Func('now')

[samuelcolvin]

should raise a more sensible error

Currently

from buildpg import Func
print(Func('now'))

Raises an ugly RuntimeError: generator raised StopIteration error which is not easy to track down.

This was with buildpg v0.1, later version might have fixed the problem.

[samuelcolvin]

I think behaved differently in python 3.6.