ASUSWRT Component: The command was not found or was not executable: ssh.

[kukudemajia]

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You should only file an issue if you found a bug. Feature and enhancement requests should go in the Feature Requests section of our community forum:

Home Assistant release (hass --version):
0.65.6

Python release (python3 --version):
3.6.3

Component/platform:
ASUSWRT

Description of problem:

Error setting up platform asuswrt
Traceback (most recent call last):
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/__init__.py", line 181, in async_setup_platform
    platform.get_scanner, hass, {DOMAIN: p_config})
  File "/usr/lib/python3.6/asyncio/futures.py", line 332, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/lib/python3.6/asyncio/tasks.py", line 250, in _wakeup
    future.result()
  File "/usr/lib/python3.6/asyncio/futures.py", line 245, in result
    raise self._exception
  File "/usr/lib/python3.6/concurrent/futures/thread.py", line 56, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/asuswrt.py", line 82, in get_scanner
    scanner = AsusWrtDeviceScanner(config[DOMAIN])
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/asuswrt.py", line 130, in __init__
    data = self.get_asuswrt_data()
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/asuswrt.py", line 167, in get_asuswrt_data
    devices.update(self._get_wl())
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/asuswrt.py", line 180, in _get_wl
    lines = self.connection.run_command(_WL_CMD)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/asuswrt.py", line 280, in run_command
    self.connect()
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/homeassistant/components/device_tracker/asuswrt.py", line 308, in connect
    password=self._password, port=self._port)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pexpect/pxssh.py", line 279, in login
    spawn._spawn(self, cmd)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pexpect/pty_spawn.py", line 267, in _spawn
    'executable: %s.' % self.command)
pexpect.exceptions.ExceptionPexpect: The command was not found or was not executable: ssh.

Expected:

Problem-relevant configuration.yaml entries and steps to reproduce:

device_tracker:
  - platform: asuswrt
    host: 192.168.0.4
    username: !secret asuswrt_username
    password: !secret asuswrt_password
    mode: ap
    protocol: ssh
    port: 22
    track_new_devices: yes
    interval_seconds: 20
    consider_home: 40

**Traceback (if applicable):**
```bash

Additional info:
(homeassistant_venv) homeassistant@ubuntu:/srv/homeassistant/homeassistant_venv/bin$ which ssh
/usr/bin/ssh
(homeassistant_venv) homeassistant@ubuntu:/srv/homeassistant/homeassistant_venv/bin$ ssh -V
OpenSSH_7.5p1 Ubuntu-10ubuntu0.1, OpenSSL 1.0.2g 1 Mar 2016

[metbril]

Are you sure you need to use port 23? The default is 22.

[kukudemajia]

Haha this is a stupid mistake. I later found this problem, but I have already found the real problem.

[metbril]

Perhaps you should add the solution here, and close the issue?

[kukudemajia]

Ok,just doing!

[kukudemajia]

My solution:
Edit /srv/homeassistant/homeassistant_venv/lib/python3.6/site-packages/pexpect/pty_spawn.py
About 264 lines:
command_with_path = which(self.command)
Change to:
if self.command == 'ssh':
command_with_path = '/usr/bin/ssh'
else:
command_with_path = which(self.command)
It is not the best solution, but it work.
I don't know why which('ssh') return the value of none when it run in the HASS.
If I run which('ssh') in python console,it will return the correct value: /usr/bin/ssh.