python shell, arrow keys, and anaconda environment

I've got anaconda running on antergos (arch). If I run python in a shell, the arrow keys work fine. If I source activate any environment, the arrow keys result in ^[[A, etc. I remember having the same problem outside of any environment, and pip install readline got rid of the issue. However, inside a conda environment, the arrow keys are just not working. I tried pip install readline, and easy_install -a readline from within the environment. No joy. Any idea on how to resolve this?

Update (to answer PM 2ring's question)

(tf)  ~  python
Python 3.6.1 |Continuum Analytics, Inc.| (default, Mar 22 2017, 19:54:23) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import readline
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: libncursesw.so.5: cannot open shared object file: No such file or directory
>>> 

It seems related to ncurses versions, etc. It works fine after I ran the following inside the conda environment:

conda install ncurses

Try running:

pip install pyeditline