Autodetect encoding from CSV files

We are using rows in https://github.com/interlegis/interlegis.portalmodelo.transparency to import generic CSV files that users upload, but sometimes the tools used to generate the CSV are not pattern like and generates data with alien encondings, like MS Excel. We need to autodetec the encoding used in the files maybe using some lib as 'chardet' or the 'file' Linux command.