list indices must be integers or slices, not str python3.6
Your problem is with the lines:
host_tags = instance.tagsprint(host_tags['Key']['email']['Value'])Rewrite it like this:
host_tags = instance.tagsfor tag in host_tags: print('Key: ' + tag['Key'] + ' Value: ' + tag['Value'])instance.tags is an array of dict. You need to process each item (tag) in the array. Then you need to process the dict extracting its key / value pairs.