File "electrum/gui/qt/__init__.py", line 215, in wrapper
  File "electrum/gui/qt/__init__.py", line 239, in start_new_window
  File "electrum/gui/qt/__init__.py", line 294, in _start_wizard_to_select_or_create_wallet
  File "electrum/wallet.py", line 1990, in __new__
  File "electrum/wallet.py", line 1821, in __init__
  File "electrum/wallet.py", line 1675, in __init__
  File "electrum/wallet.py", line 1784, in synchronize
  File "electrum/wallet.py", line 1771, in synchronize_sequence
  File "electrum/wallet.py", line 1758, in create_new_address
  File "electrum/wallet.py", line 1751, in derive_address
  File "electrum/wallet.py", line 1850, in derive_pubkeys
  File "electrum/keystore.py", line 458, in derive_pubkey
  File "electrum/keystore.py", line 453, in get_pubkey_from_mpk
  File "electrum/ecc.py", line 188, in __init__
  File "electrum/ecc.py", line 128, in _ser_to_python_ecdsa_point