ERROR: Package 'magnum' requires a different Python: 2.7.17 not in '>=3.6'                   

ERROR: Package 'senlin' requires a different Python: 2.7.17 not in '>=3.6'                                                              

ERROR: Package 'ironic' requires a different Python: 2.7.17 not in '>=3.6'        

ERROR: Package 'openstack-heat' requires a different Python: 2.7.17 not in '>=3.6'

ERROR: Package 'keystone' requires a different Python: 2.7.17 not in '>=3.6'                                                                 

ERROR: Package 'glance' requires a different Python: 2.7.17 not in '>=3.6'   

ERROR: Package 'neutron' requires a different Python: 2.7.17 not in '>=3.6'     

ERROR: Package 'cinder' requires a different Python: 2.7.17 not in '>=3.6'      

ERROR: Could not find a version that satisfies the requirement scandir; python_version < "3.5" (from pathlib2===2.3.5->-c /tmp/wheels/upper-constraints.txt (line 509)) (from versions: none)
ERROR: No matching distribution found for scandir; python_version < "3.5" (from pathlib2===2.3.5->-c /tmp/wheels/upper-constraints.txt (line 509))

ERROR: Package 'nova' requires a different Python: 2.7.17 not in '>=3.6'