cannot import name 'adjacency'

[lforrrrawx]

Hi. I run the code, I got this error:
ImportError: cannot import name 'adjacency'

then I changed code "from pkg.poly_operations.others import adjacency" to "from pkg.poly_operations.others import adjacency_edges as adjacency" and run again, I got error:
ImportError: No module named 'py2d'

I run "sudo pip install py2d" and install 'py2d', run again, got error...

How can I solve this? Thank you.

[sbochkar]

I had quite a few problems with installing Py2D with pip.

I got it to work on my personal machine by installing from source.
http://sseemayer.github.io/Py2D/download.html