> On Aug 7, 2020, at 8:39 AM, William McCoy <wdm8...@gmail.com> wrote:
>
> This use of :prologue appeared to me to be very useful. But for some reason
> when I try it out it does not work for me. I just get a message that the
> code block produced no output and that 'np' is not defined. Just to check,
> when I put the import statements directly within my code block it works fine.
>
> I am running: Org mode version 9.3.7 (9.3.7-16-g521d7f-elpa
>
> Any idea what I'm doing wrong?
>
>
It is sometimes useful to use C-c C-v C-i to see what header args org has
detected for a source block. Misspelled words sometimes wreak havoc and
invisible characters can cause real pain.
Also, it helps to use C-c C-v C-v to to see the expanded code block. When I do
this with Kens' ECM, I get
import numpy as np; import os
print(np.__version__)
in the preview buffer.
HTH,
Chuck
> On 8/6/20 2:12 PM, Ken Mankoff wrote:
>> Actual example:
>>
>>
>> * Prologue test
>> :PROPERTIES:
>> :header-args:python+: :prologue "import numpy as np; import os"
>> :END:
>>
>> #+BEGIN_SRC python :results output
>> print(np.__version__)
>> #+END_SRC
>>
>> #+RESULTS:
>> : 1.18.4
>>
>>
>>
>>
>> On Wed, Aug 5, 2020 at 3:03 PM Ken Mankoff <mank...@gmail.com> wrote:
>> What about using :pre or :prologue and setting it at the header or document
>> level?
>>
>> Please excuse brevity. Sent from tiny pocket computer with
>> non-haptic-feedback keyboard.
>>
>> On Wed, Aug 5, 2020, 14:22 George Mauer <gma...@gmail.com> wrote:
>> Use case:
>>
>> I'm using ob-racket but this would apply just as well to a few other
>> workflows I have with python or js.
>>
>> I would like to write a helper function in a src block and then
>> automatically have access to it in other src blocks further down the
>> document. I don't really want a stateful session (nor does ob-racket support
>> sessions) so I essentially want the equivalent of automatically including it
>> everywhere so I don't have to type it out all the time (and have it screw up
>> syntax coloring/indentation).
>>
>> Is this currently possible? Does anyone have any ideas for how to extend
>> things so it is?
>
