AttributeError: 'str' object has no attribute 'decode' about eospy HOT 7 CLOSED

$ wget https://raw.githubusercontent.com/eosnewyork/eospy/master/examples/push_transaction.py
$ python3 push_transaction.py
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/eospy/dynamic_url.py", line 41, in post_url
    r.raise_for_status()
  File "/usr/local/lib/python3.7/site-packages/requests/models.py", line 939, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: http://api.pennstation.eosnewyork.io:7001/v1/chain/push_transaction

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "push_transaction.py", line 35, in <module>
    resp = ce.push_transaction(trx, key, broadcast=True)
  File "/usr/local/lib/python3.7/site-packages/eospy/cleos.py", line 169, in push_transaction
    return self.post('chain.push_transaction', params=None, data=data)
  File "/usr/local/lib/python3.7/site-packages/eospy/cleos.py", line 31, in post
    return cmd.post_url(url, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/eospy/dynamic_url.py", line 43, in post_url
    raise requests.exceptions.HTTPError('Error: {}'.format(r.json()))
requests.exceptions.HTTPError: Error: {'code': 500, 'message': 'Internal Service Error', 'error': {'code': 3050003, 'name': 'eosio_assert_message_exception', 'what': 'eosio_assert_message assertion failure', 'details': [{'message': 'assertion failure with message: to account does not exist', 'file': 'wasm_interface.cpp', 'line_number': 934, 'method': 'eosio_assert'}, {'message': 'pending console output: ', 'file': 'apply_context.cpp', 'line_number': 72, 'method': 'exec_one'}]}}
```

# new key
new_key = ce.create_key()

print(new_key.to_public())

Python 3.6.5
libeospy==2.0.0
base58==0.2.5