"""Implement a version of `IPython.embed()` which works during doctesting.
This provides a `dt_embed()` function that is similar to `IPython.embed`, but
which can run when used inside code that will be run via doctests (where the
default `embed` locks up due to the hijacking of `sys.stdout` that doctest
See https://github.com/ipython/ipython/issues/90 for the full details.