Using Python version 3
I am using the code:
f = open("cinema.txt","r")
print(f.read())
This then goes on to open the cinema text file. This text file contains 50 lines containing 50 movie titles.
What I want to do is to be able to read for example line 5. I also want to be able to read for example lines 15-20. Can someone please advise what is the extra bit I need to add into the code. I have searched around on the Internet but I can't find an answer that work.
Use with open(), don't use open(), it's best practice.
data = []
with open("cinema.txt","r") as f:
data = f.readlines() # readlines() returns a list of items, each item is a line in your file
print(data[5]) # print line 5
for i in range(14, 19):
print(data[i])
You could try to use enumerate and then check for the line number: Note that i starts at i so i == 4 matches the 5th line.
with open('cinema.txt') as f:
for i, line in enumerate(f):
if i == 4:
print(line.strip())
if 14 < i < 19:
print(line.strip())
strip() it to remove the newline. I've adapted the answerYou can record line in the list and display the list slice.
f = open("cinema.txt")
lines = f.readlines()
a = 15
b = 20
print("\n".join(lines[a:b + 1]))
or
for i in range(a, b + 1):
print('line №' + str(i) + ': ' + lines[i])
