Python WiFi Example

wifi.py

# -*- coding: utf-8 -*-

import wifi


def Search():
    wifilist = []

    cells = wifi.Cell.all('wlan0')

    for cell in cells:
        wifilist.append(cell)

    return wifilist


def FindFromSearchList(ssid):
    wifilist = Search()

    for cell in wifilist:
        if cell.ssid == ssid:
            return cell

    return False


def FindFromSavedList(ssid):
    cell = wifi.Scheme.find('wlan0', ssid)

    if cell:
        return cell

    return False


def Connect(ssid, password=None):
    cell = FindFromSearchList(ssid)

    if cell:
        savedcell = FindFromSavedList(cell.ssid)

        # Already Saved from Setting
        if savedcell:
            savedcell.activate()
            return cell

        # First time to conenct
        else:
            if cell.encrypted:
                if password:
                    scheme = Add(cell, password)

                    try:
                        scheme.activate()

                    # Wrong Password
                    except wifi.exceptions.ConnectionError:
                        Delete(ssid)
                        return False

                    return cell
                else:
                    return False
            else:
                scheme = Add(cell)

                try:
                    scheme.activate()
                except wifi.exceptions.ConnectionError:
                    Delete(ssid)
                    return False

                return cell
    
    return False


def Add(cell, password=None):
    if not cell:
        return False

    scheme = wifi.Scheme.for_cell('wlan0', cell.ssid, cell, password)
    scheme.save()
    return scheme


def Delete(ssid):
    if not ssid:
        return False

    cell = FindFromSavedList(ssid)

    if cell:
        cell.delete()
        return True

    return False


if __name__ == '__main__':
    # Search WiFi and return WiFi list
    print Search()

    # Connect WiFi with password & without password
    print Connect('OpenWiFi')
    print Connect('ClosedWiFi', 'password')

    # Delete WiFi from auto connect list
    print Delete('DeleteWiFi')

Thanks for the script: I do have a question because of the way I am trying to use this script. I am using the python script as a cgi page. I can't seem to connect to the web from there. The idea is to have users connect to a hotspot through a Raspberry Pi and then they can connect the device to a wifi network via the script on the page. Can you help?

Hey Gariantroll, look at Hotspotd on github it works really well.

hey I am trying to run this script as a module but I am getting Permission denied error when running it I can not use sudo because it is a cgi scrip that is called from a webserver.

thanks for the script: When i try to run the script by taking individual functions I'm getting this error- "Attribute error: Scheme has no attribute ssid". Please help me on this.

what is the wifi is off?

if*

Sir
I am trying to run this code on my laptop.I am getting error."Couldnot find a version that satisfies the requirement wifi .No matching distribution found for wifi.I tried installing using command line. sudo pip install wifi.failed.please help.thanking you.santhosh.

Traceback (most recent call last):
File "WifiModuleLibrary.py", line 101, in
print(Connect('uth-open2'))
File "WifiModuleLibrary.py", line 65, in Connect
scheme.activate()
File "/usr/local/lib/python3.6/dist-packages/wifi/scheme.py", line 173, in activate
ifup_output = subprocess.check_output(['/sbin/ifup'] + self.as_args(), stderr=subprocess.STDOUT)
File "/usr/lib/python3.6/subprocess.py", line 336, in check_output
**kwargs).stdout
File "/usr/lib/python3.6/subprocess.py", line 405, in run
stdout, stderr = process.communicate(input, timeout=timeout)
File "/usr/lib/python3.6/subprocess.py", line 830, in communicate
stdout = self.stdout.read()

for all who have a problem with the script , Rename the file from wifi.py to any other name then run the script

Thanks. Unfortunately, I ran into a problem. I loaded wifi 'pip install wifi' earlier today. The error I got running the module, following the command, is:

python wifi_taylor.py
Traceback (most recent call last):
File "wifi_taylor.py", line 102, in
print Search()
File "wifi_taylor.py", line 9, in Search
cells = wifi.Cell.all('wlan0')
AttributeError: 'module' object has no attribute 'Cell'

Please advise.
Thanks. again.

