Anonymous file closing
Peter Hansen
peter at engcorp.com
Fri Jun 11 07:06:38 EDT 2004
Sergey Krushinsky wrote:
> If I need to read a string from a file and use syntax like:
> text = open(filename, 'r').read()
> ...
> is the file object ever closed?
Duncan's response says it all, but here's the solution
if you don't like the uncertainty inherent in the above:
f = open(filename, 'r')
try:
text = f.read()
finally:
f.close()
That will ensure that the file is properly closed under
all versions of Python, all platforms...
For small scripts, I do what you did above. For anything
larger I take the more explicit approach.
-Peter
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