Exscript.protocols.exception.TimeoutException: Error while waiting for response from device

[Faerie1999]

hi, with following code,I get the error timeout:

conn = Telnet()
conn.connect(ip, port)
conn.login(read_login())
conn.execute('uname -a')

but using terminal，input telnet ip port,I can remote control the device.why?

Traceback (most recent call last):
File "/Users/admin/docker/k8s_jenkins/SmartAPI/.venv/lib/python3.12/site-packages/Exscript/protocols/protocol.py", line 769, in _app_authenticate
index, match = self._waitfor(prompt_list)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/admin/docker/k8s_jenkins/SmartAPI/.venv/lib/python3.12/site-packages/Exscript/protocols/protocol.py", line 986, in _waitfor
result = self._domatch(re_list, False)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/admin/docker/k8s_jenkins/SmartAPI/.venv/lib/python3.12/site-packages/Exscript/protocols/telnet.py", line 99, in _domatch
raise TimeoutException(error)
Exscript.protocols.exception.TimeoutException: Error while waiting for response from device

[Faerie1999]

i set timeout=20,still report the error.

generic: Attempting to authenticate admin.
generic: Attempting to app-authenticate admin.
shell: Protocol: driver replaced: generic -> shell
shell: Protocol.app_authenticate(): driver replaced
shell: Username prompt 1 received.
shell: Cleartext password prompt received.
Traceback (most recent call last):
File "/Users/admin/docker/k8s_jenkins/SmartAPI/.venv/lib/python3.12/site-packages/Exscript/protocols/protocol.py", line 769, in _app_authenticate
index, match = self._waitfor(prompt_list)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/admin/docker/k8s_jenkins/SmartAPI/.venv/lib/python3.12/site-packages/Exscript/protocols/protocol.py", line 986, in _waitfor
result = self._domatch(re_list, False)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/admin/docker/k8s_jenkins/SmartAPI/.venv/lib/python3.12/site-packages/Exscript/protocols/telnet.py", line 99, in _domatch
raise TimeoutException(error)
Exscript.protocols.exception.TimeoutException: Error while waiting for response from device