Trouble installing pyrealsense from source

[scaldara55]

Required Info
Camera Model	R200
Firmware Version	1.0.72.06
Operating System & Version	macOS Sierra Version 10.12.4 (16E195)
librealsense version	1.12.1
pyrealsense version	1.4

I'm trying to install pyrealsense from source. I run python setup.py install and that works fine.

Using /Users/scaldara/.virtualenvs/pyrs2.7-steve/lib/python2.7/site-packages
Finished processing dependencies for pyrealsense==1.4

I then start up python and do an import pyrealsense as pyrs

It comes up with this error.

(pyrs2.7-steve) 7831c1c083a2:pyrealsense scaldara$ python
Python 2.7.13 (default, Dec 18 2016, 07:03:39)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

import pyrealsense as pyrs
Traceback (most recent call last):
File "", line 1, in
File "pyrealsense/init.py", line 11, in
from .utils import pp, _check_error
File "pyrealsense/utils.py", line 7, in
from .importlib import lrs
File "pyrealsense/importlib.py", line 25, in
rsutilwrapper = ctypes.CDLL(_find_extension_name())
File "pyrealsense/importlib.py", line 23, in _find_extension_name
return os.path.join(dirname, f_name)
UnboundLocalError: local variable 'f_name' referenced before assignment

With a little bit of poking around the failure. It's looking for a filename that ends in ".so" and the directory that it is looking in is "pyrealsense"

[scaldara55]

I searched around and found: #10

In it, toinsson said:
"You should import the library outside of the source directory, otherwise you won't see the compiled file."

This was the cause of my problem.