Sometimes, we want to read specific lines from a file by line number with Python.
In this article, we’ll look at how to read specific lines from a file by line number with Python.
How to read specific lines from a file by line number with Python?
To read specific lines from a file by line number with Python, we can use the enumerate function.
For instance, we write
with open("file.txt") as fp:
for i, line in enumerate(fp):
if i == 25:
# ...
elif i == 29:
# ...
elif i > 29:
break
to open the file.txt file with open.
And then we loop through the lines with the index and line with enumerate.
line has the content of each line and i is the line‘s index.
Then we can use if statements to check the index of the line and do what we want.
Conclusion
To read specific lines from a file by line number with Python, we can use the enumerate function.
