src/ezpadova/__init__.py:1:21: F401 `.parsec.get_Z_isochrones` imported but unused; consider removing, adding to `__all__`, or using a redundant alias

src/ezpadova/__init__.py:1:39: F401 `.parsec.get_one_isochrone` imported but unused; consider removing, adding to `__all__`, or using a redundant alias

src/ezpadova/__init__.py:1:58: F401 `.parsec.get_t_isochrones` imported but unused; consider removing, adding to `__all__`, or using a redundant alias

src/ezpadova/__init__.py:2:15: F401 `.parsec` imported but unused; consider removing, adding to `__all__`, or using a redundant alias

src/ezpadova/parsec.py:228:8: F821 Undefined name `py3k`