This is a ctypes based python wrapper for snap7. Snap7 is an open source, 32/64 bit, multi-platform Ethernet communication suite for interfacing natively with Siemens S7 PLCs.

Python-snap7 is tested with Python 3.6+, on Windows, Linux and OS X.

The full documentation is available on Read The Docs.

Please read the online installation documentation.

• Gijs Molenaar (gijs at pythonic dot nl)
• Stephan Preeker (stephan at preeker dot net)

Both authors are available for contracting to improve python-snap7. Please contact us at the email address above for inquiries.

• Davide Nardella for creating snap7
• Thomas Hergenhahn for his libnodave.
• Thomas W for his S7comm wireshark plugin
• Fabian Beitler and Nikteliy for their contributions towards the 1.0 release