I have a FTP connection from which I am downloading many files and processing them in between. I'd like to be able to check that my FTP connection hasn't timed out in between. So the code looks something like:

conn = FTP(host='blah')
conn.connect()
for item in list_of_items:
    myfile = open('filename', 'w')
    conn.retrbinary('stuff", myfile)
    ### do some parsing ###

How can I check my FTP connection in case it timed out during the ### do some parsing ### line?

python ftplib
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