Reassignment¶

As we have mentioned previously, it is legal to make more than one assignment to the same variable.
A new assignment makes an existing variable refer to a new value (and stop referring to the old value).

bruce = 5
print(bruce)
bruce = 7
print(bruce)

(ch07_reassign1)

This is reassignment.

If a is equal to b now, it does not mean a will always equal to b.

a = 5
b = a    # after executing this line, a and b are now equal
print(a, b)
a = 3    # after executing this line, a and b are no longer equal
print(a, b)

(ch07_reassign2)