How can I handle the char immediately after its input, without waiting an endline?
Lie Ryan
lie.1296 at gmail.com
Sat Oct 25 13:57:19 EDT 2008
On Sat, 25 Oct 2008 09:04:01 +0000, Steven D'Aprano wrote:
> On Sat, 25 Oct 2008 08:36:32 +0000, Lie Ryan wrote:
>
>>>>> I want to write something that handle every char immediately after
>>>>> its input. Then tehe user don't need to type [RETURN] each time. How
>>>>> can I do this?
>>>>>
>>>>> Thanks in advance.
>>
>> Don't you think that getting a one-character from console is something
>> that many people do very often?
>
> No.
>
> I can't think of any modern apps that use one character commands like
> that. One character plus a modifier (ctrl or alt generally) perhaps, but
> even there, it's mostly used in GUI applications.
>
>
>> Do you think that all these platform
>> independent code should be moved to the interpreter level instead
>
> Absolutely not! There's no need for it to be given a keyword or special
> syntax.
By "interpreter level", I meant python's VM including its standard
libraries (i.e. anywhere but at end-programmer's level), I don't mean it
should have a keyword or special syntax or anything of that sort.
> But maybe there should be a standard library function for it.
>
>
>> (and
>> raises the appropriate error when the platform somehow cannot do
>> unbuffered input)? So python developer could do something like this:
>>
>> raw_input(bufferring = 0)
>
> No. Leave raw_input as it is. A better interface would be:
>
> import input_services
> c = input_services.get_char()
That would be fine as well.
>
> Eventually the module could grow other services as well.
>
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