PIP 517 issues

[espenfl]

Just got this when we played with some Ansible tests:

fatal: [instance]: FAILED! => {"changed": false, "cmd": ["/root/.virtualenvs/aiida/bin/pip3", "install", "aiida-quantumespresso"], "msg": "stdout: Collecting aiida-quantumespresso\n  Downloading https://files.pythonhosted.org/packages/46/a5/ef8548bc265e2efbb2b908a859798c58e15082ad63ad10485c11e95552c6/aiida_quantumespresso-2.1.0.tar.gz (171kB)\nCollecting aiida_core[atomic_tools]<1.0.0,>=0.12.0 (from aiida-quantumespresso)\n  Downloading https://files.pythonhosted.org/packages/8e/50/5ef0bf7094a16255572c5a161c67ad1b999599e7e2ea675dea8e0eb2c2aa/aiida-core-0.12.4.tar.gz (2.0MB)\n  Installing build dependencies: started\n  Installing build dependencies: finished with status 'done'\n  Getting requirements to build wheel: started\n  Getting requirements to build wheel: finished with status 'error'\n  Complete output from command /root/.virtualenvs/aiida/bin/python3 /root/.virtualenvs/aiida/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpc2byihcl:\n  Traceback (most recent call last):\n    File \"/root/.virtualenvs/aiida/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py\", line 207, in <module>\n      main()\n    File \"/root/.virtualenvs/aiida/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py\", line 197, in main\n      json_out['return_val'] = hook(**hook_input['kwargs'])\n    File \"/root/.virtualenvs/aiida/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py\", line 48, in get_requires_for_build_wheel\n      backend = _build_backend()\n    File \"/root/.virtualenvs/aiida/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py\", line 39, in _build_backend\n      obj = getattr(obj, path_part)\n  AttributeError: module 'setuptools.build_meta' has no attribute '__legacy__'\n  \n  ----------------------------------------\n\n:stderr: Command \"/root/.virtualenvs/aiida/bin/python3 /root/.virtualenvs/aiida/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpc2byihcl\" failed with error code 1 in /tmp/pip-install-cvsxaj8b/aiida-core\nYou are using pip version 19.0.3, however version 19.3.1 is available.\nYou should consider upgrading via the 'pip install --upgrade pip' command.\n"}

Check here: pypa/setuptools#1694 (comment)
And the commit to AiiDA core: marvel-nccr/ansible-role-aiida@314e585#diff-248f43bd9f5aeddecb70d683c9f7c832

[sphuber]

This is because aiida-quantumespresso==2.1 is not python 3 compatible. Use 3.0.0a5 for a python 3 compatible version

[espenfl]

thanks, will update the ansible stuff, closing.