nixme/pry-debugger — pull request #37 by arnab (2013-05-13 04:00:41+00:00)
Title: Use debugger aliases only when pry-debugger is available.

Currently, if pry-debugger is not installed, adding these bits to ~/.pryrc makes it show a warning: `error loading ~/.pryrc: undefined method `options' for nil:NilClass`.

This small tweak makes pry try to set up the debugger aliases only if PryDebugger is available, thus hiding the error when it's not.