Export to EDF using pyEDFLib

Problem Right now it is only possible to export data using FIF, which is not a very useful and widely used file format. I do remember seing an issue about integration of some EDF library, but at this point I can’t find it again.

Suggestion I’d like to make a first, basic addition to integrate pyEDFlib for writing EDF+ files to disk. I’m using this library since some time and have good experience with it.

However I have a few questions regarding the approach:

• Would it be okay to use an external library for saving EDF instead of re-inventing the wheel?
• Where should I insert the code? I thought to extend BaseRaw with a function save_edf(), however it would also be possible to alter .save() to accept different file types
• in the basic version, this would save channels (and annotations?) only as raw as they are. I have no experience with all the Evoked, Epoched, etc. and if we could save them appropriately via EDF.

Alternatives Write a native EDF-writer, which at this point I do not have the time for.

edit: I’ve created a gist as requested here: https://gist.github.com/skjerns/bc660ef59dca0dbd53f00ed38c42f6be