The `alembic` Python module doesn't automatically load the `imath` module. See also - [this blog post](https://github.com/murphyrandle/murphyrandle.github.io/blob/master/_posts/2013-02-23-building-pyalembic.md) - [this thread](https://groups.google.com/forum/?fromgroups=#!topic/alembic-discussion/iqo1MKE4kyc) for more info.
The
alembicPython module doesn't automatically load theimathmodule.See also
for more info.