Code mentioned in installation instruction is of older Python version.

[amirsultan]

Updated code as per Python version 3

from planout.experiment import SimpleExperiment
from planout.ops.random import *

class FirstExperiment(SimpleExperiment):
def assign(self, params, userid):
params.button_color = UniformChoice(choices=['#ff0000', '#00ff00'], unit=userid)
params.button_text = WeightedChoice(
choices=['Join now!', 'Sign up.'],
weights=[0.3, 0.7], unit=userid)

my_exp = FirstExperiment(userid=12)

parameters may be accessed via the . operator

print(my_exp.get('button_text'), my_exp.get('button_color'))

experiment objects include all input data

for i in range(6):
print(FirstExperiment(userid=i))