Merge pull request #31 from olebole/remove-astropy-dependency

Remove astropy dependency

Author: pllim

setup.cfg

@@ -32,6 +32,9 @@ setup_requires =
 install_requires =
     pytest>=4.6
     numpy
+
+[options.extras_require]
+test =
     astropy
 
 [options.entry_points]

tox.ini

@@ -19,7 +19,8 @@ deps =
     pytest61: pytest==6.1.*
     pytest62: pytest==6.2.*
     pytestdev: git+https://github.com/pytest-dev/pytest#egg=pytest
-
+extras =
+    test
 commands =
     pip freeze
     pytest {toxinidir}/tests {posargs}