how to install pygraphviz in MacOS

In pygraphviz installation document, it mentioned the include-path was indicated to xxxx/include/graphviz, but it doesn’t work.

After change it to the parent path (remove graphviz), everything is working fine now.

#sudo python setup.py install --include-path=/Volumes/MacintoshHD/usr/local/Cellar/graphviz/2.40.1/include/ --library-path=/Volumes/MacintoshHD/usr/local/Cellar/graphviz/2.40.1/lib