Thanks Nicolas.

I should have looked closer at ox-ipynb since the problem is in there.
It should make use of  `org-export-unravel-code' and it doesn't. Instead
it trims leading white spaces from the src code.
I'll report it to the scimax github repository.

Best regards,

2017-05-17 15:08 GMT+02:00 Nicolas Goaziou <mail@nicolasgoaziou.fr>:

> Fabrice Popineau <fabrice.popineau@gmail.com> writes:
>
> > I mean that in the Org buffer I have for example :
> >
> > #+BEGIN_SRC ipython :session
> >   def fact(n):
> >       if n == 1:
> >           return 1
> >       else:
> >           return n * fact(n-1)
> > #+END_SRC
> >
> > That is, there is a 2 spaces indentation of the whole code block, and the
> > code block is properly indented.
> > When I export it, I get :
> >
> > def fact(n):
> >       if n == 1:
> >           return 1
> >       else:
> >           return n * fact(n-1)
>
> FWIW I cannot reproduce it. You may want to debug
> `org-export-unravel-code', `org-export-format-code' or
> `org-export-format-code-default'.
>
> Regards,
>