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Faster s3 bucket duplication
...To quickly transfer a huge number of small files, run the script from an EC2 instance to decrease latency, and increase max_concurrent_requests to reduce the impact of latency. Eg:
aws configure set default.s3.max_concurrent_requests 200
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Convert RGBA PNG to RGB with PIL
...oad() # required for png.split()
background = Image.new("RGB", png.size, (255, 255, 255))
background.paste(png, mask=png.split()[3]) # 3 is the alpha channel
background.save('foo.jpg', 'JPEG', quality=80)
Result @80%
Result @ 50%
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Difference between binary semaphore and mutex
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How do I correctly clone a JavaScript object?
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List all environment variables from the command line
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edited Sep 26 '19 at 8:41
Peter Mortensen
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How to use Git properly with Xcode?
...in my workflow. I have used git settings found on http://shanesbrain.net/2008/7/9/using-xcode-with-git for my workflow so far.
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
...constructor is auto-generated if there is no user-declared constructor (§12.1/5).
The copy constructor is auto-generated if there is no user-declared move constructor or move assignment operator (because there are no move constructors or move assignment operators in C++03, this simplifies to "alway...
Is it possible to style a select box? [closed]
...ing:0px;
}
div.selectbox-wrapper ul li.selected {
background-color: #EAF2FB;
}
div.selectbox-wrapper ul li.current {
background-color: #CDD8E4;
}
div.selectbox-wrapper ul li {
list-style-type:none;
display:block;
margin:0;
padding:2px;
cursor:pointer;
}
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Get all elements but the first from an array
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