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Best way to pretty print a hash

...have a large hash with nested arrays and hashes. I would like to simply print it out so it 'readable' to the user. 12 Answ...
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Can you configure log4net in code instead of using a config file?

I understand why log4net uses app.config files for setting up logging - so you can easily change how information is logged without needing to recompile your code. But in my case I do not want to pack a app.config file with my executable. And I have no desire to modify my logging setup. ...
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When should TaskCompletionSource be used?

AFAIK, all it knows is that at some point, its SetResult or SetException method is being called to complete the Task<T> exposed through its Task property. ...
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Is it safe to resolve a promise multiple times?

I have an i18n service in my application which contains the following code: 7 Answers ...
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Scala @ operator

... It enables one to bind a matched pattern to a variable. Consider the following, for instance: val o: Option[Int] = Some(2) You can easily extract the content: o match { case Some(x) => println(x) case None => } But what if you w...
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The command rbenv install is missing

In Ubuntu 10.04 I just installed rbenv . The install command is not present. 8 Answers ...
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How can I make Array.Contains case-insensitive on a string array?

I am using the Array.Contains method on a string array. How can I make that case-insensitive? 4 Answers ...
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Is there a difference between using a dict literal and a dict constructor?

Using PyCharm, I noticed it offers to convert a dict literal : 10 Answers 10 ...
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In Intellij, how do I toggle between camel case and underscore spaced?

At my company we have two different style guides for java vs sql. In java I have a field named historyOfPresentIllness and when i write the sql, I want to name it history_of_present_illness . Is there a keyboard shortcut to switch from one to the other when I have the phrase highlighted? Or pe...
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

... I think you need the column reference to be a list. Do you perhaps mean: df[['col1','col2','col3','col4']].groupby(['col1','col2']).agg(['mean', 'count']) – rysqui Dec 17 '14 at 6:14 ...