Pass immutable and mutable value into function : Function Parameters « Function « Python

1. Python
2. Function
3. Function Parameters

Pass immutable and mutable value into function

def changer(x, y):     
    x = 2               # changes local name's value only
    y[0] = 'spam'       # changes shared object in place

X = 1
L = [1, 2]             
changer(X, L)          # pass immutable and mutable
print X, L                   


L = [1, 2]
changer(X, L[:])       # pass a copy

print X, L


           
       

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