File "electrum\util.py", line 882, in run_with_except_hook
  File "threading.py", line 864, in run
  File "electrum\base_wizard.py", line 569, in task
  File "electrum\util.py", line 336, in <lambda>
  File "electrum\util.py", line 332, in do_profile
  File "electrum\storage.py", line 107, in write
  File "electrum\storage.py", line 129, in _write