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How to customize a requirements.txt for multiple environments?

I have two branches, Development and Production. Each has dependencies, some of which are different. Development points to dependencies that are themselves in development. Likewise for Production. I need to deploy to Heroku which expects each branch's dependencies in a single file called 'requiremen...
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Correct way to quit a Qt program?

How should I quit a Qt Program, e.g when loading a data file, and discovered file corruption, and user need to quit this app or re-initiate data file? ...
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How do detect Android Tablets in general. Useragent?

I have looked everywhere. We are using a Motorola Zoom to try our tablet site testing. The issue is that the Android Useragent is a general Useragent and there is no difference between tablet Android and mobile Android. I don't want to just target a specific device like the Xoom Useragent since And...
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Difference between Eclipse Europa, Helios, Galileo

What is the difference between versions of Eclipse (Europa, Helios, Galileo)? Which is the best for desktop application? 7 ...
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Get Enum from Description attribute [duplicate]

I have a generic extension method which gets the Description attribute from an Enum : 6 Answers ...
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Mocking vs. Spying in mocking frameworks

In mocking frameworks, you can mock an object or spy on it. What's the difference between the two and when would/should I use one over the other? ...
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Test if something is not undefined in JavaScript

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text-overflow:ellipsis in Firefox 4? (and FF5)

The text-overflow:ellipsis; CSS property must be one of the few things that Microsoft has done right for the web. 5 Answe...
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List comprehension on a nested list?

I have this nested list: 12 Answers 12 ...
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SCOPE_IDENTITY() for GUIDs?

Can anyone tell me if there is an equivalent of SCOPE_IDENTITY() when using GUIDs as a primary key in SQL Server? 5 Answe...