I'm writing a python script to process some old archives that include many .rar files. I can successfully extract data from them using Archive.extractall from pyunpack, but haven't been able to find much documentation. The documentation link at https://pypi.org/project/pyunpack/0.1.2/ is broken. Everything was going well until the program hung on a specific .rar file. I looked at the file with 7zip, and it said it was password protected. I have no idea what the password is, so I would like the script to simply skip it. I already have extractall in a try block, but I guess there is no exception. How can I test if the file is password protected and not try to extract it if so? Here's the relevant portion of my code.

import os
import rarfile
from pyunpack import Archive

for subdir,dirs,files in os.walk(directoryToExtract):
        for file in files:
            if rarfile.is_rarfile(os.path.join(subdir, file)):
                print("Found rarfile " + os.path.join(subdir, file))
                try:                    
                    Archive(os.path.join(subdir, file)).extractall(os.path.join(subdir, file[0:len(file)-4]),auto_create_dir=True)
                except Exception as e:
                    print("ERROR: Couldn't unrar " + os.path.join(subdir, file))
                    print(str(e))