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What's the idiomatic syntax for prepending to a short python list?
...eally only efficient for rather short lists, as you ask.
Here's a snippet from the CPython source where this is implemented - and as you can see, we start at the end of the array and move everything down by one for every insertion:
for (i = n; --i >= where; )
items[i+1] = items[i];
If you...
How to make a node.js application run permanently?
On a Debian server, I installed Node.js. I understand how to launch an app from putty with this command line:
19 Answers
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Change IPython/Jupyter notebook working directory
...reference in front of the command. If that doesn't work please try working from the earlier version. Very conveniently, now "Start in:" can be empty in my tests with 4.1.1 and later. Perhaps they read this entry on SO and liked it, so long upvotes, nobody needs this anymore :)
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How do I find all of the symlinks in a directory tree?
...nts information
about files, the information used shall be taken from the prop‐
erties of the file to which the link points, not from the link
itself (unless it is a broken symbolic link or find is unable to
examine the file to which the link points). U...
TypeError: method() takes 1 positional argument but 2 were given
...does indeed have two arguments - it's just that the first one is implicit, from the point of view of the caller.
This is because most methods do some work with the object they're called on, so there needs to be some way for that object to be referred to inside the method. By convention, this first ...
Detecting iOS / Android Operating system
...i.test(userAgent)) {
return "Android";
}
// iOS detection from: http://stackoverflow.com/a/9039885/177710
if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
return "iOS";
}
return "unknown";
}
...
Handling a colon in an element ID in a CSS selector [duplicate]
...tion are incorrect. You need to escape both the underscore (to prevent IE6 from ignoring the rule altogether in some edge cases) and the colon character for the selector to work properly across different browsers.
Technically, the colon character can be escaped as \:, but that doesn’t work in IE ...
Does running git init twice initialize a repository or reinitialize an existing repo?
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From the git docs:
Running git init in an existing repository is safe. It will not overwrite things that are already there. The primary reason for rerunning git init is to pick up newly added templates.
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bash: mkvirtualenv: command not found
...every time you restart your shell, it's probably better to grab the output from the "which" command first, and then put the "source" line in your shell, something like this:
echo "source /path/to/virtualenvwrapper.sh" >> ~/.profile
^ This may differ slightly based on your shell. Also, be car...
Is there a documented way to set the iPhone orientation?
...
If you want to force it to rotate from portrait to landscape here is the code. Just note that you need adjust the center of your view. I noticed that mine didn't place the view in the right place. Otherwise, it worked perfectly. Thanks for the tip.
if(UIInte...