I have one text file. I am parsing some data using regex. So open the file and read it and the parse it. But I don't want to read and parse data after some specific line in that text file. For example
file start here..
some data...
SPECIFIC LINE
some data....
Now I don't want to read file after SPECIFIC LINE... Is there any way to stop reading when that line reaches?
This is pretty straight forward, you can terminate a loop early with a break
statement.
filename = 'somefile.txt'
with open(filename, 'r') as input:
for line in input:
if 'indicator' in line:
break
Using with
creates a compound statement that ensures that upon entering and leaving the scope of the with
statement __enter__()
and __exit__()
will be called respectively. For the purpose of file reading this will prevent any dangling filehandles.
The break
statement tells the loop to terminate immediately.