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psycopg2: insert multiple rows with one query
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My inserts didn't get registered properly until I called connection.commit() after the execute_values(...).
– Philipp
Aug 18 at 15:24
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Find region from within an EC2 instance
...e and is powered by AWS's backends. It will not work anywhere else (essentially because that IP is an APIPA). Also there is no way to get this information directly from inside the instance without connecting to a metadata source. This assumes that the 169.254.169.254 API is available, and your scrip...
Regular expression to match non-ASCII characters?
...asiest way to match non-ASCII characters in a regex? I would like to match all words individually in an input string, but the language may not be English, so I will need to match things like ü, ö, ß, and ñ. Also, this is in Javascript/jQuery, so any solution will need to apply to that.
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Difference between __getattr__ vs __getattribute__
... the attribute wasn't found the usual ways. It's good for implementing a fallback for missing attributes, and is probably the one of two you want.
__getattribute__ is invoked before looking at the actual attributes on the object, and so can be tricky to implement correctly. You can end up in infi...
HTML5 Canvas 100% Width Height of Viewport?
....getContext('2d');
// resize the canvas to fill browser window dynamically
window.addEventListener('resize', resizeCanvas, false);
function resizeCanvas() {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
/**
* You...
What's the complete range for Chinese characters in Unicode?
U+4E00..U+9FFF is part of the complete set,but not all
6 Answers
6
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How to include a quote in a raw Python string
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If you want to use double quotes in strings but not single quotes, you can just use single quotes as the delimiter instead:
r'what"ever'
If you need both kinds of quotes in your string, use a triple-quoted string:
r"""what...
String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
6 Answers
6...
Rolling back local and remote git repository by 1 commit
... would suggest something that doesn't rewrite the history:
git revert locally your last commit (creating a new commit that reverses what the previous commit did)
push the 'revert' generated by git revert.
share
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Devise form within a different controller
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As Andres says, the form calls helpers which are specified by Devise and so aren't present when you access a Devise form from a non-Devise controller.
To get around this, you need to add the following methods to the helper class of the controller you...