在linux上用python将文件写入usb

如果问题是如此愚蠢,我很抱歉,但我是 linux和 python的新手.
关键是我需要编写一个python脚本来检测连接的usb棒并将文件写入其中.我使用的是opensuse(但是在任何 Linux发行版中,脚本都可以使用.)在理想情况下.如果安装了usb,当前版本可以检测usb并写入文件.但是在我的机器上只有在文件管理器中浏览它时才会安装usb.直到那个usb被检测为分离但没有挂载点.那么,我如何强制系统挂载usb或者如何使用devname或devpath或其他信息来编写一个文件,我可以从hal manager获取.我不能使用“mount”命令,因为它需要root权限

简化源代码：

import dbus,gobject,os

class DeviceAddedListener:
    def __init__(self):
        self.bus = dbus.SystemBus()
        self.hal_manager_obj = self.bus.get_object( "org.freedesktop.Hal","/org/freedesktop/Hal/Manager")
        self.hal_manager = dbus.Interface(self.hal_manager_obj,"org.freedesktop.Hal.Manager")
        self.hal_manager.connect_to_signal("DeviceAdded",self.added)

    def show(self,name,udi):
        d_object = self.bus.get_object('org.freedesktop.Hal',udi)
        d_interface = dbus.Interface(d_object,'org.freedesktop.Hal.Device')

        if d_interface.QueryCapability("volume"):
            print name
            props = [ "block.device","volume.label","volume.is_mounted","volume.mount_point","volume.size"]
            for p in props:
                print 't',p," = ",try:
                    print d_interface.GetProperty(p)
                except:
                    print "Fail"

    def added(self,udi): 
        self.show("DeviceAdded",udi)
        self.bus.add_signal_receiver(self.property_modified,"PropertyModified","org.freedesktop.Hal.Device","org.freedesktop.Hal",udi,path_keyword = "sending_device" )

    def property_modified(self,numupdates,updates,sending_device = None): 
        self.show("PropertyModified",sending_device) 



if __name__ == '__main__':
    from dbus.mainloop.glib import DBusGMainLoop
    DBusGMainLoop(set_as_default=True)
    loop = gobject.MainLoop()
    DeviceAddedListener()
    print "running"
    loop.run()

usb插入时的输出

DeviceAdded
block.device  =  /dev/sdb1
volume.label  =  @
volume.is_mounted  =  0
volume.mount_point  =  
volume.size  =  4009722368

usb插入并安装时的输出

block.device  =  /dev/sdb1
volume.label  =  @
volume.is_mounted  =  1
volume.mount_point  =  /media/@
volume.size  =  4009722368

谢谢你的帮助！

mount /dev/sdb1 /mnt/usb1 -o noauto,users,rw,umask=0