File "/home/mdz/.local/lib/python3.8/site-packages/electrum/gui/qt/main_window.py", line 2981, in import_addresses
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/gui/qt/main_window.py", line 2963, in _do_import
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/wallet.py", line 2317, in import_addresses
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/wallet.py", line 302, in save_db
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/wallet_db.py", line 1239, in write
    self._write(storage)
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/wallet_db.py", line 1247, in _write
    storage.write(self.dump())
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/util.py", line 408, in <lambda>
    return lambda *args, **kw_args: do_profile(args, kw_args)
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/util.py", line 404, in do_profile
    o = func(*args, **kw_args)
  File "/home/mdz/.local/lib/python3.8/site-packages/electrum/storage.py", line 86, in write