Python wrapper for Telldus' home automation library

pip install tellcore-py==1.1.3


Python wrapper for Telldus Core

tellcore-py is a Python wrapper for Telldus' home automation library Telldus Core.

Please report any problem as a GitHub issue report.


  • Wraps the C-interface with a python interface (with classes and exceptions).
  • Automatically frees memory for returned strings.
  • Throws an exception (TelldusError) in case a library function returns an error.
  • Supports python 3 with automatic handling of strings (i.e. converting between bytes used by the C-library and strings as used by python).
  • Takes care of making callbacks from the library thread-safe.
  • Unit tested.
  • Besides being useful with the regular Python implementation (a.k.a. CPython), it also works with pypy.
  • Open source (GPLv3+).
  • Works on Linux, Mac OS X and Windows.



$ pip install tellcore-py

Can also be installed by cloning the GIP repository or downloading the ZIP archive from GitHub and unpacking it. Then change directory to tellcore-py and run:

$ python install


  • Home Assistant - Open-source home automation platform running on Python 3
  • Tellprox - A local server to use in place of Telldus Live
  • tellive-py - A Python wrapper for Telldus Live


A simple example for adding a new "lamp" device, turning it on and then turning all devices off.

from tellcore.telldus import TelldusCore

core = TelldusCore()
lamp = core.add_device("lamp", "arctech", "selflearning-switch", house=12345, unit=1)

for device in core.devices():

More examples can be found in the bin directory.


At the bottom there is the Library class which is a ctypes wrapper and closely matches the API of the underlying Telldus Core library. The library class takes care of freeing memory returned from the base library and converts errors returned to TelldusException. The library class is not intended to be used directly.

Instead, the TelldusCore class provides a more python-ish API on top of the library class. This class is used for e.g. adding new devices, or enumerating the existing devices, sensors and/or controllers. E.g. calling the devices() method returns a list of Device instances. The Device class in turn has methods for turning the device on, off, etc.