File "/usr/local/lib/python3.6/dist-packages/electrum/gui/qt/address_list.py", line 176, in <lambda>
    menu.addAction(_("Remove from wallet"), lambda: self.parent.remove_address(addr))
  File "/usr/local/lib/python3.6/dist-packages/electrum/gui/qt/main_window.py", line 1792, in remove_address
    self.wallet.delete_address(addr)
  File "/usr/local/lib/python3.6/dist-packages/electrum/wallet.py", line 1293, in delete_address
    self.storage.write()
  File "/usr/local/lib/python3.6/dist-packages/electrum/util.py", line 336, in <lambda>
    return lambda *args, **kw_args: do_profile(args, kw_args)
  File "/usr/local/lib/python3.6/dist-packages/electrum/util.py", line 332, in do_profile
    o = func(*args, **kw_args)
  File "/usr/local/lib/python3.6/dist-packages/electrum/storage.py", line 107, in write
    self._write()
  File "/usr/local/lib/python3.6/dist-packages/electrum/storage.py", line 120, in _write
    f.write(s)