Unexpected token

[phillebaba]

bus = await MessageBus(bus_type = BusType.SYSTEM).connect()
introspection = await bus.introspect('org.freedesktop.login1', '/org/freedesktop/login1')

This example code throws the following exception when run.

  File "/home/user/.virtualenvs/alfrodull/lib/python3.7/site-packages/dbus_next/signature.py", line 63, in _parse_next
    raise InvalidSignatureError(f'got unexpected token: "{token}"')
dbus_next.errors.InvalidSignatureError: got unexpected token: "h"

I have not had time to fully understand the function of signature.py but I think the issue is caused by the token missing in the string on line 23 rather than the token being invalid.

Changing _tokens = 'ybnqiuxtdsogav({' to _tokens = 'hybnqiuxtdsogav({' seems to resolve the problem.

Is this correct or have I misunderstood something?

[acrisci]

This is a valid signature token that should be supported. It takes a bit more than adding it to that list though.

Unsigned 32-bit integer representing an index into an out-of-band array of file descriptors, transferred via some platform-specific mechanism (mnemonic: h for handle)

[acrisci]

Actually now I see I implemented it everywhere except there, so fixing it is really as easy as that.

Thanks for bringing this to my attention.