speedtest-cli: ValueError: invalid literal for int() with base 10: ''

On 3 machines I get: ~~~ $ speedtest-cli Retrieving speedtest.net configuration... Traceback (most recent call last): File "/usr/bin/speedtest-cli", line 11, in load_entry_point('speedtest-cli==2.1.2', 'console_scripts', 'speedtest-cli')() File "/usr/lib/python3/dist-packages/speedtest.py", line 1986, in main shell() File "/usr/lib/python3/dist-packages/speedtest.py", line 1872, in shell speedtest = Speedtest( File "/usr/lib/python3/dist-packages/speedtest.py", line 1091, in __init__ self.get_config() File "/usr/lib/python3/dist-packages/speedtest.py", line 1173, in get_config ignore_servers = list( ValueError: invalid literal for int() with base 10: '' ~~~ I have tested one of these machines on two different internet connections with the same result. Why is it not working?