCategory=WARN, console
Save and restart your shell. It works for me for Spark 1.1.0 and Spark 1.5.1 on OS X.
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How to check whether a variable is a class or not?
...n't there would be no way to instantiate whatever and thus you couldn't perform the check in the first place.
– a_guest
Dec 16 '16 at 12:42
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