AttributeError: 'HTMLParser' object has no attribute 'unescape'

[FrankWorldview]

Subject of the issue

Output directory: Downloaded
Traceback (most recent call last):
File "D:\edx-dl\edx-dl.py", line 8, in
edx_dl.main()
File "D:\edx-dl\edx_dl\edx_dl.py", line 1261, in main
download(args, selections, all_units, headers)
File "D:\edx-dl\edx_dl\edx_dl.py", line 993, in download
course_name = directory_name(selected_course.name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\edx-dl\edx_dl\utils.py", line 52, in directory_name
result = clean_filename(initial_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\edx-dl\edx_dl\utils.py", line 126, in clean_filename
s = h.unescape(s)
^^^^^^^^^^
AttributeError: 'HTMLParser' object has no attribute 'unescape'

[csyezheng]

Fixed: Fix HTMLParser.unescape error in Python 3.9 and above

[FrankWorldview]

Thank you very much. The script can run now.

However, in the "Downloaded" folder, I can only see many subfolders that are empty. There are no html files downloaded. Is this normal?

[csyezheng]

Sorry for taking so long to reply.
Added support for downloading html files when the unit type is html, problem, discussion, survey, etc.