Re: Can you automatically noweb include?

["Berry, Charles" via "General discussions about Org-mode." <emacs-orgmode@gnu.org>]

Good catch. Also it works if you put the property block at the very beginning of the file.

This sometimes helps:

M-x org-lint RET

which in this case reports "Incorrect contents for PROPERTIES drawer"

which is a bit cryptic IMO, but does point to any issue with the property.

HTH,

Chuck

> On Aug 7, 2020, at 2:18 PM, Thomas S. Dye <tsd@tsdye.online> wrote:
> 
> It works here if you remove the blank line between the headline and the PROPERTIES block.
> 
> William McCoy writes:
> 
>> Chuck,
>> 
>> Thanks very much for your response.  I didn't know about those options.  When I
>> use C-c C-v C-i, I get the following:
>> 
>> Lang: python
>> Properties:
>>    :header-args    nil
>>    :header-args:python     nil
>> Header Arguments:
>>    :cache          no
>>    :exports        code
>>    :hlines         no
>>    :noweb          no
>>    :results        output replace
>>    :session        none
>>    :tangle         no
>> 
>> And C-c C-v C-v, shows that the import statements in the header do not get
>> expanded into the code block.
>> 
>> So I am obviously doing something wrong.  There appear to be no typos or
>> misspellings and the org file containing the coded is exactly this:
>> 
>> * Test of prologue header
>> 
>> :PROPERTIES:
>> :header-args:python+: :prologue "import numpy as np; import os"
>> :END:
>> 
>> #+BEGIN_SRC python :results output
>> print(np.__version__)
>> #+END_SRC
>> 
>> #+RESULTS:
>> 
>> 
>> My init file has no org babel header arguments defined.
>> 
>> I am using C-c C-v C-b or C-c C-v C-s to evaluate and I get
>> 
>> "Code block produced no output." in the mini-buffer.
>> 
>> 
>> If I use C-c C-c directly on the code block itself I get:
>> 
>> Traceback (most recent call last):
>>  File "<stdin>", line 1, in <module>
>> NameError: name 'np' is not defined
>> 
>> Is there something else I need to do to get babel to recognize the header-args?
>> 
>> Thanks
>> 
>> 
>> On 8/7/20 12:51 PM, Berry, Charles wrote:
>>> 
>>>> On Aug 7, 2020, at 8:39 AM, William McCoy <wdm8588@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 <mankoff@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 <gmauer@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?
>>> 
> 
> 
> --
> Thomas S. Dye
> https://tsdye.online/tsdye