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Timeout on a function call

... You may use the signal package if you are running on UNIX: In [1]: import signal # Register an handler for the timeout In [2]: def handler(signum, frame): ...: print("Forever is over!") ...: raise Exception("end of time") ...: # This function *may* run for an i...
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The differences between .build, .create, and .create! and when should they be used?

...ias for .new. It works one way in Rails 3 and another way in Rails < 3.x The most important part, however, is that these methods can be called through an association (has_many, etc.) to automatically link the two models. ...
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How to force use of overflow menu on devices with menu button

...iguity for the user, essentially having two buttons available to open the exact same menu. To address the issue of consistency across devices: Ultimately it's more important to the user experience that your app behave consistently with every other app on the same device, than that it behave consis...
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MIN/MAX vs ORDER BY and LIMIT

... In the worst case, where you're looking at an unindexed field, using MIN() requires a single full pass of the table. Using SORT and LIMIT requires a filesort. If run against a large table, there would likely be a significant difference in percieved performance. As a meaning...
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How do I allow HTTPS for Apache on localhost?

...er much hairpulling... I found that my Apache install comes with openssl.exe which is helpful. If you don't have a copy, you'll need to download it. My copy was in Apache2\bin folder which is how I reference it below. Steps: Ensure you have write permissions to your Apache conf folder Open a c...
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Why does std::getline() skip input after a formatted extraction?

...you provided yourself but rather with the default behavior std::getline() exhibits. When you provided your input for the name (std::cin >> name), you not only submitted the following characters, but also an implicit newline was appended to the stream: "John\n" A newline is always appended t...
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How to check if std::map contains a key without doing insert?

...and I'm sure most reasonable systems), map::count is implemented as find(__x) == end() ? 0 : 1;. For multimap the you may have a performance argument, but that's not OP's question and I still prefer elegance. – Potatoswatter Jun 3 '11 at 23:09 ...
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How can I find the location of origin/master in git, and how do I change it?

...version to Git. I followed the tutorial here: http://www.simplisticcomplexity.com/2008/03/05/cleanly-migrate-your-subversion-repository-to-a-git-repository/ ...
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How to divide flask app into multiple py files?

... answered Aug 16 '12 at 20:09 pixelistikpixelistik 6,42822 gold badges2828 silver badges3939 bronze badges ...
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Python dict how to create key or append an element to key?

I have an empty dictionary. Name: dict_x It is to have keys of which values are lists. 5 Answers ...