Failure with empty vCard entry in file

[kkrugler]

When processing a large file (> 2000 entries), I got this error:

Traceback (most recent call last):
  File "vcardtools.py", line 281, in <module>
    main()
  File "vcardtools.py", line 214, in main
    args.no_remove_name_in_email \
  File "/Users/kenkrugler/git/vcardtools/vcardlib.py", line 810, in get_vcards_from_files
    selected_name = select_most_relevant_name(available_names)
  File "/Users/kenkrugler/git/vcardtools/vcardlib.py", line 374, in select_most_relevant_name
    raise ValueError("Trying to select a name from an empty list of names")
ValueError: Trying to select a name from an empty list of names

I added some debugging logging (would be useful to dump out card and count when an exception happens), and the vCard entry was <VCARD| [<VERSION{}3.0>, <PRODID{}-//Apple Inc.//macOS 11.2.3//EN>, <N{} >]>

I grepped the input file, and found it was this entry:

BEGIN:VCARD
VERSION:3.0
PRODID:-//Apple Inc.//macOS 11.2.3//EN
N:;;;;
END:VCARD

After removing it from the file, the code ran to completion.