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Floor division operator // returns incorrect result when left operand is Python int and right operand is dpnp_array #2720
Description
python-int // dpnp.array fails where as dpnp.array // python-int works fine!
Reproducer:
import dpnp
import numpy as np
arr_dpnp = dpnp.array([1])
arr_numpy = np.array([1])
result_dpnp = 256 // arr_dpnp[0]
result_numpy = 256 // arr_numpy[0]
print(f"dpnp result: {int(result_dpnp)}")
print(f"numpy result: {int(result_numpy)}")
print(f"expected: 256")
print(f"Status: {'✓ PASS' if int(result_dpnp) == 256 else '✗ FAIL'}")
print("\n" + "="*80)
print("Testing reversed operands: array[0] // 2")
print("="*80)
arr_dpnp = dpnp.array([100])
arr_numpy = np.array([100])
result_dpnp_rev = arr_dpnp[0] // 2
result_numpy_rev = arr_numpy[0] // 2
print(f"dpnp result: {int(result_dpnp_rev)}")
print(f"numpy result: {int(result_numpy_rev)}")
print(f"expected: 50")
print(f"Status: {'✓ PASS' if int(result_dpnp_rev) == 50 else '✗ FAIL'}")output:
$ python3 test_dpnp_operators.py
dpnp result: 0
numpy result: 256
expected: 256
Status: ✗ FAIL
================================================================================
Testing reversed operands: array[0] // 2
================================================================================
dpnp result: 50
numpy result: 50
expected: 50
Status: ✓ PASS
Activity
antonwolfy commentedon Jan 13, 2026
@abagusetty, thank you for the submitting the issue.
I notice the same issue recently and contributed the fix as a part of #2674. On the latest commit the tests are passed:
abagusetty commentedon Jan 13, 2026
@antonwolfy Thanks for the info. Updating the repo fixed it. Sorry about the false alarm. Closing this one.