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How does collections.defaultdict work?

I've read the examples in python docs, but still can't figure out what this method means. Can somebody help? Here are two examples from the python docs ...
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Export Data from mysql Workbench 6.0

I'm trying to export my database, using MySQL Workbench 6.0 on Windows, to send to my db instance in Amazon RDS, but i'm getting this error: ...
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How do you run NUnit tests from Jenkins?

I'm looking to run automated NUnit tests for a C# application, nightly and on each commit to svn. 9 Answers ...
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How do you use “

I just finished reading about scoping in the R intro , and am very curious about the <<- assignment. 6 Answers ...
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VIM + Syntastic: how to disable the checker?

I'm using Syntastic which is enabled for my HTML files. Since I have a very big file with "validator w3" checkers enabled, GVIM or VIM became very slow while saving the file (:w). ...
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Installing Python 3 on RHEL

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Why doesn't this code simply print letters A to Z?

This snippet gives the following output (newlines are replaced by spaces): 13 Answers ...
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Const before or const after?

To start you probably know that const can be used to make either an object's data or a pointer not modifiable or both. 7 ...
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How to get parameters from the URL with JSP

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How can I convert a DateTime to the number of seconds since 1970?

I'm trying to convert a C# DateTime variable to Unix time, ie, the number of seconds since Jan 1st, 1970. It looks like a DateTime is actually implemented as the number of 'ticks' since Jan 1st, 0001. ...