workaround rtfd issues

Author: alimanfoo

docs/conf.py

@@ -13,8 +13,28 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
+
 import sys
 import os
+from mock import Mock as MagicMock
+
+
+PY2 = sys.version_info[0] == 2
+
+
+class Mock(MagicMock):
+    @classmethod
+    def __getattr__(cls, name):
+        return Mock()
+
+
+MOCK_MODULES = []
+if PY2:
+    MOCK_MODULES.append('lzma')
+
+
+sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)
+                        
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -33,7 +53,6 @@
 extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.autosummary',
-    'sphinx.ext.intersphinx',
     'sphinx.ext.viewcode',
     'numpydoc',
 ]

tox.ini

@@ -20,7 +20,7 @@ deps =
     -rrequirements.txt
 
 [testenv:docs]
-basepython = python3.5
+basepython = python2.7
 changedir = docs
 deps =
     -rrequirements_rtfd.txt