tree 066f64e9f4cd7af30c84e33692d3193125ee4f3c
parent 4063937f848fc77a40185d6459f4ec099b58669c
author Boris Pavlovic <boris@pavlovic.me> 1403156780 +0400
committer Boris Pavlovic <boris@pavlovic.me> 1406986699 +0400

Don't use instances of complex types as a default value in args

This can produce unexpected buthurt (at least for me).
Cause python has super strange behavior in this case.

E.g.

def a(t=[]):
    t.append(1)
    print(t)

a() # prints [1]
a() # prints [1, 1]

Change-Id: Ie5287dd4c958d2d1ccaf98486b9522a2d2c18724