vc.distance takes forever

[jihun-im]

The code below take forever when view_list and view_list2 is different:

#! /usr/bin/env python

import sys
import os
import hashlib
from com.dtmilano.android.viewclient import ViewClient

reload(sys)
sys.setdefaultencoding('UTF8')

# PyDev sets PYTHONPATH, use it
try:
    for p in os.environ['PYTHONPATH'].split(':'):
        if not p in sys.path:
            sys.path.append(p)
except:
    pass

try:
    sys.path.append(os.path.join(os.environ['ANDROID_VIEW_CLIENT_HOME'], 'src'))
except:
    pass


def get_clickable_view_list(_view_list):
    result_view_list = []
    for each_view in _view_list:
        if each_view.isClickable():
            result_view_list.append(each_view)
    return result_view_list


def get_string_of_view_list(_view_list):
    string = ""
    for each_view in _view_list:
        string += str(each_view)
    return string


vc = ViewClient(*ViewClient.connectToDeviceOrExit(verbose=True))

view_list = vc.dump(sleep=0)
print(hashlib.sha1(get_string_of_view_list(view_list)).hexdigest())
for view in get_clickable_view_list(view_list):
    if "Chat" in view.getContentDescription():
        view.touch()

view_list2 = vc.dump(sleep=0)
print(hashlib.sha1(get_string_of_view_list(view_list2)).hexdigest())
print(get_string_of_view_list(view_list) == get_string_of_view_list(view_list2))

print(str(vc.distance(view_list, view_list2)))
# print(str(vc.hammingDistance(view_list, view_list2)))
# print(str(vc.levenshteinDistance(view_list, view_list2)))

If I CTRL+C the result is like this:

jihunimimac:examples jihun.im$ python playground.py
Connecting to a device with serialno=.* with a timeout of 60 secs...
Connected to device with serialno=.*
Actual device serialno=ENU7N15A30003855
6b766238ea1b51f2b18ac62150e61ba27be21ba7
578e476a82026b3e74a5bbefe17b5682c0e299f1
False
^CTraceback (most recent call last):
File "playground.py", line 58, in

File "/usr/local/lib/python2.7/site-packages/com/dtmilano/android/viewclient.py", line 4195, in distance
return ViewClient.__levenshteinDistance(s1, s2)/t
File "/usr/local/lib/python2.7/site-packages/com/dtmilano/android/viewclient.py", line 4296, in __levenshteinDistance
cost = 0 if s[i-1] == t_j else 1
KeyboardInterrupt

Additionally, hammingDistance and levenshteinDistance has following Error even though I gave 2 arguments!:

Traceback (most recent call last):
File "playground.py", line 53, in
print(str(vc.hammingDistance(view_list, view_list2)))
TypeError: hammingDistance() takes exactly 2 arguments (3 given)