The default for :results in scimax is output. You need to specify that you
want the value for your block.

This worked for me.

#+BEGIN_SRC python :results value file
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.rand(100)
y= np.cos(x)
plt.plot(x,y)
plt.savefig('test.png')
return 'test.png'
#+END_SRC

John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu


On Sat, May 26, 2018 at 7:22 AM, Doyley, Marvin M. <m.doyley@rochester.edu>
wrote:

> Hi there,
>
> The problem seem to be cause by scimax-org-babel-python.el.
> When I disable this works fine, but doing this disables asynchronous
> execution.
>
> John do you have any suggestions what is going on ?
>
> Cheers,
> M
>
>
> On May 26, 2018, at 9:16 AM, Doyley, Marvin M. <m.doyley@rochester.edu>
> wrote:
>
>
> Hi Thibault,
>
> thanks for the info. I will dig around my config
>
> cheers,
>
> M
>
>
>
> > Hi,
>
> > For what it's worth, I cannot reproduce it on Org mode version 9.1.>13
> >(release_9.1.13-763-g2621db) with -Q; the file is properly produced.
> >
> >I get the same error if I add the `session' header argument, maybe i>t is
> >set elsewhere?
>
> >Hope it helps.
>
> >thibault
>
> >Doyley, Marvin M. writes:
>
> >* Hi there,*
> >
> >* When I run the following code I get an error, does anybody know how to fix *
> >* this*
> >
> >* I am using the latest version of org-mode.*
> >
> >* Thanks,*
> >* M*
> >
> >
> >* #+BEGIN_SRC python :results file*
> >* import numpy as np*
> >* import matplotlib.pyplot as plt*
> >* import seaborn as sns*
> >* x = np.random.rand(100)*
> >* y= np.cos(x)*
> >* plt.plot(x,y)*
> >* plt.savefig('test.png')*
> >* return 'test.png'*
> >* #+END_SRC*
> >
> >* #+RESULTS:*
> >* [[file:  File "Org SRC", line 8*
> >*     return 'test.png'*
> >*     ^*
> >* SyntaxError: 'return' outside function*
> >* ]]*
>
>
>
> I will do some digging around in my config file.
>
>
>