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Set cache-control for entire S3 bucket automatically (using bucket policies?)

... existing and future files and was hoping to do it in a bucket policy. I know I can edit the existing ones and I know how to specify them on put if I upload them myself but unfortunately the app that uploads them cannot set the headers as it uses s3fs to copy the files there. ...
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Save classifier to disk in scikit-learn

...digits.data, digits.target) 0.9526989426822482 Edit: in Python 3.8+ it's now possible to use pickle for efficient pickling of object with large numerical arrays as attributes if you use pickle protocol 5 (which is not the default). ...
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How can I install MacVim on OS X?

...tall vim && brew install macvim Step 4. Run brew link macvim You now have the latest versions of vim and macvim managed by brew. Run brew update && brew upgrade every once in a while to upgrade them. This includes the installation of the CLI mvim and the mac application (which bot...
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Why use pointers? [closed]

I know this is a really basic question, but I've just started with some basic C++ programming after coding a few projects with high-level languages. ...
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Understand the “Decorator Pattern” with a real world example

... sell few pizza varieties and they will also provide toppings in the menu. Now imagine a situation wherein if the pizza shop has to provide prices for each combination of pizza and topping. Even if there are four basic pizzas and 8 different toppings, the application would go crazy maintaining all t...
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What does threadsafe mean?

... int tmp = myInt; tmp = tmp + 1; myInt = tmp; return tmp; } Now thread A and thread B both would like to execute AddOne(). but A starts first and reads the value of myInt (0) into tmp. Now for some reason the scheduler decides to halt thread A and defer execution to thread B. Thread ...
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Defining custom attrs

... only xmlns:android="http://schemas.android.com/apk/res/android". You must now also add xmlns:whatever="http://schemas.android.com/apk/res-auto". Example: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:whatever="ht...
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Why is a combiner needed for reduce method that converts type in java 8

...s processed by its own thread in the sequential fashion I described above. Now, if we have N threads, we have N intermediate results. These need to be reduced down to one result. Since each intermediate result is of type T, and we have several, we can use the same accumulator function to reduce thos...
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In C++, is it still bad practice to return a vector from a function?

...ts—such as vectors/arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination? ...
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How to detect when cancel is clicked on file input?

...dn't get it to fire at all using document.body.addEventListener.. I don't know why. Instead I got the same result with window.addEventListener. – WoodenKitty Aug 13 '16 at 2:21 3 ...