on macOS we see the following error:
ImportError: Failed to import test module: test.test_plyvel
Traceback (most recent call last):
File "/nix/store/0mha803yql9q7b6h93m8940z3sjbhiy8-python3-3.6.6/lib/python3.6/unittest/loader.py", line 428, in _find_test_path
module = self._get_module_from_name(name)
File "/nix/store/0mha803yql9q7b6h93m8940z3sjbhiy8-python3-3.6.6/lib/python3.6/unittest/loader.py", line 369, in _get_module_from_name
__import__(name)
File "/private/tmp/nix-build-python3.6-plyvel-1.0.5.drv-0/plyvel-1.0.5/test/test_plyvel.py", line 17, in <module>
import plyvel
File "/private/tmp/nix-build-python3.6-plyvel-1.0.5.drv-0/plyvel-1.0.5/plyvel/__init__.py", line 6, in <module>
from ._plyvel import ( # noqa
ImportError: dlopen(/private/tmp/nix-build-python3.6-plyvel-1.0.5.drv-0/plyvel-1.0.5/plyvel/_plyvel.cpython-36m-darwin.so, 2): Library not loaded: /nix/store/rq39v3s1l6vc85wwmrxsmlpi4rnbjnx6-leveldb-1.20/lib/out-shared/libleveldb.dylib.1.20
Referenced from: /private/tmp/nix-build-python3.6-plyvel-1.0.5.drv-0/plyvel-1.0.5/plyvel/_plyvel.cpython-36m-darwin.so
Reason: image not found
