Tests fail

[Serge3leo]

For Python 3.11, setuptools 68.0.0 and numpy 1.25.1:

• python setup.py test - completely fails;
• pytest - 1 failed, 25 passed, 1 warning:

________________________________ TestSumsq.runTest _________________________________

self = <test_util.TestSumsq testMethod=runTest>

    def runTest(self):
        n = 10
        x = np.sin(np.arange(n))
        normx = np.sum(x**2)
>       self.assertAlmostEqual(normx, sumsq(x), 'Wrong answer')
E       TypeError: 'str' object cannot be interpreted as an integer

dfogn/tests/test_util.py:41: TypeError

For Python 2.7.18, setuptools 44.0.0.post20200102 and numpy 1.16.5:

• python setup.py test - Test failed: <unittest.runner.TextTestResult run=26 errors=1 failures=0>:

======================================================================
ERROR: runTest (test_util.TestSumsq)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/leo/soft/valq/Yandex-Q/fortran_magic/dfogn-up/dfogn/tests/test_util.py", line 41, in runTest
    self.assertAlmostEqual(normx, sumsq(x), 'Wrong answer')
  File "/Users/leo/opt/anaconda3/envs/tfm27/lib/python2.7/unittest/case.py", line 555, in assertAlmostEqual
    if round(abs(second-first), places) == 0:
TypeError: 'unicode' object cannot be interpreted as an index