why x is changed in the following program?

[maurice.charbit at telecom-paristech.fr]

from numpy import random
x=random.randn(6)
y=x
y[0]=12
print x[0]



Maurice Charbit
Emeritus Prof.
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maurice.charbit at telecom-paristech.fr <mailto:maurice.charbit at telecom-paristech.fr>
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