Using ipython as python-shell-interpreter breaks helm-pydoc

[nixmaniack]

I use ipython as my python-shell-interpreter. When helm-pydoc is invoked, I only get Help on unicode object: in the documentation buffer no matter what I select.

I tried following on command line

$ ipython -m pydoc -- 'datetime.datetime.now'
$ ipython -m pydoc datetime.datetime.now

which produced same Help on unicode object: instead of documentation of now. So it looks like ipython has bug?

Is there any way to fix this with ipython? Or change the interpreter to be python when using helm-pydoc