libtmux : send tmux commands

[jjournet]

Hello,

Perhaps I missed the point in the documentation, or it is something obvious, but here is my use case:
I have a script (Python with libtmux) creating a session and 2 windows, with 2 panes in the second window. In these 2 panes I'm connecting through SSH to 2 different servers.

All that is working fine (and by the way, libtmux is great to do that), but I want to send a command 'set synchronize-panes on' in the 2nd window to synchronize the 2 panes (I want to send the same commands to both servers)
... and I don't know how to do that

I found this issue, which explains how to send C-b via send_keys, but is it the 'tmuxlib' way ? is there a dedicated function to send tmux commands?

thanks
EDIT1: solution in issue linked is not working for me

[tony]

Do you have a code example or minimal reproducible case you've tried? (perhaps to begin: Just use a simple tmux setup locally?)

tmuxp shell

Interestingly, pane.send_keys('C-c', enter=False, suppress_history=False) works

Also this worked: pane.cmd('send-keys', 'C-c')

I tested by having vim in INSERT mode, then sending C-c to the pane:

libtmux.Server().sessions[1].attached_window.panes[0].send_keys('C-c', enter=False, suppress_history=False)

Then I went back into insert mode:

libtmux.Server().sessions[1].attached_window.panes[0].send_keys('C-c', enter=False, suppress_history=False)

Do you have nested tmux sessions? You may need to escape twice