I'm developing an API using Python which makes server calls using XML. I am debating on whether to use a library (ex. http://wiki.python.org/moin/MiniDom) or if it would be "better" (meaning less overhead and faster) to use string concatenation in order to generate the XML used for each request. Also, the XML I will be generating is going to be quite dynamic so I'm not sure if something that allows me to manage elements dynamically will be a benefit.
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