Uninformative stack traces on import errors

[maresb]

I think it'd help to put the import statements inside of def compile_X_model, because otherwise information about the ImportError isn't being passed on.

[canyon289]

Thanks Ben!!

[maresb]

Glad I could help @canyon289! Did my suggestion of running from nutpie import compile_pymc lead to more info?

I can open a PR for this shortly. This is a quick one, but it was too late for me last night.

[canyon289]

I didnt get a chance, I'll try it out tomorrow

[maresb]

Proposed fix is up in #72.

@canyon289 I'm still interested in knowing what went wrong with your environment, so please do send me the stack trace when you get the chance.

[canyon289]

It was this, this is way more informative!

[maresb]

Thanks @canyon289! This should now be handled better by #72.