DOC: Avoid deprecated latex_use_parts option.

QuLogic · QuLogic · commit f051405bb8bc · 2016-12-05T01:51:39.000-05:00
This was deprecated in Sphinx 1.4 and causes a warning in 1.5, which
kills the build due to warnings-as-errors.
diff --git a/doc/conf.py b/doc/conf.py
@@ -286,7 +286,10 @@
 # If false, no module index is generated.
 latex_use_modindex = True
 
-latex_use_parts = True
+if hasattr(sphinx, 'version_info') and sphinx.version_info[:2] >= (1, 4):
+    latex_toplevel_sectioning = 'part'
+else:
+    latex_use_parts = True
 
 # Show both class-level docstring and __init__ docstring in class
 # documentation
