X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/5a4cb7afb56eeeceba5ba7e710e4a7ccc5f9ae36..81693ee04f18e68558c9206705ef589cca2460b0:/sdk/cwl/arvados_cwl/arvworkflow.py

diff --git a/sdk/cwl/arvados_cwl/arvworkflow.py b/sdk/cwl/arvados_cwl/arvworkflow.py
index ea167d4044..8e6bff4f04 100644
--- a/sdk/cwl/arvados_cwl/arvworkflow.py
+++ b/sdk/cwl/arvados_cwl/arvworkflow.py
@@ -2,6 +2,9 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+from past.builtins import basestring
+from future.utils import viewitems
+
 import os
 import json
 import copy
@@ -135,7 +138,7 @@ class ArvadosWorkflowStep(WorkflowStep):
         runtimeContext = runtimeContext.copy()
         runtimeContext.toplevel = True  # Preserve behavior for #13365
 
-        builder = make_builder({shortname(k): v for k,v in joborder.items()}, self.hints, self.requirements, runtimeContext)
+        builder = make_builder({shortname(k): v for k,v in viewitems(joborder)}, self.hints, self.requirements, runtimeContext)
         runtimeContext = set_cluster_target(self.tool, self.arvrunner, builder, runtimeContext)
         return super(ArvadosWorkflowStep, self).job(joborder, output_callback, runtimeContext)