Update try statement as pointed out by defionscode

cloud/amazon/iam.py

@@ -565,7 +565,10 @@ def main():
     region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module)
 
     try:
-        iam = boto.iam.connect_to_region(region, **aws_connect_kwargs)
+        if region:
+            iam = boto.iam.connect_to_region(region, **aws_connect_kwargs)
+        else:
+            iam = boto.iam.connection.IAMConnection(**aws_connect_kwargs)
     except boto.exception.NoAuthHandlerFound, e:
         module.fail_json(msg=str(e))
 

cloud/amazon/iam_cert.py

@@ -247,7 +247,10 @@ def main():
     region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module)
 
     try:
-        iam = boto.iam.connect_to_region(region, **aws_connect_kwargs)
+        if region:
+            iam = boto.iam.connect_to_region(region, **aws_connect_kwargs)
+        else:
+            iam = boto.iam.connection.IAMConnection(**aws_connect_kwargs)
     except boto.exception.NoAuthHandlerFound, e:
         module.fail_json(msg=str(e))
 

cloud/amazon/iam_policy.py

@@ -307,7 +307,10 @@ def main():
   region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module)
 
   try:
-      iam = boto.iam.connect_to_region(region, **aws_connect_kwargs)
+    if region:
+        iam = boto.iam.connect_to_region(region, **aws_connect_kwargs)
+    else:
+        iam = boto.iam.connection.IAMConnection(**aws_connect_kwargs)
   except boto.exception.NoAuthHandlerFound, e:
       module.fail_json(msg=str(e))