How do I install from a local cache with pip?
I install a lot of the same packages in different virtualenv environments. Is there a way that I can download a package once and then have pip install from a local cache? This would reduce download bandwidth and time.
Scala Programming for Android
I have followed the tutorial at Scala and Android with Scala 2.7.3 final. The resulting Android App works but even the most basic application takes several minutes (!) to compile and needs 900 kb compressed, which is a show stopper for mobile applications. Additionally, the IDE runs out of memory every now and then. I assume dex is not made for big libraries like the scala-library. So my question
What is the difference between self-types and trait subclasses?
A self-type for a trait A: trait B trait A { this: B => } says that "A cannot be mixed into a concrete class that does not also extend B". On the other hand, the following: trait B trait A extends B says that "any (concrete or abstract) class mixing in A will also be mixing in B". Don't these two statements mean the same thing? The self-type seems to serve only to create the possibility of a simpl
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