File "electrum/gui/qt/main_window.py", line 553, in new_wallet
  File "electrum/gui/qt/__init__.py", line 215, in wrapper
  File "electrum/gui/qt/__init__.py", line 239, in start_new_window
  File "electrum/gui/qt/__init__.py", line 282, in _start_wizard_to_select_or_create_wallet
  File "electrum/base_wizard.py", line 589, in create_storage
  File "electrum/util.py", line 356, in <lambda>
  File "electrum/util.py", line 352, in do_profile
  File "electrum/storage.py", line 89, in write
  File "electrum/storage.py", line 100, in _write