用python或linux终端连接wifi

时间:2014-02-09 17:24:18

标签: python linux networking wifi raspberry-pi

我正在尝试通过python和linux终端连接到wifi,但在这两种情况下它都无法与我合作。

对于python,我正在使用这个库https://wifi.readthedocs.org/en/latest/scanning.html  扫描和保存方案工作正常,但每当我键入这行代码 scheme.activate(),我没有输出

任何想法库有什么问题,如果你以前使用过它?

我还尝试使用CLI连接到WiFi网络。我用Google搜索,发现我应该做这三个陈述 1- iwlist wlan0 scan //扫描wireess网络 2- iwconfig wlan0 essid“Mywirelessnetwork”//与网络关联 3- dhclient wla0 //获得UP

每当我执行第2步然后检查iwconfig wlan0时,我发现无线接口没有关联!!

任何想法???

我想要做的是建立一个连接到wifi的方法库,最好是通过python函数或库,并在raspberry PI上测试,因为我正在构建一些需要网络连接的应用程序。

2 个答案:

答案 0 :(得分:2)

这是使用python os模块和Linux iwlist命令搜索wifi设备列表和nmcli命令以便连接到目标设备的一般方法。< / p>

在此代码中,run函数查找与指定名称匹配的设备的SSID(可以是正则表达式模式或服务器名称的唯一部分),然后连接到符合预期条件的所有设备,调用connection函数。

"""
Search for a specific wifi ssid and connect to it.
written by kasramvd.
"""
import os


class Finder:
    def __init__(self, *args, **kwargs):
        self.server_name = kwargs['server_name']
        self.password = kwargs['password']
        self.interface_name = kwargs['interface']
        self.main_dict = {}

    def run(self):
        command = """sudo iwlist wlp2s0 scan | grep -ioE 'ssid:"(.*{}.*)'"""
        result = os.popen(command.format(self.server_name))
        result = list(result)

        if "Device or resource busy" in result:
                return None
        else:
            ssid_list = [item.lstrip('SSID:').strip('"\n') for item in result]
            print("Successfully get ssids {}".format(str(ssid_list)))

        for name in ssid_list:
            try:
                result = self.connection(name)
            except Exception as exp:
                print("Couldn't connect to name : {}. {}".format(name, exp))
            else:
                if result:
                    print("Successfully connected to {}".format(name))

    def connection(self, name):
        try:
            os.system("nmcli d wifi connect {} password {} iface {}".format(name,
       self.password,
       self.interface_name))
        except:
            raise
        else:
            return True

if __name__ == "__main__":
    # Server_name is a case insensitive string, and/or regex pattern which demonstrates
    # the name of targeted WIFI device or a unique part of it.
    server_name = "example_name"
    password = "your_password"
    interface_name = "your_interface_name" # i. e wlp2s0  
    F = Finder(server_name=server_name,
               password=password,
               interface=interface_name)
    F.run()

答案 1 :(得分:1)

首先尝试查看以下链接: http://packages.ubuntu.com/raring/python-wicd https://wifi.readthedocs.org/en/latest/

如果您想通过python使用bash命令,请尝试以下代码:

from subprocess import Popen, STDOUT, PIPE
from time import sleep

handle = Popen('netsh wlan connect wifi_name', stdout=PIPE, stdin=PIPE, shell=True,  stderr=STDOUT)

sleep(10)

handle.stdin.write(b'wifi_password\n')
while handle.poll() == None:
    print handle.stdout.readline().strip()  # print the result

但请确保您在Linux中以超级用户身份运行,但在Windows中没有问题。