Proton Python install shenanigans

Hey all,
I've been tearing my hair out a bit trying to figure why I can't see the
relevant Python modules.

I build Proton on a clean Linux Mint 17 system (which is based on Ubuntu
14.04)

make all builds successfully and sudo make install installs the following:

fadams [ at ] zappa /usr/local/lib/proton/bindings/python $ ls -al
total 2120
drwxr-xr-x 2 root root 4096 Nov 30 12:28 .
drwxr-xr-x 5 root root 4096 Nov 30 12:20 ..
-rw-r--r-- 1 root root 89278 Nov 30 11:29 cproton.py
-rw-r--r-- 1 root root 103293 Nov 30 12:28 cproton.pyc
-rw-r--r-- 1 root root 103293 Nov 30 12:28 cproton.pyo
-rw-r--r-- 1 root root 1445471 Nov 30 12:20 _cproton.so
-rw-r--r-- 1 root root 109162 Nov 30 11:20 __init__.py
-rw-r--r-- 1 root root 151464 Nov 30 12:28 __init__.pyc
-rw-r--r-- 1 root root 151257 Nov 30 12:28 __init__.pyo

I set PYTHONPATH=/usr/local/lib/proton/bindings/python

but when I try
./msgr-recv.py

I get

Traceback (most recent call last):
File "./msgr-recv.py", line 23, in <module>
from proton import *
ImportError: No module named proton

Now I'm thinking that make install hasn't pulled all of the necessary
files into /usr/local/lib/proton/bindings/python the reason I'm thinking
that is when I tried running
source config.sh

I noticed that the PYTHONPATH it created looked like

PYTHONPATH=/home/fadams/qpid/git/qpid-proton/tests/python:/home/fadams/qpid/git/qpid-proton/proton-c/bindings/python:/home/fadams/qpid/git/qpid-proton/build/proton-c/bindings/python

and this *does* appear to work, the significant bit seems to be the
/home/fadams/qpid/git/qpid-proton/proton-c/bindings/python bit, because
when I tried:

PYTHONPATH=/home/fadams/qpid/git/qpid-proton/proton-c/bindings/python:/usr/local/lib/proton/bindings/python

that worked too.

So I'm thinking that the directory proton and its contents in
qpid-proton/proton-c/bindings/python need to be copied to

/usr/local/lib/proton/bindings/python

as part of the make install process too.

Does that seem about right?

Cheers,
Frase