I figured out the problem. I had originally saved the module you provided as 'wifi.pi' in the same folder as my execution, so it was importing itself recursively. Removing the module and the compiled code fixed the problem.

hi, any body please help
i have struck with the following error when i tried to connect to the Cell(ssid=Vamsi).

[Cell(ssid=SPVF), Cell(ssid=Vamsi), Cell(ssid=Guest), Cell(ssid=ACT_Dlink3Pole)]
Traceback (most recent call last):
File "/home/pi/Desktop/configread.py", line 104, in
print(Connect('Vamsi', '12345678'))
File "/home/pi/Desktop/configread.py", line 49, in Connect
scheme = Add(cell, password)
File "/home/pi/Desktop/configread.py", line 81, in Add
scheme.save()
File "/home/pi/.local/lib/python3.5/site-packages/wifi/scheme.py", line 135, in save
with open(self.interfaces, 'a') as f:
PermissionError: [Errno 13] Permission denied: '/etc/network/interfaces'

Hi,
I'm getting the next error:

Traceback (most recent call last):
File "ConnectWifi.py", line 86, in
print (Connect("stratux"))
File "ConnectWifi.py", line 33, in Connect
savedcell.activate()
File "/usr/local/lib/python3.6/site-packages/wifi/scheme.py", line 172, in activate
subprocess.check_output(['/sbin/ifdown', self.interface], stderr=subprocess.STDOUT)
File "/usr/local/lib/python3.6/subprocess.py", line 336, in check_output
**kwargs).stdout
File "/usr/local/lib/python3.6/subprocess.py", line 418, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['/sbin/ifdown', 'wlan0']' returned non-zero exit status 1

Please help me.

Thanks for the attention, I’m looking forward for any reply.

D:>python wifi.py
Traceback (most recent call last):
File "wifi.py", line 102, in
print Search()
File "wifi.py", line 9, in Search
cells = wifi.Cell.all('wlan0')
AttributeError: 'module' object has no attribute 'Cell'

Why am I getting this error? Cant I use this in windows 10? I am new to python. Please let me know soon. Thanks

What code can i use in windows?

did you install the wifi package?
if not you should probaly "learn python" first before you are using random scripts ...

I am getting an error like this. wifi.exceptions.InterfaceError: b"wlan0 Interface doesn't support scanning.".
Any help is appreciated.

I am getting an error like this. wifi.exceptions.InterfaceError: b"wlan0 Interface doesn't support scanning.".
Any help is appreciated.

run ifconfig , and see ur interface, it is likely not wlan0, but something like wlp2s0

hi, any body please help
i have struck with the following error when i tried to connect to the Cell(ssid=Vamsi).

[Cell(ssid=SPVF), Cell(ssid=Vamsi), Cell(ssid=Guest), Cell(ssid=ACT_Dlink3Pole)]
Traceback (most recent call last):
File "/home/pi/Desktop/configread.py", line 104, in
print(Connect('Vamsi', '12345678'))
File "/home/pi/Desktop/configread.py", line 49, in Connect
scheme = Add(cell, password)
File "/home/pi/Desktop/configread.py", line 81, in Add
scheme.save()
File "/home/pi/.local/lib/python3.5/site-packages/wifi/scheme.py", line 135, in save
with open(self.interfaces, 'a') as f:
PermissionError: [Errno 13] Permission denied: '/etc/network/interfaces'

Did you find solution for this

Struck Here Some Help Please

cells = wifi.Cell.all('wlan0')
Traceback (most recent call last):
File "", line 1, in
File "G:\Python\lib\site-packages\wifi\scan.py", line 38, in all
iwlist_scan = subprocess.check_output(['/sbin/iwlist', interface, 'scan'],
File "G:\Python\lib\subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "G:\Python\lib\subprocess.py", line 489, in run
with Popen(*popenargs, **kwargs) as process:
File "G:\Python\lib\subprocess.py", line 854, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "G:\Python\lib\subprocess.py", line 1307, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

