##How to install and possible bugs ####Install method 1
$ sudo pip install opticspy
####Install method 2 ####Download opticspy source file from https://pypi.python.org/pypi/opticspy then
$ python2.7 setup.py install
####Possible bug when installing or later import: ####1. Error when import unwrap ####Opticspy use an unwrap module for unwraping phase. It works well.
- ####You may get following error: [Errno 2] No such file or directory: '/Library/Python/2.7/site-packages/unwrap/__pycache__/_cffi__x8956f820xc1fce120.c'
- ####Solution: create a "_pycache_" folder in your python package directory"/Library/Python/2.7/site-packages/unwrap/"