Use python3 by default and fix babel chunks

module2/ressources/rr_org/init.el

@@ -155,6 +155,8 @@ Entered on %U
      ))
   (setq org-src-preserve-indentation t)
 
+(setq org-babel-python-command "python3")
+
 (add-to-list 'org-structure-template-alist
         '("s" "#+begin_src ?\n\n#+end_src" "<src lang=\"?\">\n\n</src>"))
 
@@ -174,10 +176,10 @@ Entered on %U
         '("p" "#+begin_src python :results output :exports both\n\n#+end_src" "<src lang=\"python\">\n\n</src>"))
 
 (add-to-list 'org-structure-template-alist
-        '("P" "#+begin_src python :results output :session *python* :exports both\n\n#+end_src" "<src lang=\"python\">\n\n</src>"))
+        '("P" "#+begin_src python :results output :session :exports both\n\n#+end_src" "<src lang=\"python\">\n\n</src>"))
 
 (add-to-list 'org-structure-template-alist
-        '("PP" "#+begin_src python :results file :var matplot_lib_filename=(org-babel-temp-file \"figure\" \".png\") :exports both \nimport matplotlib.pyplot as plt\n\nimport numpy\nx=numpy.linspace(-15,15)\nplt.figure(figsize=(10,5))\nplt.plot(x,numpy.cos(x)/x)\nplt.tight_layout()\n\nplt.savefig(matplot_lib_filename)\nreturn(matplot_lib_filename)\n#+end_src" "<src lang=\"python\">\n\n</src>"))
+        '("PP" "#+begin_src python :results output file :session :var matplot_lib_filename=(org-babel-temp-file \"figure\" \".png\") :exports both\nimport matplotlib.pyplot as plt\n\nimport numpy\nx=numpy.linspace(-15,15)\nplt.figure(figsize=(10,5))\nplt.plot(x,numpy.cos(x)/x)\nplt.tight_layout()\n\nplt.savefig(matplot_lib_filename)\nprint(matplot_lib_filename)\n#+end_src" "<src lang=\"python\">\n\n</src>"))
 
 (add-to-list 'org-structure-template-alist
         '("b" "#+begin_src shell :results output :exports both\n\n#+end_src" "<src lang=\"sh\">\n\n</src>"))

module2/ressources/rr_org/init.org

@@ -281,6 +281,11 @@ Additional shortcuts for navigating through org-mode documents:
   (setq org-src-preserve-indentation t)
 #+end_src
 
+** Python
+*** We use python3
+#+begin_src emacs-lisp :tangle init.el
+(setq org-babel-python-command "python3")
+#+end_src
 ** Adding source code blocks: 					       :LUKA:
 *** With capital letters:
 To use this type <s and then TAB
@@ -325,12 +330,12 @@ To use this type <p and then TAB
 
 #+begin_src emacs-lisp :tangle init.el
 (add-to-list 'org-structure-template-alist
-        '("P" "#+begin_src python :results output :session *python* :exports both\n\n#+end_src" "<src lang=\"python\">\n\n</src>"))
+        '("P" "#+begin_src python :results output :session :exports both\n\n#+end_src" "<src lang=\"python\">\n\n</src>"))
 #+end_src
 
 #+begin_src emacs-lisp :tangle init.el
 (add-to-list 'org-structure-template-alist
-        '("PP" "#+begin_src python :results file :var matplot_lib_filename=(org-babel-temp-file \"figure\" \".png\") :exports both \nimport matplotlib.pyplot as plt\n\nimport numpy\nx=numpy.linspace(-15,15)\nplt.figure(figsize=(10,5))\nplt.plot(x,numpy.cos(x)/x)\nplt.tight_layout()\n\nplt.savefig(matplot_lib_filename)\nreturn(matplot_lib_filename)\n#+end_src" "<src lang=\"python\">\n\n</src>"))
+        '("PP" "#+begin_src python :results output file :session :var matplot_lib_filename=(org-babel-temp-file \"figure\" \".png\") :exports both\nimport matplotlib.pyplot as plt\n\nimport numpy\nx=numpy.linspace(-15,15)\nplt.figure(figsize=(10,5))\nplt.plot(x,numpy.cos(x)/x)\nplt.tight_layout()\n\nplt.savefig(matplot_lib_filename)\nprint(matplot_lib_filename)\n#+end_src" "<src lang=\"python\">\n\n</src>"))
 #+end_src
 *** Bash "sh" code:
 To use this type <b and then TAB