From 52d79842f8bc41644b2c4c201d2c381ca3cc60c7 Mon Sep 17 00:00:00 2001
From: Konrad Hinsen <konrad.hinsen@fastmail.net>
Date: Sat, 25 Aug 2018 12:00:31 +0200
Subject: [PATCH] Get rid of Python-related warnings

---
 module2/ressources/rr_org/init.el  | 4 +++-
 module2/ressources/rr_org/init.org | 8 +++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/module2/ressources/rr_org/init.el b/module2/ressources/rr_org/init.el
index 01b7586..b31ada9 100644
--- a/module2/ressources/rr_org/init.el
+++ b/module2/ressources/rr_org/init.el
@@ -13,7 +13,7 @@
 (setq org-babel-python-command
       (if (memq system-type '(windows-nt ms-dos))
           "Python"
-        "python3"))
+        "python3 -q"))
 
 ;; If the Python and R executables are on your system's search path,
 ;; you should not have to modify anything here. If Emacs does not find
@@ -257,3 +257,5 @@ Entered on %U
 (add-hook 'org-babel-after-execute-hook 'org-display-inline-images) 
 (add-hook 'org-mode-hook 'org-display-inline-images)
 (add-hook 'org-mode-hook 'org-babel-result-hide-all)
+
+(setq python-shell-completion-native-enable nil)
diff --git a/module2/ressources/rr_org/init.org b/module2/ressources/rr_org/init.org
index 60c3c6d..cf259c1 100644
--- a/module2/ressources/rr_org/init.org
+++ b/module2/ressources/rr_org/init.org
@@ -36,7 +36,7 @@ document, simply =M-x org-babel-tangle=.
 (setq org-babel-python-command
       (if (memq system-type '(windows-nt ms-dos))
           "Python"
-        "python3"))
+        "python3 -q"))
 
 ;; If the Python and R executables are on your system's search path,
 ;; you should not have to modify anything here. If Emacs does not find
@@ -431,3 +431,9 @@ To use this type <B and then TAB. This comes with a session argument
 (add-hook 'org-mode-hook 'org-display-inline-images)
 (add-hook 'org-mode-hook 'org-babel-result-hide-all)
 #+end_src
+** Optimizing Python execution
+*** Don't use readline completion
+This often fails, yielding an ugly warning, and isn't of any use in Org-mode anyway
+#+begin_src emacs-lisp :tangle init.el
+(setq python-shell-completion-native-enable nil)
+#+end_src
-- 
2.18.1