Struck Here Some Help Please

cells = wifi.Cell.all('wlan0')
Traceback (most recent call last):
File "", line 1, in
File "G:\Python\lib\site-packages\wifi\scan.py", line 38, in all
iwlist_scan = subprocess.check_output(['/sbin/iwlist', interface, 'scan'],
File "G:\Python\lib\subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "G:\Python\lib\subprocess.py", line 489, in run
with Popen(*popenargs, **kwargs) as process:
File "G:\Python\lib\subprocess.py", line 854, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "G:\Python\lib\subprocess.py", line 1307, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

It is because you are on windows 10.
I am looking for the interface to enter for windows 10 too ...

this is needed root access only?
any idea without root access?

Struck Here Some Help Please

cells = wifi.Cell.all('wlan0')
Traceback (most recent call last):
File "", line 1, in
File "G:\Python\lib\site-packages\wifi\scan.py", line 38, in all
iwlist_scan = subprocess.check_output(['/sbin/iwlist', interface, 'scan'],
File "G:\Python\lib\subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "G:\Python\lib\subprocess.py", line 489, in run
with Popen(*popenargs, **kwargs) as process:
File "G:\Python\lib\subprocess.py", line 854, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "G:\Python\lib\subprocess.py", line 1307, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

It is because you are on windows 10.
I am looking for the interface to enter for windows 10 too ...

did you found any solution?

Struck Here Some Help Please

cells = wifi.Cell.all('wlan0')
Traceback (most recent call last):
File "", line 1, in
File "G:\Python\lib\site-packages\wifi\scan.py", line 38, in all
iwlist_scan = subprocess.check_output(['/sbin/iwlist', interface, 'scan'],
File "G:\Python\lib\subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "G:\Python\lib\subprocess.py", line 489, in run
with Popen(*popenargs, **kwargs) as process:
File "G:\Python\lib\subprocess.py", line 854, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "G:\Python\lib\subprocess.py", line 1307, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

It is because you are on windows 10.
I am looking for the interface to enter for windows 10 too ...

did you found any solution?

Yes:
Here you are (old code that worked a long time ago^^)

import os
from sys import platform
import time
if platform in ["win32", "linux"]:
    import pywifi
    from pywifi import const
import subprocess
import re


def main(ssid, psk, timeout):
    print("Wifi connecting: SSID {0} ".format(ssid))
    if ssid == get_current_wifi():
        print("Wifi already connected to {0}".format(ssid))
        return
    connect_wifi(ssid, psk, int(timeout))


def create_wifi_interface():
    print("Creating wifi interface")
    wifi = pywifi.PyWiFi()
    return wifi.interfaces()[0]


def disconnect_wifi(timeout, interface):
    print("Disconnect wifi")
    interface.disconnect()
    t_0 = time.time()
    while not (interface.status() in [const.IFACE_DISCONNECTED,
                                      const.IFACE_INACTIVE]):
        if time.time() - t_0 > timeout:
            raise TimeoutError
        time.sleep(0.1)
        print(".", end="")
    print("Disconnect wifi succes!")


def connect_wifi(ssid, psk, timeout):
    print("Connect wifi for {0}".format(platform))
    interface = create_wifi_interface()
    disconnect_wifi(timeout, interface)
    profile = pywifi.Profile()
    profile.ssid = ssid
    profile.auth = const.AUTH_ALG_OPEN
    profile.akm.append(const.AKM_TYPE_WPA2PSK)
    profile.cipher = const.CIPHER_TYPE_CCMP
    profile.key = psk
    interface.remove_all_network_profiles()
    tmp_profile = interface.add_network_profile(profile)
    interface.connect(tmp_profile)
    t_0 = time.time()
    while not (interface.status() == const.IFACE_CONNECTED):
        if time.time() - t_0 > timeout:
            raise TimeoutError
        time.sleep(0.1)
        print(".", end="")
    print("\n", "Connect wifi succes!")


