Loop over the file to read lines:
with open('somefile') as openfileobject: for line in openfileobject: do_something()
File objects are iterable and yield lines until EOF. Using the file object as an iterable uses a buffer to ensure performant reads.
You can do the same with the stdin (no need to use raw_input()
:
import sys for line in sys.stdin: do_something()
To complete the picture, binary reads can be done with:
from functools import partial with open('somefile', 'rb') as openfileobject: for chunk in iter(partial(openfileobject.read, 1024), b''): do_something()
where chunk
will contain up to 1024 bytes at a time from the file, and iteration stops when openfileobject.read(1024)
starts returning empty byte strings.
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