Nmcli-dmenu

Small script to manage NetworkManager connections with dmenu instead of nm-applet

Features

Python 2.7+ or 3.2+
NetworkManager
Dmenu. Basic support is included for Rofi, but most Rofi configuration/theming should be done via Xresources.
(optional) The network-manager-applet package (in order to launch the GUI connection editor, if desired. The nm-applet does _not_ need to be started.)
(optional) Pinentry. Make sure to set which flavor of pinentry command to use in the config file.

If using networkmanager < version 0.9.10 you _must_ checkout the 'networkmanager-0.9.8' branch. Some of the nmcli terminology changed with 0.9.10 and is _not_ compatible with previous versions.
Set your dmenu_command in config.ini if it's not 'dmenu' (for example dmenu_run or rofi). The alternate command should still respect the -l, -p and -i flags.
To customize dmenu appearance, copy config.ini.example to ~/.config/networkmanager-dmenu/config.ini and edit.
Set default terminal (xterm, urxvtc, etc.) command in config.ini if desired.
If using Rofi, you can try some of the command line options in config.ini or set them using the dmenu_command setting, but I haven't tested most of them so I'd suggest configuring via .Xresources where possible.
Copy script somewhere in $PATH
If desired, copy the nmcli_dmenu.desktop to /usr/share/applications or ~/.local/share/applications.
If you want to run the script as $USER instead of ROOT, set PolicyKit permissions. The script is usable for connecting to pre-existing connections without setting these, but you won't be able to enable/disable networking or add new connections.