Index: Twisted-22.10.0/src/twisted/internet/gireactor.py
===================================================================
--- Twisted-22.10.0.orig/src/twisted/internet/gireactor.py
+++ Twisted-22.10.0/src/twisted/internet/gireactor.py
@@ -21,20 +21,24 @@ On Python 3, pygobject v3.4 or later is
 """
 
 
-import gi.pygtkcompat  # type: ignore[import]
 from gi.repository import GLib  # type: ignore[import]
 
 from twisted.internet import _glibbase
 from twisted.internet.error import ReactorAlreadyRunning
 from twisted.python import runtime
 
-# We require a sufficiently new version of pygobject, so always exists:
-_pygtkcompatPresent = True
+try:
+    import gi.pygtkcompat # type: ignore[import]
+except ImportError:
+    pass # This is probably Python 3, with pygtkcompat removed
+else:
+    # We require a sufficiently new version of pygobject, so always exists:
+    _pygtkcompatPresent = True
 
-# Newer version of gi, so we can try to initialize compatibility layer; if
-# real pygtk was already imported we'll get ImportError at this point
-# rather than segfault, so unconditional import is fine.
-gi.pygtkcompat.enable()
+    # Newer version of gi, so we can try to initialize compatibility layer; if
+    # real pygtk was already imported we'll get ImportError at this point
+    # rather than segfault, so unconditional import is fine.    
+    gi.pygtkcompat.enable()
 # At this point importing gobject will get you gi version, and importing
 # e.g. gtk will either fail in non-segfaulty way or use gi version if user
 # does gi.pygtkcompat.enable_gtk(). So, no need to prevent imports of