Include code snippet in org file

Question

I'm wanting to use org mode to write a technical book. I'm looking for a way to insert existing code from external file into a babel code block that would give nice formatting when exporting to pdf.

For example

#+BEGIN_SRC python "./code/foo.py" 
  # insert_line (45,50)
#+END_SRC

would then give me the equivalent of the following from line 45 to 50 in foo.py

#+BEGIN_SRC python
 def times_two(x):
   y = x*2
   return y

 print times_two(5)    
#+END_SRC

Is there anyway of doing this?

Answer 1

I think something like this could work:

#+include: "./code/foo.py" :lines "45-50"

Link to manual: http://orgmode.org/manual/Include-files.html