Merge branch '#16' of https://github.com/LSSTDESC/BlendingToolKit into …

…#16

docs/source/conf.py

@@ -21,6 +21,7 @@
 import os
 import sys
 sys.path.insert(0, os.path.abspath('../..'))
+sys.path.insert(0, os.path.abspath('..'))
 import sphinx_rtd_theme
 
 
@@ -33,6 +34,41 @@
 # The full version, including alpha/beta/rc tags
 release = '0.1'
 
+# on_rtd is whether we are on readthedocs.org, this line of code grabbed from docs.readthedocs.org
+on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
+
+from mock import Mock as MagicMock
+
+class Mock(MagicMock):
+    @classmethod
+    def __getattr__(cls, name):
+        return Mock()
+    def __mul__(self, other):
+        return Mock()
+    def __rmul__(self, other):
+        return Mock()
+    def __pow__(self, other):
+        return Mock()
+    def __div__(self, other):
+        return Mock()
+
+MOCK_MODULES = [
+    'numpy',
+    'numpy.ma',
+    'numpy.linalg',
+    'scipy',
+    'scipy.spatial',
+    'astropy',
+    'astropy.table',
+    'astropy.io',
+    'astropy.io.fits',
+    'fitsio',
+    'galsim',
+    'lmfit',
+    'descwl',
+]
+if on_rtd:
+    sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)
 
 # -- General configuration ---------------------------------------------------