How do I get the currently installed tab completion function?

[Steven D'Aprano]

On Tue, 23 Jun 2015 12:02 pm, Chris Angelico wrote:

> On Tue, Jun 23, 2015 at 11:41 AM, Steven D'Aprano <steve at pearwood.info>
> wrote:
>> On Tue, 23 Jun 2015 11:23 am, Chris Angelico wrote:
>>
>>> On Tue, Jun 23, 2015 at 11:02 AM, Steven D'Aprano <steve at pearwood.info>
>>> wrote:
>>>> How do I get the currently installed completer?
>>>>
>>>> Solutions for any version of Python acceptable, but if they work all
>>>> the way back to 2.4 or older, even better.
>>>
>>> Whether there's a way to avoid the whole try/finally I can't say, but
>>> I just went looking for the obvious "readline.get_completer()", and it
>>> does seem to be there. Is there something I'm missing here?
>>
>> No, but there's obviously something *I'm* missing.
>>
>> I don't know how I missed that :-(
>>
>> It's especially embarrassing because it is available all the way back to
>> version 2.4, which is exactly what I need.
>>
>>
>> Sorry for the noise.
> 
> That's still only the lesser option, of course. Better would be a way
> to say raw_input("prompt? ", completer=filename_completer) but that's
> not an option, so it'd have to be an explicit readline.something()
> call. I can't find any way to actually ask the readline module to read
> a line, though, but given that my experience with that module is
> effectively zip, someone else may well be able to offer a superior
> suggestion.

The point is to have the completion available while the user types at the
prompt, not to apply it afterwards. So you have to install it as a
completer function under readline.




-- 
Steven