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What is the difference between range and xrange functions in Python 2.X?

Apparently xrange is faster but I have no idea why it's faster (and no proof besides the anecdotal so far that it is faster) or what besides that is different about ...
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Node.js vs .Net performance

I've read a lot about Node.js being fast and able to accommodate large amounts of load. Does anyone have any real world evidence of this vs other frameworks, particularly .Net? Most of the articles i've read are anecdotal or don't have comparisons to .Net. ...
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Encrypt & Decrypt using PyCrypto AES 256

...build two functions using PyCrypto that accept two parameters: the message and the key, and then encrypt/decrypt the message. ...
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What's a correct and good way to implement __hash__()?

What's a correct and good way to implement __hash__() ? 6 Answers 6 ...
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How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War

... Ok I got it. I just had to install Sass using gem install sass and now everything is fine...couldn't be easier. share | improve this answer | follow ...
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Xcode 5 - “iOS Simulator failed to install application” every time I switch simulators

...t of an application from iOS 7.0 to a release prior to iOS 7.0, building and running the application may fail with the message “iOS Simulator failed to install the application.” Go to the iOS home screen, click and hold the application icon, then tap the hovering “X” button to ...
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Casting vs using the 'as' keyword in the CLR

...g, which has largely replaced the as operator, as you can now write: if (randomObject is TargetType tt) { // Use tt here } Note that tt is still in scope after this, but not definitely assigned. (It is definitely assigned within the if body.) That's slightly annoying in some cases, so if you ...
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What do the terms “CPU bound” and “I/O bound” mean?

What do the terms "CPU bound" and "I/O bound" mean? 11 Answers 11 ...
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Difference between Observer, Pub/Sub, and Data Binding

...hat is the difference between the Observer Pattern , Publish/Subscribe , and Data Binding ? 4 Answers ...
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Difference between a User and a Login in SQL Server

...ly don't mess with. One of them that has me confused is the area of Logins and Users. Seems like it should be a pretty simple topic... ...