Make Python docstring insertion a bit easier

Now point is placed between the triple quotes, and an empty line is added after the docstring block.

configuration.org

@@ -783,9 +783,10 @@ to the beginning of the file."
         (open-line-above)
       (open-line-below))
     (insert "\"\"\"")
-    (open-line-below)
-    (insert "\"\"\"")
-    (open-line-above)))
+    (let ((point-pos (point)))
+      (open-line-below)
+      (insert "\"\"\"\n")
+      (goto-char point-pos))))
 #+END_SRC
 
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