Merge pull request #230 from zacharyburnett/patch-1

remove unsupported `system_packages` RTD config setting

.github/workflows/ci_workflows.yml

@@ -95,8 +95,9 @@ jobs:
     - name: Install and build
       run: |
         python -m pip install --upgrade pip setuptools wheel
-        python -m pip install git+https://github.com/astropy/astropy.git@main#egg=astropy
-        python -m pip install git+https://github.com/ejeschke/ginga.git@master#egg=ginga
+        python -m pip install -U numpy pyerfa astropy-iers-data PyYAML packaging
+        python -m pip install -U -i https://pypi.anaconda.org/astropy/simple astropy --pre
+        python -m pip install git+https://github.com/ejeschke/ginga.git@main#egg=ginga
         python -m pip install -e .[test]
     - name: Test with dev deps
       run: pytest

.readthedocs.yaml

@@ -16,7 +16,6 @@ sphinx:
 
 # Set the version of Python and requirements required to build your docs
 python:
-  system_packages: false
   install:
     - method: pip
       path: .

setup.cfg

@@ -37,6 +37,7 @@ zip_safe = False
 setup_requires =
     setuptools_scm
 install_requires =
+    numpy
     astropy>=3
     ginga>=2.7
     scipy>=0.18
@@ -46,11 +47,7 @@ python_requires = >=3.7
 test =
     pytest-astropy
 docs =
-    numpy
-    scipy
     sphinx-astropy
-    astropy
-    ginga
 
 [options.package_data]
 stginga = data/*, examples/*/*