I think there might be a problem:
On both Linux and windows if I create an environment with


conda create -n test -c cctbx-dev cctbx python=<python version>

I get (with python 3.5, 3.6, 3.7 and 3.8)

UnsatisfiableError: The following specifications were found to be
incompatible with each other:

Output in format: Requested package -> Available versions

Package python conflicts for:
cctbx ->
python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']
python=3.5
cctbx -> biopython -> python[version='>=3.5,<3.6.0a0']




Gianluca Santoni, serial crystallographer

ESRF structural biology group
71 avenue des Martyrs
38027 Grenoble cedex (France)

On 20/03/2020 08:41, Billy Poon wrote:
> conda create -n test -c cctbx-dev cctbx python=<python version>
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