pySerial 
Overview
This module encapsulates the access for the serial port. It provides backends for Python running on Windows, OSX, Linux, BSD (possibly any POSIX compliant system) and IronPython. The module named "serial" automatically selects the appropriate backend.
- Project Homepage: https://github.com/pyserial/pyserial
- Download Page: https://pypi.python.org/pypi/pyserial
BSD license, (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
Documentation
For API documentation, usage and examples see files in the "documentation" directory. The ".rst" files can be read in any text editor or being converted to HTML or PDF using Sphinx. A HTML version is online at https://pythonhosted.org/pyserial/
Examples
Examples and unit tests are in the directory examples.
Installation
pip install pyserial should work for most users.
Detailed information can be found in documentation/pyserial.rst.
The usual setup.py for Python libraries is used for the source distribution. Windows installers are also available (see download link above).