error: invalid rate limit specified after python update

[seahorse41]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.01.24
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

$ youtube-dl -version
[debug] System config: []
[debug] User config: [u'--restrict-filenames', u'-o', u'~/Downloads/%(title)s.%(uploader)s.%(id)s.%(format_id)s-%(height)sp.%(ext)s']
[debug] Custom config: []
[debug] Command-line args: [u'-version']
Usage: youtube-dl [OPTIONS] URL [URL...]

youtube-dl: error: invalid rate limit specified

Description

youtube-dl was working this morning fine, My debian 8 system popped up a notification that OS Upgrades are available, I reviewed it included python-apt and closed that window.
Half an hour later youtube-dl stopped with errors.
/var/log/unattended-upgrades says:
2020-02-01 06:32:18,366 INFO Packages that will be upgraded: firefox-esr python-apt python-apt-common python3-apt

$ python --version
Python 2.7.13
$ python3 --version
Python 3.5.3

[dstftw]

--version not -version.