default python preference for packages.yaml #11539
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Spack packages always default to the newest stable release. In the case of |
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Makes sense - thanks for the explanation & pointer to the other issues |
danlipsa
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Jun 7, 2019
Workaround for
adding the following to your packages.yaml
packages:
python:
version: [3, 2]
without this you'll get:
paraview requires python version 3:, but spec asked for 2.7.16
for `spack spec paraview+python`
see spack pull request spack#11539
danlipsa
added a commit
to danlipsa/spack
that referenced
this pull request
Jun 7, 2019
Workaround for
adding the following to your packages.yaml
packages:
python:
version: [3, 2]
without this you'll get:
paraview requires python version 3:, but spec asked for 2.7.16
for `spack spec paraview+python`
see spack pull request spack#11539
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This PR adds a python preference order to default packages.yaml to help with issues relating to python2/3 concretization errors.
This doesn't solve all issues related to the 2/3 difficulty, but I think would make the 'out of the box' experience work more as expected without user customization required, especially for setups like environments and building in containers.
Related to: #11531, #11468, #11396