GSM modem module for Python

python-gsmmodem is a module that allows easy control of a GSM modem attached to the system. It also includes a couple of useful commandline utilities for interacting with a GSM modem.

Its features include:

• simple methods for sending SMS messages, checking signal level, etc
• easy-to-use API for starting and responding to USSD sessions and making voice calls
• handling incoming phone calls and received SMS messages via callback methods
• support for SMS PDU and text mode
• support for tracking SMS status reports
• wraps AT command errors into Python exceptions by default
• modular design; you easily issue your own AT commands to the modem (with error checking), or read/write directly from/to the modem if you prefer
• comprehensive test suite

Bundled utilities:

• GSMTerm: an easy-to-use serial terminal for communicating with an attached GSM modem. It features command completion, built-in help for many AT commands, history, context-aware prompt, etc.
• sendsms.py: a simple command line script to send SMS messages
• identify-modem.py: simple utility to identify attached modem. Can also be used to provide debug information used for development of python-gsmmodem.

Go to examples/ directory in this repo.

• Python 3.3 or later
• pySerial

There are multiple ways to install python-gsmmodem-new package:

pip install python-gsmmodem-new

pip will automatically download and install all dependencies, as required. You can also utilise easy_install in the same manner as using pip above.

If you are utilising python-gsmmodem-new as part of another project, add it to your install_requires section of your setup.py file and upon your project's installation, it will be pulled in automatically.

Download a python-gsmmodem-new archive from PyPI, extract it and install the package with command:

python setup.py install

Note that python-gsmmodem-new package relies on pySerial for serial communications: https://github.com/pyserial/pyserial

Clone from GitHub:

git clone https://github.com/babca/python-gsmmodem.git
cd python-gsmmodem/
python setup.py install

Note that python-gsmmodem-new package relies on pySerial for serial communications: https://github.com/pyserial/pyserial

To run all unit tests, do:

python setup.py test

Unit test code coverage information may be generated by using coverage. You can execute it directly from setup.py by doing:

python setup.py coverage

This will run all unit tests and report on code coverage statistics.

This package contains Sphinx-based documentation. To manually build or test the documentation locally, do the following:

git clone https://github.com/babca/python-gsmmodem.git
cd python-gsmmodem
pip install .[doc]
cd doc
make html

For true isolation, you may wish to run the above commands within a virtualenv, which will help you manage this development installation.

Copyright (C) 2013 Francois Aucamp See AUTHORS for all authors and contact information.

License: GNU Lesser General Public License, version 3 or later; see COPYING

included in this archive for details.

You can simply list all ttyUSB devices before and after pluging the modem in.

ls /dev/ttyUSB*

Check running processes. The device could be occupied by another program or another instance of gsmmodem which is still running in the background. Run sudo lsof | grep tty, try to locate the problematic process and sudo kill <PID>.