astropy/astropy — pull request #188 by eteq (2012-04-01 01:40:23+00:00)
Title: moved imports for concolve.py inside function

I noticed while working on building the documentation that the documentation build would fail with import errors due to ``convolve.py`` having a bunch of imports at the top-level that depend on the Cython files being already compiled. This PR moves those imports inside the convolve function so that it is now possible to import convolve.py even if the C extensions aren't yet/are improperly built.

@astrofrog, given that you wrote `convolve`, is this alright with you?