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Tab-completion in tutorial

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  Tab-completion in tutorial Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-01-21 10:07 +0000
    Re: Tab-completion in tutorial Peter Otten <__peter__@web.de> - 2012-01-21 14:25 +0100

#19185 — Tab-completion in tutorial

I'm reading the part of the tutorial that talks about tab-completion, and 
I think the docs are wrong.

http://docs.python.org/tutorial/interactive.html#key-bindings

The "more capable startup file" example given claims:

# Add auto-completion and a stored history file of commands to your Python
# interactive interpreter. Requires Python 2.0+, readline. Autocomplete is
# bound to the Esc key by default (you can change it - see readline docs).

but I have tried it, and it doesn't seem to actually bind autocomplete to 
anything.

Is this a documentation bug, or am I doing something wrong?



-- 
Steven

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#19187

Steven D'Aprano wrote:

> I'm reading the part of the tutorial that talks about tab-completion, and
> I think the docs are wrong.
> 
> http://docs.python.org/tutorial/interactive.html#key-bindings
> 
> The "more capable startup file" example given claims:
> 
> # Add auto-completion and a stored history file of commands to your Python
> # interactive interpreter. Requires Python 2.0+, readline. Autocomplete is
> # bound to the Esc key by default (you can change it - see readline docs).
> 
> but I have tried it, and it doesn't seem to actually bind autocomplete to
> anything.
> 
> Is this a documentation bug, or am I doing something wrong?

I've just tried it on Kubuntu's konsole. I see strange reactions:
After typing "imp" I have to hit ESC three times before "ort" is added, and 
afterwards a character is swallowed. However, I can get the expected 
behaviour after binding the key explicitly with

>>> import readline
>>> readline.parse_and_bind("esc: complete")

I'm not sure whether Python is to blame or Ubuntu; it may be an interference 
with konsole's key bindings.

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