Everything good about Python except GUI IDE?
Christian Gollwitzer
auriocus at gmx.de
Wed Mar 2 17:00:41 EST 2016
Am 02.03.16 um 09:20 schrieb Marko Rauhamaa:
> Chris Angelico <rosuav at gmail.com>:
>
>> On Wed, Mar 2, 2016 at 4:41 PM, Marko Rauhamaa <marko at pacujo.net> wrote:
>>> I was talking about JSON for the standard I/O, not the command-line
>>> arguments, as in:
>>>
>>> ps -ef | awk '/httpd/ { print $2 }'
>>>
>>> where "ps -ef" emits SPC-separated fields and LF-separated records, and
>>> awk parses and processes them.
>>
>> If you want to change that, you have to change the entire ecosystem,
>> not just the shell. You would have to teach every single program to
>> use a different structure.
>
> Correct. There could be translation utilities in the interim.
>
>> A lot of programs already do support NUL-separation - usually with a
>> -z parameter or something. But you won't be able to magically get them
>> all to use JSON. And I doubt it would be advantageous anyway.
>
> The advantages are obvious. Barely any programs do proper escaping, and
> security problems abound.
Have a look at PowerShell. It's not Python, and it is from MS - but it
works along those lines, passing .NET objects through the pipe. Owing to
that, instead of $2=="something" in the awk progra, you can address the
field(attribute) $2 by the correct name instead of a positional argument.
Christian
Caveat emptor: never used it myself
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