title: edit source code (and recompile?) julia package
body: <p>I want to edit the source code to a particular Julia package. To make it concrete, let's say I want to add a new distribution to the <a href="https://github.com/JuliaStats/Distributions.jl" rel="nofollow noreferrer"><code>Distributions.jl</code></a> package. However, I'm having difficulty finding where the Julia source code is (and imagine once I find it, I may have to rebuild/recompile Julia?). I've added the package with <code>Pkg.add("Distributions.jl")</code> but can't find it on my computer (MacOS).</p>
  
  <p>For example, if I wanted to edit a function in Python's <code>numpy</code> package, (using Anaconda) I'd navigate to <code>/Users/MYUSER/anaconda/lib/python2.7/site-packages/numpy</code> and edit the source there. How do I do this in Julia, in particular for the <code>Distributions.jl</code> package? Can you point a novice to any references?</p>