def get_current_wifi():
    print("Get current wifi for {0}".format(platform))
    ssid = ""
    if platform == "win32":  # Windows
        try:
            ssid = get_current_wifi_windows()
        except subprocess.CalledProcessError:
            pass
    elif platform == "linux":
        try:
            ssid = get_current_wifi_linux()
        except AttributeError:
            pass
    else:
        raise OSError
    print("Current ssid {0}".format(ssid))
    return ssid


def get_current_wifi_linux():
    network_information = os.popen('/sbin/iwconfig | grep ESSID').read()
    ssid = re.search('ESSID:"(.*)"', network_information).group(1)
    return ssid


def get_current_wifi_windows():
    network_information = str(subprocess.check_output(["netsh", "wlan", "show", "network"]))
    network_information = network_information.replace('\\r', '')
    network_information = network_information.replace("b' ", '')
    network_information = network_information.replace(":", '\n')
    network_information = network_information.replace("\\n", '\n')
    network_information = network_information.splitlines()
    ssid = network_information[6][1:]
    return ssid

To make it work on windows 10 just use:

subprocess.check_output(["netsh", "wlan", "show", "network"])

Thank you very much for reply Regards, Chetanya Agrawal

…

On Tue, Jul 6, 2021 at 9:08 PM Vincent Bénet ***@***.***> wrote: ***@***.***Benet* commented on this gist. ------------------------------ Struck Here Some Help Please cells = wifi.Cell.all('wlan0') Traceback (most recent call last): File "", line 1, in File "G:\Python\lib\site-packages\wifi\scan.py", line 38, in all iwlist_scan = subprocess.check_output(['/sbin/iwlist', interface, 'scan'], File "G:\Python\lib\subprocess.py", line 411, in check_output return run(*popenargs, stdout=PIPE, timeout=timeout, check=True, File "G:\Python\lib\subprocess.py", line 489, in run with Popen(*popenargs, **kwargs) as process: File "G:\Python\lib\subprocess.py", line 854, in *init* self._execute_child(args, executable, preexec_fn, close_fds, File "G:\Python\lib\subprocess.py", line 1307, in _execute_child hp, ht, pid, tid = _winapi.CreateProcess(executable, args, FileNotFoundError: [WinError 2] The system cannot find the file specified It is because you are on windows 10. I am looking for the interface to enter for windows 10 too ... did you found any solution? Yes: Here you are (old code that worked a long time ago^^) def get_current_wifi_windows(): network_information = str(subprocess.check_output(["netsh", "wlan", "show", "network"])) network_information = network_information.replace('\\r', '') network_information = network_information.replace("b' ", '') network_information = network_information.replace(":", '\n') network_information = network_information.replace("\\n", '\n') network_information = network_information.splitlines() ssid = network_information[6][1:] return ssid — You are receiving this because you commented. Reply to this email directly, view it on GitHub <https://gist.github.com/516de7dd0b707bc0b1b3#gistcomment-3804115>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AISMZY4GE7RAXIV6CMKLJWLTWMPOTANCNFSM4HMF7OQA> .

Hi, I am getting this error. What may be wrong?

[Cell(ssid=mySSID)]
Traceback (most recent call last):
  File "/home/pi/wifi_con.py", line 89, in <module>
    print(Connect('mySSID', '@key12345'))
  File "/home/pi/wifi_con.py", line 34, in Connect
    savedcell.activate()
  File "/home/pi/.local/lib/python3.9/site-packages/wifi/scheme.py", line 172, in activate
    subprocess.check_output(['/sbin/ifdown', self.interface], stderr=subprocess.STDOUT)
  File "/usr/lib/python3.9/subprocess.py", line 424, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.9/subprocess.py", line 528, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['/sbin/ifdown', 'wlan0']' returned non-zero exit status 1.

Guys…can you give me pls an answer of this question…my devise is not rooted..
Can this script run without any problems ???