Arch Linux

Description: I just upgraded my system today with a complete system upgrade. Terminator is now complaining about dependencies not being installed.

Specifically, I see this when I run `terminator`:
`You need to install the python bindings for gobject, gtk and pango to run Terminator.`

I read the first bit of the Terminator source code and this is the first bit of the Python file that's causing this to throw:
```py
import sys
import os
import psutil
import pwd
try:
ORIGCWD = os.getcwd()
except OSError:
ORIGCWD = os.path.expanduser("~")

# Check we have simple basics like Gtk+ and a valid $DISPLAY
try:
import gi
gi.require_version('Gtk','3.0')
# pylint: disable-msg=W0611
from gi.repository import Gtk, Gdk

if Gdk.Display.get_default() == None:
print('You need to run terminator in an X environment. ' \
'Make sure $DISPLAY is properly set')
sys.exit(1)

except ImportError:
print('You need to install the python bindings for ' \
'gobject, gtk and pango to run Terminator.')
sys.exit(1)

```

It appears that the import to `import gi` is checking for `gi.require_version('Gtk','3.0')` and I now have version 4.0 (as of my most recent `-Syu`). It does _also_ appear that I have GTK version 3 installed, so maybe this is an upstream bug in Terminator?

I'm not sure what the best fix for this is for Arch users. Maybe somehow forcing GTK3 as a dependency for Terminator is possible? Or maybe this is a bug for upstream to Terminator to support GTK 4?

Regardless, it's annoying and that's why I wanted to file this bug report. I'll update this post if I figure out a workaround (besides uninstalled GTK4). Thank you!

Additional info:
* package version(s):
- terminator-2.1.1-2
- python-configobj-5.0.6.r110.g3e2f4cc-1
- gtk4-1:4.4.1-1
- gtk3-1:3.24.30+90+g20be04f7ac-1
- pango-1:1.48.10-1

* config and/or log files etc.
* link to upstream bug report, if any

Steps to reproduce:
- Update your Arch system to latest
- Install `gtk4` and `gtk3`
- Install `terminator`
- Try running `terminator` in a command line. You should see this error:
`You need to install the python bindings for gobject, gtk and pango to run Terminator.`