Hi! The following src block prints correctly if run in non-session mode, it does not print at all if the :session keyword is set. #+BEGIN_SRC python :results output org a, b = 0, 1 while b < 1000: a, b = b, a + b print(a, end=" ") #+END_SRC #+RESULTS: #+BEGIN_SRC org 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 #+END_SRC Is this expected behavior? Kind regards, Tarjei Bærland ------------------------------------------------------------------------ Emacs : GNU Emacs 25.0.50.1 (x86_64-w64-mingw32) of 2015-07-25 on KAEL Package: Org mode version 9.1.1 (9.1.1-6-gd40deb-elpa @ c:/Users/tabaa004/Dropbox/home/.emacs.d/elpa/org-20170925/) current state: ============== (setq org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-footnote-section "nil" org-speed-command-hook '(org-speed-command-activate org-babel-speed-command-activate) org-agenda-skip-timestamp-if-done t org-occur-hook '(org-first-headline-recenter) org-src-tab-acts-natively t org-metaup-hook '(org-babel-load-in-session-maybe) org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"] org-src-window-setup '(current-window) org-latex-format-inlinetask-function 'org-latex-format-inlinetask-default-function org-confirm-shell-link-function 'yes-or-no-p org-image-actual-width nil org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default org-export-with-section-numbers nil org-export-with-toc nil org-list-allow-alphabetical t org-agenda-skip-scheduled-if-done t org-agenda-custom-commands '(("h" "Agenda og hjemme" ((agenda "" ((org-agenda-span 14) (org-deadline-warning-days 14) (org-agenda-prefix-format "") (org-agenda-filter-preset (quote ("-jobb")))) ) ) ) ("j" "Jobb i dag og i morra" ((agenda "" ((org-agenda-span 2) (org-agenda-filter-preset (quote ("+jobb"))) (org-agenda-prefix-format "%t ")) ) (todo "TODO" ((org-agenda-filter-preset (quote ("+jobb"))) (org-agenda-max-entries 0)) ) ) ) ) org-latex-format-headline-function 'org-latex-format-headline-default-function org-agenda-include-diary t org-startup-indented t org-after-todo-state-change-hook '(org-clock-out-if-current) org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"] org-odt-format-headline-function 'org-odt-format-headline-default-function org-capture-mode-hook '(delete-other-windows) org-from-is-user-regexp nil org-html-postamble nil org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer) org-tags-column -94 org-agenda-before-write-hook '(org-agenda-add-entry-text) org-babel-pre-tangle-hook '(save-buffer) org-html-footnotes-section "