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Can I install Python 3.x and 2.x on the same Windows computer?
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I'm using 2.5, 2.6, and 3.0 from the shell with one line batch scripts of the form:
:: The @ symbol at the start turns off the prompt from displaying the command.
:: The % represents an argument, while the * means all of them.
@c:\programs\pythonX.Y\python.exe %*
Name them pytho...
Alternatives to gprof [closed]
...f time accuracy, when what you really want is to find the problems?
500 or 5000 samples would have measured the problem with greater precision, but would not have found it any more accurately.
that counting of statement or function invocations is useful.
Suppose you know a function has been called 1...
SSH Private Key Permissions using Git GUI or ssh-keygen are too open
Recently I've been unable to clone or push to github, and I'm trying to find the root cause.
25 Answers
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How do I use PHP to get the current year?
...== '2008'? ' - '.$year : '', ' Me, Inc.'; ?>
– ale5000
Jul 3 '17 at 14:42
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How would Git handle a SHA-1 collision on a blob?
This probably never happened in the real-world yet, and may never happen, but let's consider this: say you have a git repository, make a commit, and get very very unlucky: one of the blobs ends up having the same SHA-1 as another that is already in your repository. Question is, how would Git handle ...
Creating a blurring overlay view
...g. Great code and a great read. Some ideas from this post:
Use a serial queue to throttle updates from CADisplayLink.
Reuse bitmap contexts unless bounds change.
Draw smaller images using -[CALayer renderInContext:] with a 0.5f scale factor.
Other stuff
Andy Matuschak said on Twitter: “you ...
Spinlock versus Semaphore
...requires, for an application, to be properly designed that way (probably a queue of pending operations, and here, selecting the next one, leaving the actual on the queue).
– Hibou57
Jul 30 '13 at 1:11
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Accessing Session Using ASP.NET Web API
...pi.
You can easily test this out for yourself by just putting Thread.Sleep(5000) in a WebAPI method and enable Session. Run 5 requests to it and they will take a total of 25 seconds to complete. Without Session they'll take a total of just over 5 seconds.
(This same reasoning applies to SignalR).
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PostgreSQL: Difference between text and varchar (character varying)
...in an application these days—so that the rules (and attempted violations/retries) can be handled smoothly by the UI. If someone does still want to do this sort of thing in the database they could use constraints. See blog.jonanin.com/2013/11/20/postgresql-char-varchar which includes "an example of...
Asynchronously wait for Task to complete with timeout
I want to wait for a Task<T> to complete with some special rules:
If it hasn't completed after X milliseconds, I want to display a message to the user.
And if it hasn't completed after Y milliseconds, I want to automatically request cancellation .
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