converting dictionary compatible to python3

Author: hrani

python/moose/chemUtil/chemConnectUtil.py

@@ -25,7 +25,7 @@
 colormap_file.close()
 ignoreColor= ["mistyrose","antiquewhite","aliceblue","azure","bisque","black","blanchedalmond","blue","cornsilk","darkolivegreen","darkslategray","dimgray","floralwhite","gainsboro","ghostwhite","honeydew","ivory","lavender","lavenderblush","lemonchiffon","lightcyan","lightgoldenrodyellow","lightgray","lightyellow","linen","mediumblue","mintcream","navy","oldlace","papayawhip","saddlebrown","seashell","snow","wheat","white","whitesmoke","aquamarine","lightsalmon","moccasin","limegreen","snow","sienna","beige","dimgrey","lightsage"]
 matplotcolor = {}
-for name,hexno in matplotlib.colors.cnames.iteritems():
+for name,hexno in matplotlib.colors.cnames.items():
     matplotcolor[name]=hexno
 
 def getRandColor():