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##### SUMMARY
We seem to be having an issue with eos testing and AttributeError: 'NoneType' object has no attribute 'endswith'.

https://object-storage-ca-ymq-1.vexxhost.net/v1/a0b4156a37f9453eb4ec7db5422272df/ansible_79/61779/2a3bc59e39230ad945d42da08a8aad3f91dee027/third-party-check/ansible-test-network-integration-eos-python37/52a7e42/controller/ansible-debug.html#l48225

It looks like self._get_prompt() is None.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
eos_logging

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below

```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
zuul.ansible.com
```

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##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below
2019-09-04 20:16:25,014 p=zuul u=31800 | Traceback (most recent call last):
  File "/home/zuul/src/github.com/ansible/ansible/lib/ansible/utils/jsonrpc.py", line 45, in handle_request
    result = rpc_method(*args, **kwargs)
  File "/home/zuul/src/github.com/ansible/ansible/lib/ansible/plugins/connection/network_cli.py", line 389, in update_play_context
    self._terminal.on_become(passwd=auth_pass)
  File "/home/zuul/src/github.com/ansible/ansible/lib/ansible/plugins/terminal/eos.py", line 62, in on_become
    if self._get_prompt().endswith(b'#'):
AttributeError: 'NoneType' object has no attribute 'endswith'
```

'''
        Close the active connection to the device
        '''
        
        if self._connected:
            self.queue_message('debug', "closing ssh connection to device")
            if self._ssh_shell:
                self.queue_message('debug', "firing event: on_close_shell()")
                self._terminal.on_close_shell()
                self._ssh_shell.close()
                self._ssh_shell = None
                self.queue_message('debug', "cli session is now closed")
                self.paramiko_conn.close()
                self.paramiko_conn = None
                self.queue_message('debug', "ssh connection has been closed successfully")
        super(Connection, self).close()
    def receive(self, command=None, prompts=None, answer=None, newline=True, prompt_retry_check=False, check_all=False):
        '''
        Handles receiving of output from command
        '''
        self._matched_prompt = None
        self._matched_cmd_prompt = None
        recv = BytesIO()
        handled = False
        command_prompt_matched = False
        matched_prompt_window = window_count = 0
        
        self._terminal_stderr_re = self._get_terminal_std_re('terminal_stderr_re')