Hi
I was wondering when it was worthwil to use context managers for
file. Consider this example:
def foo():
t = False
for line in file('/tmp/foo'):
if line.startswith('bar'):
t = True
break
return t
What would the benefit of using a context manager be here, if any?
E.g.:
def foo():
t = False
with file('/tmp/foo') as f:
for line in f:
if line.startswith('bar'):
t = True
break
return t
Personally I can't really see why the second case would be much
better, I've got used to just relying on the garbage collector... :-)
But what is the use case of a file as a context manager then? Is it
only useful if your file object is large and will stay in scope for a
long time?
Regards
Floris