reading each line of a text file preceded by line numbers

Question

demoFile=open("lambpoem.txt","r")
for i in demoFile:
    print(i)

how do I modify the code in order for it to include the line number before the text in that line?

What is the issue, exactly? Have you tried anything, done any research? Stack Overflow is not a free code writing service. See: [tour], [ask], [help/on-topic], https://meta.stackoverflow.com/questions/261592/how-much-research-effort-is-expected-of-stack-overflow-users. — AMC, Feb 23 '20 at 18:35
Not only is the question subpar, the accepted answer is less than ideal. — AMC, Feb 23 '20 at 18:35
Does this answer your question? [Get Line Number of certain phrase in file Python](https://stackoverflow.com/questions/3961265/get-line-number-of-certain-phrase-in-file-python) — AMC, Feb 23 '20 at 18:36

score 3 · Answer 1 · answered Feb 23 '20 at 17:42

3

Here is an example with enumerate

with open('lambpoem.txt') as f:
    for line in enumerate(f):
        print(f'{line[0] + 1}. {line[1]}')

answered Feb 23 '20 at 17:42

Dmitry Shevchenko

score 0 · Accepted Answer · answered Feb 23 '20 at 17:41

0

The way that I do this but this is certainly not the only way would to do so.

with open('File.txt', 'r') as f:
    files = f.readlines()
for i in range(len(files)):
    print(i, files[i])

answered Feb 23 '20 at 17:41

Ben

1) Why name a variable holds a list of lines `files` ? 2) The `mode='r'` parameter to `open()` is unnecessary. 3) Why not use `enumerate()` ? – AMC Feb 23 '20 at 18:38
@AMC 1) To make it look simpler for a new coder 2) I find it makes my code look clearer and doesn't effect speed 3) Same as the reason for 1 – Ben Feb 23 '20 at 18:41

2 Answers2