diff -uNr irrtree-1.2.1.ORIG/irrtree/cli.py irrtree-1.2.1/irrtree/cli.py
--- irrtree-1.2.1.ORIG/irrtree/cli.py	2019-02-01 15:49:05.583138394 +0000
+++ irrtree-1.2.1/irrtree/cli.py	2019-02-01 15:49:18.405138927 +0000
@@ -26,7 +26,7 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 from collections import OrderedDict as OD
-from queue import Queue
+from Queue import Queue
 
 import asciitree
 import getopt