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How to use Python's pip to download and keep the zipped files for a package?

If I want to use the pip command to download a package (and its dependencies), but keep all of the zipped files that get downloaded (say, django-socialregistration.tar.gz) - is there a way to do that? ...
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Delegates in swift?

... It is not that different from obj-c. First, you have to specify the protocol in your class declaration, like following: class MyClass: NSUserNotificationCenterDelegate The implementation will look like following: // NSUserNotificationCenterDelegate implementation func userN...
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WARNING: UNPROTECTED PRIVATE KEY FILE! when trying to SSH into Amazon EC2 Instance

I'm working to set up Panda on an Amazon EC2 instance. I set up my account and tools last night and had no problem using SSH to interact with my own personal instance, but right now I'm not being allowed permission into Panda's EC2 instance. Getting Started with Panda ...
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Reverting single file in SVN to a particular revision

I have a file as shown below in an SVN repo that I would like to revert to a previous version. What is the way to do this in SVN? I want only downgrade this particular file to an older version, not the whole repo. ...
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What is difference between functional and imperative programming languages?

...ming (OOP) languages such as C#, Visual Basic, C++, and Java were designed to primarily support imperative (procedural) programming, whereas Haskell/gofer like languages are purely functional. Can anybody elaborate on what is the difference between these two ways of programming? ...
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What is the best practice for dealing with passwords in git repositories?

I've got a little Bash script that I use to access twitter and pop up a Growl notification in certain situations. What's the best way to handle storing my password with the script? ...
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Getting started with Haskell

For a few days I've tried to wrap my head around the functional programming paradigm in Haskell. I've done this by reading tutorials and watching screencasts, but nothing really seems to stick. Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for m...
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Java: difference between strong/soft/weak/phantom reference

I have read this article about the topic, but I don't really understand it. Please give me some advice along with examples when describing the concepts. ...
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Learning Python from Ruby; Differences and Similarities

I know Ruby very well. I believe that I may need to learn Python presently. For those who know both, what concepts are similar between the two, and what are different? ...
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Redirect stderr and stdout in Bash

I want to redirect both stdout and stderr of a process to a single file. How do I do that in Bash? 15 Answers ...