Re: [Python-ideas] "try with" syntactic sugar

Feb. 27, 2009

      2009/2/26 Daniel Stutzbach <daniel@stutzbachenterprises.com>:
...
Around two-thirds of the time, whenever I use the wonderful new "with"
construct, it's enclosed in a "try-except" block, like this:
try:
   with something as f:
        many lines of code
except some_error:
    handle error
The "with" statement is great, but it results in the bulk of the code being
indented twice.  I'd like to propose a little syntactic sugar, the "try
with":
try with something as f:
    many lines of code
except some_error:
    handle error
It saves one line of vertical space, and gets rid of an indentation level
for the bulk of the code that rests within the "with" statement.  Thoughts?
Every compound statement could be made into an implicit try, i.e.

    <compound statement>:
        <suite1>
    except:
        <suite2>

would mean:

    try:
        <compound statement>:
            <suite1>
    except:
        <suite2>

So you could write:

    with something as f:
        many lines of code
    except some_error:
        handle error

-- 
Arnaud

Re: [Python-ideas] "try with" syntactic sugar

Arnaud Delobelle