save_me

import numpy as np
import scipy as sc
import re
from collections import Counter

with open('sentences.txt') as f:
    wlist = [None]
    n = 0
    for line in f:
        n += 1
        line = line.lower()
        line = re.split('[^a-z]', line)
        x = list(filter(lambda x: x != '', line))
        wlist += x

    uwords = set(wlist)
    d = len(uwords)
    uwords = list(uwords)
    count = 0
    dicti = {}
    for uw in uwords:
        if(count != d-1):
            dicti[count] = uw
            count += 1

    arr = np.eye(n, d)
    i = 0
    for line in f:
        line = line.lower()
        line = re.split('[^a-z]', line)
        x = list(filter(lambda x: x != '', line))
        c = Counter(x)
        for j in range(d):
            arr[i][j] = c[dicti[j]]
        i+=1