[🐛 Bug]: devtools.debugger.enable() causes exception

What happened?

Trying to enable the Chrome DevTools debugger using the wrappers provided by Selenium will cause an exception. The enable() functions for other CDP domains seem to work though (e.g., devtools.runtime.enable()).

How can we reproduce the issue?

import trio
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager


async def main():
    driver = webdriver.Chrome(service=Service(ChromeDriverManager().install()))

    async with driver.bidi_connection() as connection:
        session, devtools = connection.session, connection.devtools

        driver.get('https://google.com')

        # Try to enable debugger
        await session.execute(devtools.debugger.enable())


trio.run(main)

Relevant log output

Traceback (most recent call last):
  File "bug.py", line 19, in <module>
    trio.run(main)
  File "/home/tim/.local/lib/python3.8/site-packages/trio/_core/_run.py", line 1946, in run
    raise runner.main_task_outcome.error
  File "bug.py", line 16, in main
    await session.execute(devtools.debugger.enable())
  File "/usr/lib/python3.8/contextlib.py", line 189, in __aexit__
    await self.gen.athrow(typ, value, traceback)
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py", line 1188, in bidi_connection
    yield BidiConnection(session, cdp, devtools)
  File "/usr/lib/python3.8/contextlib.py", line 189, in __aexit__
    await self.gen.athrow(typ, value, traceback)
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/common/bidi/cdp.py", line 481, in open_cdp
    await conn.aclose()
  File "/home/tim/.local/lib/python3.8/site-packages/trio/_core/_run.py", line 813, in __aexit__
    raise combined_error_from_nursery
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/common/bidi/cdp.py", line 458, in _reader_task
    session._handle_data(data)
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/common/bidi/cdp.py", line 256, in _handle_data
    self._handle_event(data)
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/common/bidi/cdp.py", line 293, in _handle_event
    event = devtools.util.parse_json_event(data)
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/common/devtools/v102/util.py", line 19, in parse_json_event
    return _event_parsers[json['method']].from_json(json['params'])
  File "/home/tim/.local/lib/python3.8/site-packages/selenium/webdriver/common/devtools/v102/debugger.py", line 1219, in from_json
    script_language=debugger.ScriptLanguage.from_json(json['scriptLanguage']) if 'scriptLanguage' in json else None,
NameError: name 'debugger' is not defined

Operating System

Linux Mint 20.1

Selenium version

Python 4.3.0

What are the browser(s) and version(s) where you see this issue?

Chrome 102.0.5005

What are the browser driver(s) and version(s) where you see this issue?

ChromeDriver 102.0.5005.61

Are you using Selenium Grid?

No response

[symonk]

Thanks for the report @TimRecktenwald I have a small patch but the upstream generator is likely also broken which I will look to submit a patch too; should be usable when we ship a fix

[TimRecktenwald]

Yes, the error persists with version 103 of Chrome and ChromeDriver.