Fails to parse linux kconfig

[rossburton]

Maybe I'm doing something stupid, but I can't seem to parse the linux kconfig. With a minimal piece of code placed in the kernel tree:

import os, kconfiglib
# set environment as expected
os.environ["KERNELVERSION"] = "6.12.2"
os.environ["srctree"] = "/home/rosbur01/Code/drive-by/linux/"
os.environ["SRCARCH"] = "arm64"
os.environ["ARCH"] = "arm64"
os.environ["CC"] = "gcc"
os.environ["LD"] = "ld"

kconf = kconfiglib.Kconfig("Kconfig")

This gives:

Traceback (most recent call last):
  File "/home/rosbur01/Code/drive-by/linux/./argh.py", line 16, in <module>
    kconf = kconfiglib.Kconfig("Kconfig")
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/rosbur01/.local/lib/python3.12/site-packages/kconfiglib.py", line 947, in __init__
    self._init(filename, warn, warn_to_stderr, encoding)
  File "/home/rosbur01/.local/lib/python3.12/site-packages/kconfiglib.py", line 1085, in _init
    self._parse_block(None, self.top_node, self.top_node).next = None
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/rosbur01/.local/lib/python3.12/site-packages/kconfiglib.py", line 2989, in _parse_block
    prev = self._parse_block(None, parent, prev)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/rosbur01/.local/lib/python3.12/site-packages/kconfiglib.py", line 2989, in _parse_block
    prev = self._parse_block(None, parent, prev)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/rosbur01/.local/lib/python3.12/site-packages/kconfiglib.py", line 3091, in _parse_block
    self._parse_error(
  File "/home/rosbur01/.local/lib/python3.12/site-packages/kconfiglib.py", line 3879, in _parse_error
    raise KconfigError("{}error: couldn't parse '{}': {}".format(
kconfiglib.KconfigError: kernel/module/Kconfig:4: error: couldn't parse 'modules': unrecognized construct

kernel/module/Kconfig looks like this:

# SPDX-License-Identifier: GPL-2.0-only
menuconfig MODULES
        bool "Enable loadable module support"
        modules