Python

#+BEGIN_SRC python :results output
  print "Hello, world!"
#+END_SRC

#+RESULTS:
: Hello, world!

#+TBLNAME: data_table
| a | 1 |
| b | 2 |
| c | 3 |

#+BEGIN_SRC python :var val=1 :var data=data_table
  return data[val]
#+END_SRC

#+RESULTS:
| b | 2 |