File "site-packages\electrum-3.2.2-py3.5.egg\electrum\util.py", line 856, in run_with_except_hook
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\network.py", line 1060, in run
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\network.py", line 1042, in wait_on_sockets
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\network.py", line 709, in process_responses
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\network.py", line 614, in process_response
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\network.py", line 1087, in on_notify_header
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\blockchain.py", line 260, in save_header
  File "site-packages\electrum-3.2.2-py3.5.egg\electrum\blockchain.py", line 252, in write