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Manually raising (throwing) an exception in Python

How can I raise an exception in Python so that it can later be caught via an except block? 8 Answers ...
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What is the recommended approach towards multi-tenant databases in MongoDB?

I'm thinking of creating a multi-tenant app using MongoDB. I don't have any guesses in terms of how many tenants I'd have yet, but I would like to be able to scale into the thousands. ...
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Update Item to Revision vs Revert to Revision

I've started to use Subversion with TortoiseSVN. If I open up the log and right click on an old revision I see two options that sound like they roll back to an older version: "Update item to revision" and "Revert to this revision". ...
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Add legend to ggplot2 line plot

I have a question about legends in ggplot2. I managed to plot three lines in the same graph and want to add a legend with the three colors used. This is the code used ...
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Transactions in REST?

I'm wondering how you'd implement the following use-case in REST. Is it even possible to do without compromising the conceptual model? ...
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How does one write code that best utilizes the CPU cache to improve performance?

This could sound like a subjective question, but what I am looking for are specific instances, which you could have encountered related to this. ...
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Is it possible to change icons in Visual Studio 2012?

Is there any way to replace VS2012 solution explorer's icons with VS2010 ones? At least 'folder' icon :( 4 Answers ...
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Python __str__ versus __unicode__

Is there a python convention for when you should implement __str__() versus __unicode__() . I've seen classes override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it ne...
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Why is it bad style to `rescue Exception => e` in Ruby?

Ryan Davis’s Ruby QuickRef says (without explanation): 6 Answers 6 ...
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How to filter SQL results in a has-many-through relation

Assuming I have the tables student , club , and student_club : 13 Answers 13 ...