Traceback (most recent call last):
  File "electrum\gui\qt\main_window.py", line 158, in request_password
  File "electrum\gui\qt\main_window.py", line 2515, in do_import_privkey
  File "electrum\gui\qt\main_window.py", line 2487, in _do_import
  File "electrum\gui\qt\main_window.py", line 2515, in <lambda>
  File "electrum\wallet.py", line 3225, in import_private_keys
  File "electrum\wallet.py", line 397, in save_db
  File "electrum\wallet_db.py", line 1625, in write
  File "electrum\util.py", line 469, in do_profile
  File "electrum\wallet_db.py", line 1635, in _write
  File "electrum\storage.py", line 86, in write
OSError: [Errno 28] No space left on device