Not compatible with Python 3.7?

[faizahfarzana]

I tried to install with with conda, but get this problems:

UnsatisfiableError: The following specifications were found to be incompatible with the existing python installation in your environment:
Specifications:

• tox-pyenv -> python[version='>=3.6,<3.7.0a0']
  Your python: python=3.7

[stavxyz]

I did not specifically exclude python > 3.6 ...

Is there something I need to do to allow for use with python 3.6/7 ?