It is recommended to use Python 3.5 or above.
See T213287 for further information.

  FutureWarning)

Logging in to wikisource:it as BrolloBot@BrolloBot
Logged in on wikisource:it as BrolloBot.
Logging in to wikisource:la as BrolloBot@BrolloBot
Logged in on wikisource:la as BrolloBot.
Traceback (most recent call last):
  File "pwb.py", line 297, in <module>
    if not main():
  File "pwb.py", line 292, in main
    run_python_file(filename, [filename] + args, argvu, file_package)
  File "pwb.py", line 96, in run_python_file
    main_mod.__dict__)
  File "./scripts/login.py", line 198, in <module>
    main()
  File "./scripts/login.py", line 170, in main
    for family_name in namedict:
RuntimeError: dictionary changed size during iteration
CRITICAL: Exiting due to uncaught exception <type 'exceptions.RuntimeError'>

Alex brollo