Error permission denied in python

Question

I was writing a code to try to connect to my wi-fi network using python. I used the following code:

from wi - fi
import Cell, Scheme

try:

cell = Cell.all('wlan0')

except:

  print(Exception)

passkey = 'pass'

try:

scheme = Scheme.for_cell('wlan0', 'nome da rede', cell, passkey)
scheme.save()
scheme.activate()

except:

  print(Exception)

This code receives an error in the first exception:

[Errno 13] Permission denied: '/sbin/iwlist'

I ran as root and in the first exception was sent another error code:

[Errno 2] No such file or directory: '/sbin/iwlist':  '/sbin/iwlist'