Now trying a hack recommended by Jiawei Zhuang used in xesmf

readthedocs/readthedocs.org#5512 (comment)

Signed-off-by: Lizzie Lundgren <elundgren@seas.harvard.edu>

docs/requirements.txt

@@ -1,21 +1,4 @@
 numpydoc
 ipython
 nbsphinx
-xarray
-xbpch
-dask
 git+https://github.com/geoschem/gcpy
-bottleneck
-cartopy
-cython
-dask
-esmpy
-future
-matplotlib
-netcdf4
-numpy
-six
-xarray
-sphinx
-proj
-GEOS

readthedocs.yml

@@ -1,4 +1,4 @@
 python:
     version: 3.6
 
-requirements_file: docs/environment.yml
+requirements_file: docs/requirements.txt

setup.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+cd #!/usr/bin/env python
 
 import os
 import warnings
@@ -18,6 +18,14 @@
 URL = "http://gcpy.readthedocs.io/en/latest/"
 LICENSE = "MIT"
 
+# based on solution at https://github.com/rtfd/readthedocs.org/issues/5512#issuecomment-475024373                                                                 
+on_rtd = os.environ.get('READTHEDOCS') == 'True'
+if on_rtd:
+    INSTALL_REQUIRES = []
+else:
+    INSTALL_REQUIRES = ['esmpy', 'xarray', 'numpy', 'scipy']
+
+
 CLASSIFIERS = [
     'Development Status :: 4 - Beta',
     'License :: OSI Approved :: MIT License',
@@ -36,7 +44,6 @@
 VERSION = "{}.{}.{}".format(MAJOR, MINOR, MICRO)
 DEV = True
 
-
 # Correct versioning with git info if DEV
 if DEV:
     import subprocess
@@ -88,4 +95,4 @@ def _write_version_file():
     package_data = {},
 
     classifiers = CLASSIFIERS
-)
+)