Can EEM scripts be only written in Tcl?

[Mitrixsen]

Hello, everyone.

I've just started with EEM and my study resource said that you can either configure EEM policies as applets (which are done via the CLI) or by configuring external scripts. It mentioned that these scripts are written in Tcl. Is this the only programming language that EEM scripts support? Would it not be possible to write the scripts in something like Python?

Thank you.
David

[Leo Laohoo · Accepted solution]

Chapter: Writing Embedded Event Manager Policies Using TCL

TCL & EEM Scripts and Guest Shell

Embedded Event Manager Configuration Guide

[MHM Cisco World]

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.ciscolive.com/c/dam/r/ciscolive/global-event/docs/2024/pdf/PODL/BRKATO-2105.pdf&ved=2ahUKEwiO28bk0oSOAxUOAxAIHZsjNs0QFnoECCUQAQ&usg=AOvVaw2DklcH62avs-XGkLq_l4Jh

Check this' you can use python and more other.

MHM

[bigevilbeard · Accepted solution]

Hey @Mitrixsen yes historically tcl has been the default scripting language for eem as its lightweight and integration with Cisco platforms (ios, ex etc)

Cisco eem doesn’t natively have support for python for external scripts in most traditional environments. This is when you can use guestshell to trigger python scripts from eem by using the even manager applet to execute a shell cmd which then runs the python script inside the guestshell.

That said, the ios xe platform includes a embedded python interpreter (python cli command), but it really not the same as full python support in eem.

Hope this helps.