From 2aae37abcd4cca9e6d8a17189ed7207ef19df0e7 Mon Sep 17 00:00:00 2001
From: Marc van Dijk <marcvdijk@gmail.com>
Date: Wed, 18 Dec 2019 14:59:23 +0100
Subject: [PATCH] Fix python 3 dict key iteration

---
 mdstudio_workflow/workflow_common.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mdstudio_workflow/workflow_common.py b/mdstudio_workflow/workflow_common.py
index 729c526..31f0a7d 100644
--- a/mdstudio_workflow/workflow_common.py
+++ b/mdstudio_workflow/workflow_common.py
@@ -148,8 +148,9 @@ def collect_data(output, task_dir):
     graph = read_pydata(output, level=1)
     for node in graph.nodes.values():
 
-        for key, value in node.items():
+        for key in list(node.keys()):
 
+            value = node[key]
             if isinstance(value, PY_STRING) or is_file(value):
 
                 # Serialized file