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Pip freeze vs. pip list

...the "requirements format". Here, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x). If you do not specify ==1.4.2, the latest version available would be installed. You can read more in "Virtualenv and pip Basics", and the official "Requirements File Format" doc...
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Upload files with HTTPWebrequest (multipart/form-data)

...ws Internal Server Error 500. There are some problems with \r\n badly positioned and spaces etc. Applied the refactoring with memory stream, writing directly to the request stream. Here is the result: public static void HttpUploadFile(string url, string file, string paramName, string contentTyp...
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What's “tools:context” in Android layout files?

Starting with a recent new version of ADT, I've noticed this new attribute on the layout XML files, for example: 9 Answers ...
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How to detect DIV's dimension changed?

...nts. While performing windows re-sizing, the inner elements may be re-positioned, and the dimension of the div may change. I'm asking if it is possible to hook the div's dimension change event? and How to do that? I currently bind the callback function to the jQuery resize event on the target DIV, h...
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What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?

...and resolving symlinks (on unixes). Also note the following example with nio.Paths: String canonical_path_string = "C:\\Windows\\System32\\"; String absolute_path_string = "C:\\Windows\\System32\\drivers\\..\\"; System.out.println(Paths.get(canonical_path_string).getParent()); System.out.println(...
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What is Express.js?

...on Rails or Sinatra is to Ruby. Express 3.x is a light-weight web application framework to help organize your web application into an MVC architecture on the server side. You can use a variety of choices for your templating language (like EJS, Jade, and Dust.js). You can then use a database like M...
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Why #egg=foo when pip-installing from git repo

...#egg=Package so pip knows what to expect at that URL. See https://pip.pypa.io/en/stable/reference/pip_install/#vcs-support more on eggs share | improve this answer | follow ...
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how to stop browser back button using javascript

...lly work. Your best bet is to warn the user: window.onbeforeunload = function() { return "Your work will be lost."; }; This page does list a number of ways you could try to disable the back button, but none are guaranteed: http://www.irt.org/script/311.htm ...
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How to Rotate a UIImage 90 degrees?

I have a UIImage that is UIImageOrientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally inten...
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When to use enumerateObjectsUsingBlock vs. for

Besides the obvious differences: 6 Answers 6 ...