ValueError: Name node can't be used with 'None' constant

[Nick6]

Beets crashes with the following error message

Problem

Running this command in verbose (-vv) mode:

D:\Scripts>beet -vv
no user configuration found at C:\Users\Nick\AppData\Roaming\beets\config.yaml
data directory: C:\Users\Nick\AppData\Roaming\beets
plugin paths:
Sending event: pluginload
Traceback (most recent call last):
File "C:\Users\Nick\AppData\Roaming\Python\Python38\Scripts\beet-script.py", line 11, in
load_entry_point('beets==1.4.9', 'console_scripts', 'beet')()
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\ui_init_.py", line 1266, in main
raw_main(args)
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\ui_init.py", line 1249, in _raw_main
subcommands, plugins, lib = setup(options, lib)
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\ui_init.py", line 1144, in _setup
lib = open_library(config)
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\ui_init.py", line 1201, in open_library
get_path_formats(),
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\ui_init.py", line 619, in get_path_formats
path_formats.append((query, template(view.as_str())))
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\util\functemplate.py", line 571, in template
return Template(fmt)
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\util\functemplate.py", line 581, in init
self.compiled = self.translate()
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\util\functemplate.py", line 614, in translate
func = compile_func(
File "C:\Users\Nick\AppData\Roaming\Python\Python38\site-packages\beets\util\functemplate.py", line 155, in compile_func
prog = compile(mod, '', 'exec')
ValueError: Name node can't be used with 'None' constant
Led to this problem:

ValueError: Name node can't be used with 'None' constant

Here's a link to the music files that trigger the bug (if relevant):

Setup

• OS: Windows 10
• Python version: Python 3.8.5
• beets version: Latest
• Turning off plugins made problem go away (yes/no): No

[sampsyo]

Please see #3674.