context managers inline?

[Steven D'Aprano]

On Fri, 11 Mar 2016 05:33 am, Neal Becker wrote:

> Is there a way to ensure resource cleanup with a construct such as:
> 
> x = load (open ('my file', 'rb))
> 
> Is there a way to ensure this file gets closed?

Depends on what you mean by "ensure". Have load() call the file's close
method may be good enough.

If you want a better guarantee, you need either a with block:

with open(...) as f:
    ...


or a finally block:

try:
    ...
finally:
    ...


There is no expression-based version of these.



-- 
Steven