File "site-packages\electrum-3.1.0-py3.5.egg\electrum_gui\qt\__init__.py", line 206, in start_new_window
  File "site-packages\electrum-3.1.0-py3.5.egg\electrum_gui\qt\installwizard.py", line 282, in run_and_get_wallet
  File "site-packages\electrum-3.1.0-py3.5.egg\electrum\storage.py", line 339, in upgrade
  File "site-packages\electrum-3.1.0-py3.5.egg\electrum\util.py", line 288, in <lambda>
  File "site-packages\electrum-3.1.0-py3.5.egg\electrum\util.py", line 284, in do_profile
  File "site-packages\electrum-3.1.0-py3.5.egg\electrum\storage.py", line 241, in write
  File "site-packages\electrum-3.1.0-py3.5.egg\electrum\storage.py", line 258, in _write