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How to make Twitter Bootstrap tooltips have multiple lines?

I am currently using the below function to create text that will be displayed using Bootstrap’s tooltip plugin. How come multiline tooltips only work with <br> and not \n ? I prefer that there is not any HTML in my links’ title attributes. ...
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How do I retrieve the number of columns in a Pandas data frame?

How do you programmatically retrieve the number of columns in a pandas dataframe? I was hoping for something like: 6 Answer...
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Test if remote TCP port is open from a shell script

I'm looking for a quick and simple method for properly testing if a given TCP port is open on a remote server, from inside a Shell script. ...
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Python Regex - How to Get Positions and Values of Matches

How can I get the start and end positions of all matches using the re module? For example given the pattern r'[a-z]' and the string 'a1b2c3d4' I'd want to get the positions where it finds each letter. Ideally, I'd like to get the text of the match back too. ...
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Build Eclipse Java Project from Command Line

Is there a way to compile an Eclipse-based Java project from the command line? 8 Answers ...
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What are best practices for using SmtpClient, SendAsync and Dispose under .NET 4.0

I'm a bit perplexed on how to manage SmtpClient now that it is disposable, especially if I make calls using SendAsync. Presumably I should not call Dispose until SendAsync completes. But should I ever call it (e.g., using "using"). The scenario is a WCF service which mails out email periodically ...
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Ways to save enums in database

What is the best way to save enums into a database? 11 Answers 11 ...
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Is std::unique_ptr required to know the full definition of T?

I have some code in a header that looks like this: 8 Answers 8 ...
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Add a number to each selection in Sublime Text 2, incremented once per selection

Is there a way to add insert a number that is incremented once per cursor in Sublime Text 2? 3 Answers ...
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Why do you need to invoke an anonymous function on the same line?

I was reading some posts about closures and saw this everywhere, but there is no clear explanation how it works - everytime I was just told to use it...: ...