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>