What explains the difference in behavior of boolean and bitwise operations on lists vs NumPy arrays? 8 Answers ...

...might prefer range(): In python 3, range() does what xrange() used to do and xrange() does not exist. If you want to write code that will run on both Python 2 and Python 3, you can't use xrange(). range() can actually be faster in some cases - eg. if iterating over the same sequence multiple time...

... @Stephen using itemgetter is faster and simpler: key=itemgetter(1) and at the beginning of the file: from operator import itemgetter – Joschua Mar 13 '13 at 20:08 ...

Quite often it is the case that you're writing a project of some kind, and after a while it becomes clear that some component of the project is actually useful as a standalone component (a library, perhaps). If you've had that idea from early on, then there's a fair chance that most of that code is ...

I've searched around and haven't really found a clear answer as to when you'd want to use .First and when you'd want to use .FirstOrDefault with LINQ. ...

What is the difference between == and .equals() in Scala, and when to use which? 5 Answers ...

... The key idea is you form a set of the rows you want to remove, and keep the complement of that set. In R, the complement of a set is given by the '-' operator. So, assuming the data.frame is called myData: myData[-c(2, 4, 6), ] # notice the - Of course, don't forget to "reassign" ...

...this huge (is 11000 lines huge?) mainmodule.cpp source file in our project and every time I have to touch it I cringe. 34 A...

How do I convert command-line arguments into a bash script array? 7 Answers 7 ...

What is the difference between Digest and Basic Authentication ? 4 Answers 4 ...