Py 3 doesn't have Queue module, use multiprocessing.queue instead

Author: kapilkd13

cwltool/sandboxjs.py

@@ -6,7 +6,7 @@
 import select
 import subprocess
 import threading
-import Queue
+from multiprocessing import Queue
 import sys
 from io import BytesIO
 from typing import Any, Dict, List, Mapping, Text, Tuple, Union
@@ -155,9 +155,9 @@ def term():
         READ_BYTES_SIZE = 512
 
         # creating queue for reading from a thread to queue
-        input_queue = Queue.Queue()
-        output_queue = Queue.Queue()
-        error_queue = Queue.Queue()
+        input_queue = Queue()
+        output_queue = Queue()
+        error_queue = Queue()
 
         # To tell threads that output has ended and threads can safely exit
         no_more_output = threading.Lock()