Yes, I would like to make a python script that would : 
- connect to an ftp server
- list all files inside the server
- compare last edit date of remote files with all files in a similar directory locally
- download all files that have been modified more recently than the local copies
- have an option to create a complete backup of all files inside the given remote directory, to a folder on the local computer

Please explain the code as you do it, in comments.
Please try to make it as modulable as possible, using many functions that are called inside the main script
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