File "Electrum-3.2.2-py3.6.egg/electrum/util.py", line 856, in run_with_except_hook
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 1060, in run
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 1042, in wait_on_sockets
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 709, in process_responses
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 652, in process_response
  File "Electrum-3.2.2-py3.6.egg/electrum/verifier.py", line 116, in verify_merkle
  File "Electrum-3.2.2-py3.6.egg/electrum/wallet.py", line 305, in save_verified_tx
  File "Electrum-3.2.2-py3.6.egg/electrum/util.py", line 317, in <lambda>
  File "Electrum-3.2.2-py3.6.egg/electrum/util.py", line 313, in do_profile
  File "Electrum-3.2.2-py3.6.egg/electrum/storage.py", line 247, in write
  File "Electrum-3.2.2-py3.6.egg/electrum/storage.py", line 255, in _write
  File "json/__init__.py", line 238, in dumps
  File "json/encoder.py", line 201, in encode
  File "json/encoder.py", line 430, in _iterencode
  File "json/encoder.py", line 404, in _iterencode_dict
  File "json/encoder.py", line 353, in _iterencode_dict