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Alex Rivera
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X is a 2D array. I want to have a new variable Y that which has the same value as the array X . Moreover, any further manipulations with Y should not influence the value of the X. It seems to me so natural to use y = x . But it does not work with arrays. If I do it this way and then changes y, the x will be changed too. I found out that the problem can be solved like that: y = x[:] But it does not work with 2D array. For example: x = [[1,2],[3,4]] y = x[:] y[0][0]= 1000 print x returns [ [1000, 2], [3, 4] ] . It also does not help if I replace y=x[:] by y = x[:][:] . Does anybody know what is a proper and simple way to do it?
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