python编写dbus服务

Python 2.7.16
最近接到一个任务需要使用python来编写DBUS服务，注册dbus服务。
新建一个test.py文件。

pip3 install dbus-python
sudo apt-get install libdbus-glib-1-dev
$ pip list
Package       Version
------------- --------------
asn1crypto    0.24.0
cryptography  2.6.1
dbus-python   1.2.16
devscripts    2.19.5+deb10u1
distro        1.3.0
docutils      0.17.1
entrypoints   0.3
gobject       0.1.0
keyring       17.1.1
keyrings.alt  3.1.1
lockfile      0.12.2
meld          3.20.0
onboard       1.4.1
pexpect       4.6.0
pid           3.0.4
Pillow        5.4.1
pip           21.2.4
pycairo       1.16.2
pycrypto      2.6.1
pydbus        0.6.0
PyGObject     3.30.4
pysmbc        1.0.15.6
python-daemon 2.3.0
pyxdg         0.25
reportlab     3.5.13
SecretStorage 2.3.1
service       0.6.0
setproctitle  1.2.2
setuptools    40.8.0
six           1.12.0
wheel         0.32.3

python test.py

#!/usr/bin/env python

import gobject

import dbus
import dbus.service
import dbus.mainloop.glib

class UBXDBUSRegister(dbus.service.Object):
    def __init__(self, bus, object_path):
        dbus.service.Object.__init__(self, bus, object_path)
        self._last_input = None

    @dbus.service.method('com.test.register', in_signature='s', out_signature='s')
    def getString(self,str1):
        print ("string:",str1  )
        return str(str1)

    @dbus.service.method('com.test.register', in_signature='', out_signature='')
    def Quit(self):
        print ("Quit")
        exit(0)
        return 

if __name__ == '__main__':
    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)

    session_bus = dbus.SessionBus()
    name = dbus.service.BusName("com.test.register")
    ubxPath = "/com/test/register"
    object = UBXDBUSRegister(session_bus, ubxPath)

    mainloop = gobject.MainLoop()
    print ("Running example service.")
    mainloop.run()

运行结果如下：

调用结果