does not work with Pint 0.8

[Angus Yeh]

cannot import DimensionalityError

Was working with Pint 0.7.2, maybe check Pint issue?

can isntall older version for now

pip uninstall pint
pip install -Iv Pint==0.7.2

[Angus Yeh]

maybe change

from pint.unit import DimensionalityError

to

from pint.errors import DimensionalityError

[Angus Yeh]

Fix issue #83 of not working with Pint 0.8.

→ <<cset 8ad3b4e96726>>

[Angus Yeh]

Fix issue #83 of not working with Pint 0.8.

→ <<cset 8ad3b4e96726>>