Re: Using Prompt Toolkit to edit terminal inputs in a screen editor.

-- Carl Smith
[email protected]

On 19 July 2016 at 12:10, Thomas Kluyver <[email protected]> wrote:

> Ooh, nice find. If we can agree on a keyboard shortcut that people like
> for this, I'd like to enable it by default in IPython.
>
> On 18 July 2016 at 22:15, Carl Smith <[email protected]> wrote:
>
>> Prompt Toolkit allows you to open the current input in your favourite
>> editor, edit the code, and when you exit, you have the edited code in the
>> input buffer. This is different to %edit, and is really useful in practice.
>>
>> If you chuck this code in a startup file, it will create a keybinding for
>> the feature. This code uses Ctrl-N (because ne is currently my favourite
>> tool for these kinds of edits), but you can easily change the keybinding.
>>
>>     from prompt_toolkit.keys import Keys
>>
>>     ip = get_ipython()
>>
>>     def open_input_in_editor(event):
>>
>>         event.cli.current_buffer.tempfile_suffix = ".py"
>>         event.cli.current_buffer.open_in_editor(event.cli)
>>
>>     bind_key = ip.pt_cli.application.key_bindings_registry.add_binding
>>     bind_key(Keys.ControlN)(open_input_in_editor)
>>
>> It'd be nice to have a better way of setting the tempfile suffix, so it
>> isn't redundantly reassigned every time you use the function, but doing it
>> this way is fine for now. Removing that causes the tempfile to have no
>> suffix, so you wouldn't get language specific features like syntax
>> highlighting.
>>
>> Hope someone else finds this useful.
>>
>> Best,
>> -- Carl Smith
>> [email protected]
>>
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>>
>
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