Re: Bug: org-babel python with :results value sends function definition with a statement after a for loop to the shell incorrectly [9.3.6 (9.3.6-elpa @ /home/username/.emacs.d/elpa/org-9.3.6/)]

[Philip Blagoveschensky]

Hi Ian,

>Do you have the same issue if you aren't using a session?

If I run the following code block (this time I am using python 3, so 
there are parens in the print line)

#+begin_src python
def foobar():
    for i in range(5):
        pass
    print("hello world")
    return 3

return foobar()
#+end_src

I get

#+RESULTS:
: 3

so I know it worked fine.

But if I add session like this:

#+begin_src python :session bug_report
def foobar():
    for i in range(5):
        pass
    print("hello world")
    return 3

return foobar()
#+end_src

then in *bug_report* I get

>>> def foobar():
...     for i in range(5):
...         pass
...
>>>     print("hello world")
  File "<stdin>", line 1
    print("hello world")
    ^
IndentationError: unexpected indent
    return 3
>>>
  File "<stdin>", line 1
    return 3
    ^
IndentationError: unexpected indent
>>> return foobar()
>>>
  File "<stdin>", line 1
SyntaxError: 'return' outside function
>>> open('/tmp/babel-D0mRnD/python-CJ6UtT', 'w').write(str(_))
>>>
20
>>>
>>> 'org_babel_python_eoe'
>>> 'org_babel_python_eoe'
>>>

>Are you using tabs or spaces?

I used spaces. 4 spaces per indentation level, to be exact.

Also, FYI, as it might be relevant information, the shell buffer 
contents I posted above happen if the session has been created 
previously. If, instead, this is the first time I run some code in this 
session, then I also get another error - NameError (see below). Below 
you can see the contents of *bug_report* buffer if I run this code cell 
in a not-yet-existing session.

def foobar():
Python 3.8.2 | packaged by conda-forge | (default, Mar  5 2020, 17:11:00)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> ...     for i in range(5):
...         pass
...
>>>     print("hello world")
  File "<stdin>", line 1
    print("hello world")
    ^
IndentationError: unexpected indent    return 3

>>>
  File "<stdin>", line 1
    return 3
    ^
IndentationError: unexpected indent
>>> return foobar()
>>>
  File "<stdin>", line 1
SyntaxError: 'return' outside function
>>> open('/tmp/babel-D0mRnD/python-MsDjEk', 'w').write(str(_))
>>>
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name '_' is not defined
>>>
>>> 'org_babel_python_eoe'
>>> 'org_babel_python_eoe'
>>>

If you have a suggestion on how to debug this, feel free to tell.