Remove iwlist.py, we don't use it.

iwlist.py

-import re
-import subprocess
-
-cellNumberRe = re.compile(r"^Cell\s+(?P<cellnumber>.+)\s+-\s+Address:\s(?P<mac>.+)$")
-regexps = [
-    re.compile(r"^ESSID:\"(?P<essid>.*)\"$"),
-    re.compile(r"^Protocol:(?P<protocol>.+)$"),
-    re.compile(r"^Mode:(?P<mode>.+)$"),
-    re.compile(r"^Frequency:(?P<frequency>[\d.]+) (?P<frequency_units>.+) \(Channel (?P<channel>\d+)\)$"),
-    re.compile(r"^Encryption key:(?P<encryption>.+)$"),
-    re.compile(r"^Quality=(?P<signal_quality>\d+)/(?P<signal_total>\d+)\s+Signal level=(?P<signal_level_dBm>.+) d.+$"),
-    re.compile(r"^Signal level=(?P<signal_quality>\d+)/(?P<signal_total>\d+).*$"),
-]
-
-# Detect encryption type
-wpaRe = re.compile(r"IE:\ WPA\ Version\ 1$")
-wpa2Re = re.compile(r"IE:\ IEEE\ 802\.11i/WPA2\ Version\ 1$")
-
-# Runs the comnmand to scan the list of networks.
-# Must run as super user.
-# Does not specify a particular device, so will scan all network devices.
-def scan(interface='wlan0'):
-    cmd = ["iwlist", interface, "scan"]
-    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-    points = proc.stdout.read().decode('utf-8')
-    return points
-
-# Parses the response from the command "iwlist scan"
-def parse(content):
-    cells = []
-    lines = content.split('\n')
-    for line in lines:
-        line = line.strip()
-        cellNumber = cellNumberRe.search(line)
-        if cellNumber is not None:
-            cells.append(cellNumber.groupdict())
-            continue
-        wpa = wpaRe.search(line)
-        if wpa is not None :
-            cells[-1].update({'encryption':'wpa'})
-        wpa2 = wpa2Re.search(line)
-        if wpa2 is not None :
-            cells[-1].update({'encryption':'wpa2'}) 
-        for expression in regexps:
-            result = expression.search(line)
-            if result is not None:
-                if 'encryption' in result.groupdict() :
-                    if result.groupdict()['encryption'] == 'on' :
-                        cells[-1].update({'encryption': 'wep'})
-                    else :
-                        cells[-1].update({'encryption': 'off'})
-                else :
-                    cells[-1].update(result.groupdict())
-                continue
-    return cells