Sharing variables between source blocks without session

["Loris Bennett" <loris.bennett@fu-berlin.de>]

Hi,

I have a 'sh' source block which produces a table which I then want to
plot with a 'python' source block:

#+NAME: code;raw_data
#+HEADER: :var user="loris"
#+BEGIN_SRC sh
  ps -u loris -o etimes=
#+END_SRC                                                                                                                                                                                                        

#+NAME: tab;raw_data
#+RESULTS: code;raw_data...

#+HEADER: :var df=tab;raw_data
#+HEADER: :var user="loris"
#+BEGIN_SRC python :results file :var f="process_times.pdf"
  import numpy as np
  import matplotlib.pyplot as plt
  # flatten list
  x = [item for sublist in df for item in sublist]
  plt.hist(x, bins=10)
  plt.xlabel("time [s]")
  plt.ylabel("number of processes")
  plt.title("user: " + user)
  plt.savefig(f) 
  return f
#+END_SRC

How can I avoid having to declare the variable 'user' for both blocks?

Cheers,

Loris

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