another rtd try

rtd/source/conf.py

@@ -13,7 +13,7 @@ release = '0.1'
 
 import os
 import sys
-sys.path.insert(0, os.path.abspath('../../sen2chain'))
+sys.path.insert(0, os.path.abspath('../..'))
 # math
 from sphinx_math_dollar import NODE_BLACKLIST
 from docutils.nodes import header,FixedTextElement, literal,math