Question

PYTHON 3

question how many object will be created? how many references? how many will be garbage collected (GC)?

z = 1+2j print(z) type(z) z. real z.imag #z. real = 4 # No 'setter' needed #z.real = 4 Z * (3j) 1/z Z**-1 abs (z) z = 1/2 + 7j,

Answer 1

Python garbage collector deallocates the object if its reference count becomes zero.

# this increments the reference count to 1

# new object is created

z=1+2j

# none of the statement will create an object or reference or increment the reference count
# as these statements are just evaluations on the variable z. It is not modifying it in any way.

print(z)

type(z)

z.real

z.imag

z*(3j)

1/z

z**-1

abs(z)

# This statement decrements the reference count to 0 and hence GC is called to free the memory.

# And then a new object is created and stored in z

z=1/z+7j

Therefore 2 objects are created. The garbage collector is called once. And there were 2 references one at first line and another at the last line.

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