Thanks a lot, it looks like a fine script
I'll first though try to correct all the warnings I get from this ePub to Mobi conversion to have a clean Mobi.
Edit : though I have a problem, I cannot send the .azw3 file on my Kindle personal space, it says the format is not recon. Can I safely just change the .azw3 extension to .mobi to send there? And so use this .mobi extension in Calibre too?
Edit 2 : ok I found I just renamed the azw3 to azw and it worked