[Python-ideas] With-expression

Terry Reedy tjreedy at udel.edu
Wed Jan 14 12:20:08 CET 2009


Carl Johnson wrote:
>  From the department of doomed ideas:
> 
>      data = f.read() with open("file.txt") as f
> 
> Has the idea of a with-expression already been preemptively shot down?
> 
> I guess the objection is that the above could easily be rewritten as
> 
>     data = read_and_close("file.txt")
> 
> if one defines the appropriate function. The counter-objection is that 
> why do I need to write a micro-function when the with-statement already 
> does what I want, except it takes up two lines when it would still be 
> clear as one line. But then the counter-counter-objection is that you 
> can write
> 
>     with open("file.txt") as f: data = f.read()
> 
> today. To which the counter-counter-counter-objection is, yeah, but that 
> looks cluttered and ugly in a way that the first example doesn't... 
> Except the first example is sort of cluttered.
> 
> I dunno, what do other people think about this? Doomed or super-doomed?

Twisted and super-doomed.




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