A10 driver cannot go to config mode due to check_config_mode()

[inaba-vdom-0]

There is a issue that send_config_set() of A10 driver is not available in netmiko 4.6.0.

Environment

• netmiko 4.6.0
• OS
  • Windows 11
  • Ubuntu 24.04.2 LTS
• Python 3.12.3
• A10 vThunder ACOS 7.0.1

Test Code

from netmiko import ConnectHandler
import logging

logging.basicConfig(filename="./netmiko_debug.log", level=logging.DEBUG)
logger = logging.getLogger("netmiko")

remote_device = {
    "ip": "192.168.1.121",
    "username": "admin",
    "password": "admin",
    "device_type": "a10_ssh",
    "global_delay_factor": 3,
    "session_log": "./test-code.log",
    "fast_cli": False,
}

conn = ConnectHandler(**remote_device)
conn.enable()

showrun = conn.send_command("show running-config")
print(showrun)

input_config = conn.send_config_set(["interface ethernet 1", "enable"])
print(input_config)

showrun = conn.send_command("show running-config")
print(showrun)

conn.disconnect()

Error Output

Traceback (most recent call last):
  File "d:xxxx\netmiko_a10\netmiko-test.py", line 23, in <module>
    input_config = conn.send_config_set(["interface ethernet 1", "enable"])
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:xxxx\netmiko_a10\.venv\Lib\site-packages\netmiko\base_connection.py", line 111, in wrapper_decorator      
    return_val = func(self, *args, **kwargs)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:xxxx\netmiko_a10\.venv\Lib\site-packages\netmiko\base_connection.py", line 2305, in send_config_set       
    output += self.config_mode()
              ^^^^^^^^^^^^^^^^^^
  File "D:xxxx\netmiko_a10\.venv\Lib\site-packages\netmiko\cisco_base_connection.py", line 53, in config_mode       
    return super().config_mode(
           ^^^^^^^^^^^^^^^^^^^^
  File "D:xxxx\netmiko_a10\.venv\Lib\site-packages\netmiko\base_connection.py", line 2130, in config_mode
    if not self.check_config_mode():
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:xxxx\netmiko_a10\.venv\Lib\site-packages\netmiko\a10\a10_ssh.py", line 29, in check_config_mode
    output = self.read_until_pattern(pattern=pattern)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:xxxx\netmiko_a10\.venv\Lib\site-packages\netmiko\base_connection.py", line 705, in read_until_pattern     
    if re.search(pattern, output, flags=re_flags):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\python311\Lib\re\__init__.py", line 176, in search
    return _compile(pattern, flags).search(string)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\python311\Lib\re\__init__.py", line 294, in _compile
    p = _compiler.compile(pattern, flags)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\python311\Lib\re\_compiler.py", line 745, in compile
    p = _parser.parse(p, flags)
        ^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\python311\Lib\re\_parser.py", line 994, in parse
    raise source.error("unbalanced parenthesis")
re.error: unbalanced parenthesis at position 0

Issue Description

In base_connection.py, line 2130, the config_mode() method calls check_config_mode() from a10_ssh.py:

if not self.check_config_mode():

check_config_mode() is called with pattern: str = ")#" and read_until_pattern() is called with else,
but the output contains prompts before entering config mode, so it is unmatched and an error occurs.

if not pattern:
    output = self.read_channel_timing(read_timeout=10.0)
else:
    output = self.read_until_pattern(pattern=pattern)

Next Steps

I plan to create a pull request to fix this issue.
Additionally, I intend to implement support for the save_config() method as well.