examples/python: avoid Python2 "print" statement

Recent python-black (22.0) dropped support for Python 2 and thus fail
for those files. Make the examples Python3 compatible.

examples/python/gi/get-devices.py

@@ -15,22 +15,28 @@ if __name__ == "__main__":
     client = NM.Client.new(None)
     devices = client.get_all_devices()
 
-    print "Real devices"
-    print "------------"
+    print("Real devices")
+    print("------------")
     for d in devices:
         if d.is_real():
-            print "%s (%s): %s" % (
-                d.get_iface(),
-                d.get_type_description(),
-                d.get_state(),
+            print(
+                "%s (%s): %s"
+                % (
+                    d.get_iface(),
+                    d.get_type_description(),
+                    d.get_state(),
+                )
             )
 
-    print "\nUnrealized/placeholder devices"
-    print "------------------------------"
+    print("\nUnrealized/placeholder devices")
+    print("------------------------------")
     for d in devices:
         if not d.is_real():
-            print "%s (%s): %s" % (
-                d.get_iface(),
-                d.get_type_description(),
-                d.get_state(),
+            print(
+                "%s (%s): %s"
+                % (
+                    d.get_iface(),
+                    d.get_type_description(),
+                    d.get_state(),
+                )
             )