[newbie]Is there a module for print object in a readable format?

[James Gan]

I want the object printed in a readable format. For example,
x =[a, b, c, [d e]] will be printed as:
x--a
  |_b
  |_c
  |___d
    |_e

I tried pickled, marshel. They do different work. Is there another 
module which do this kind of job?

Thanks!
James Gan
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