无法运行python-bluez RFCOMM服务器示例脚本

Question

我正在尝试在我的Android应用程序和Raspberry Pi 3之间建立蓝牙通信链接。我试着在我的树莓派上使用pybluez。我的问题是，当我尝试运行pybluez中包含的示例代码时（见下文），我会收到以下错误消息：

Traceback (most recent call last):
  File "/usr/share/doc/python-bluez/examples/simple/rfcomm-server.py", line 20, in <module>
    profiles = [ SERIAL_PORT_PROFILE ],
  File "/usr/lib/python2.7/dist-packages/bluetooth/bluez.py", line 176, in advertise_service
    raise BluetoothError (str (e))
BluetoothError: (2, 'No such file or directory')

这是我试图运行的脚本：问题似乎出在advertise_service方法中。。。

# file: rfcomm-server.py
# auth: Albert Huang <[e-mail]>
# desc: simple demonstration of a server application that uses RFCOMM sockets
#
# $Id: rfcomm-server.py 518 2007-08-10 07:20:07Z albert $   

from bluetooth import *
server_sock=BluetoothSocket( RFCOMM )
server_sock.bind(("",PORT_ANY))
server_sock.listen(1)
port = server_sock.getsockname()[1]
uuid = "94f39d29-7d6d-437d-973b-fba39e49d4ee"
advertise_service( server_sock, "SampleServer",
                   service_id = uuid,
                   service_classes = [ uuid, SERIAL_PORT_CLASS ],
                   profiles = [ SERIAL_PORT_PROFILE ], 
#                   protocols = [ OBEX_UUID ] 
                    )
print "Waiting for connection on RFCOMM channel %d" % port
client_sock, client_info = server_sock.accept()
print "Accepted connection from ", client_info
try:
    while True:
        data = client_sock.recv(1024)
        if len(data) == 0: break
        print "received [%s]" % data
except IOError:
    pass
print "disconnected"
client_sock.close()
server_sock.close()
print "all done"

有趣的是，下面的脚本运行得很完美，但我无法从Android连接，因为我无法在Android中设置套接字的端口等。

import bluetooth
server_sock=bluetooth.BluetoothSocket( bluetooth.RFCOMM )
port = 1
server_sock.bind(("",port))
server_sock.listen(1)
client_sock,address = server_sock.accept()
print("Accepted connection from ",address)
data = client_sock.recv(1024)
print("received [%s]" % data)
client_sock.close()
server_sock.close()

官方示例脚本出现错误消息的原因是什么？？？我已经遵循了此处描述的步骤：https://stackoverflow.com/a/14827036/6149322

谢谢你的帮助！

Answer 1

这个问题可能很老，但也许这对某些人有帮助：我认为你根本没有安装所需的所有东西。要使pybluez正常工作，您需要两个包bluetooth和libbluetooth-dev。

sudo apt-get install bluetooth libbluetooth-dev