A fix for some(his) code my friend shared with me

librosa_tevo.py

import sys
import librosa
from numpy.linalg import norm
import librosa
from numpy.linalg import norm
from dtw import dtw
from random import shuffle

words = ['open','close']
chosen_word = words[:]
shuffle (chosen_word)

print(chosen_word[0])

if chosen_word[0] == 'open':
       prompt = 'tevo/tevinOpen.wav'
else :
       prompt = 'tevo/tevinClose.wav'

print(prompt)
y1, sr1 = librosa.load(prompt)
y2, sr2 = librosa.load('tevo/berylOpen.wav')

#Loading audio files
mfcc1 = librosa.feature.mfcc(y1,sr1)   #Computing MFCC value
mfcc2 = librosa.feature.mfcc(y2, sr2)   #Computing MFCC value

dist, cost, acc_cost, path = dtw(mfcc1.T, mfcc2.T, dist=lambda x, y: norm(x - y, ord=1))
print('Normalized distance between the two sounds:', dist)  

print(dist)

if dist <= 120.000000000:
    words = ['open','close']
    chosen_word = words[:]
    shuffle (chosen_word)
    print(chosen_word[0])
else:
    print(dist <= 120)
    sys.exit("ACCESS DENIED")
    
if (chosen_word[0]) == open :
       prompt = 'tevo/tevinOpen.wav'
else :
       prompt = 'tevo/tevinClose.wav'
y1, sr1 = librosa.load(prompt)
y2, sr2 = librosa.load('tevo/berylOpen.wav')

mfcc1 = librosa.feature.mfcc(y1,sr1)   #Computing MFCC value
mfcc2 = librosa.feature.mfcc(y2, sr2)   #Computing MFCC value
dist, cost, acc_cost, path = dtw(mfcc1.T, mfcc2.T, dist=lambda x, y: norm(x - y, ord=1))
print('Normalized distance between the two sounds:', dist)
if dist <=120.000000000:
        print('ACCESS GRANTED')
else :
        print('ACCESS DENIED')