File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/gui/qt/__init__.py", line 245, in wrapper
    return func(self, *args, **kwargs)
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/gui/qt/__init__.py", line 269, in start_new_window
    wallet = self._start_wizard_to_select_or_create_wallet(path)
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/gui/qt/__init__.py", line 314, in _start_wizard_to_select_or_create_wallet
    db = WalletDB(storage.read(), manual_upgrades=False)
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/wallet_db.py", line 72, in __init__
    self.load_data(raw)
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/wallet_db.py", line 105, in load_data
    self.upgrade()
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/util.py", line 408, in <lambda>
    return lambda *args, **kw_args: do_profile(args, kw_args)
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/util.py", line 404, in do_profile
    o = func(*args, **kw_args)
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/wallet_db.py", line 161, in upgrade
    self._convert_wallet_type()
  File "/tmp/.mount_electryTFkXz/usr/lib/python3.7/site-packages/electrum/wallet_db.py", line 249, in _convert_wallet_type
    xpub = xpubs["x/0'"]