C:\pwb\GIT\core>py -3 pwb.py login -all
WARNING: No user is logged in on site commons:commons
Password for user Xqbot on commons:commons (no characters will be shown):
Logging in to commons:commons as Xqbot
Logged in on commons:commons as Xqbot.
Traceback (most recent call last):
  File "pwb.py", line 390, in <module>
    if not main():
  File "pwb.py", line 382, in main
    run_python_file(filename,
  File "pwb.py", line 100, in run_python_file
    exec(compile(source, filename, 'exec', dont_inherit=True),
  File ".\scripts\login.py", line 187, in <module>
    main()
  File ".\scripts\login.py", line 159, in main
    for family_name in namedict:
RuntimeError: dictionary changed size during iteration
CRITICAL: Exiting due to uncaught exception <class 'RuntimeError'>

C:\pwb\GIT\core>py -3 pwb.py watchlist -new
Downloading all watchlists for your accounts in user-config.py
Retrieving watchlist for commons:commons.
Traceback (most recent call last):
  File "pwb.py", line 390, in <module>
    if not main():
  File "pwb.py", line 382, in main
    run_python_file(filename,
  File "pwb.py", line 100, in run_python_file
    exec(compile(source, filename, 'exec', dont_inherit=True),
  File ".\scripts\watchlist.py", line 111, in <module>
    main()
  File ".\scripts\watchlist.py", line 98, in main
    refresh_new()
  File ".\scripts\watchlist.py", line 73, in refresh_new
    for family in config.usernames:
RuntimeError: dictionary changed size during iteration
CRITICAL: Exiting due to uncaught exception <class 'RuntimeError'>