use generator in my_text.py"

This commit is contained in:
Tarmo Sillajõe
2018-12-05 14:21:59 +02:00
parent 3b2be913ec
commit f1792c578f

28
my_text.py Normal file
View File

@@ -0,0 +1,28 @@
import re
from itertools import islice
"""
Read the text file to a list mylist where eache item is a row.
1. Find the start index and end index where lines must be extracted.
2.
[index1, index2,.. indexn]
new_list_1: mylist[:index1]
new_list_2: mylist[index1:index2]
...
new_list_3: mylist[indexn:]
"""
p = re.compile(r'^.*ladu2.*$')
indexes = []
def lines_generator(placeholder=0):
with open("tabel.txt", "rt") as f:
for line in islice(f,0,6 ):
yield(line)
placeholder=0
mylines = lines_generator()
print(next(mylines))