BUG: Remove errant flag meddling in .real and .imag

Fixes #11245

PyArray_NewFromDescr sets the flags just fine by itself.

2 files changed, 16 insertions, 1 deletions

diff --git a/numpy/core/src/multiarray/getset.c b/numpy/core/src/multiarray/getset.c
index 86e6e7a2f..d86f90a53 100644
--- a/numpy/core/src/multiarray/getset.c
+++ b/numpy/core/src/multiarray/getset.c
@@ -758,7 +758,6 @@ _get_part(PyArrayObject *self, int imag)
         Py_DECREF(ret);
         return NULL;
     }
-    PyArray_CLEARFLAGS(ret, NPY_ARRAY_C_CONTIGUOUS | NPY_ARRAY_F_CONTIGUOUS);
     return ret;
 }
 
diff --git a/numpy/core/tests/test_multiarray.py b/numpy/core/tests/test_multiarray.py
index a60f2cd92..3bc7e92c1 100644
--- a/numpy/core/tests/test_multiarray.py
+++ b/numpy/core/tests/test_multiarray.py
@@ -573,6 +573,22 @@ class TestZeroRank(object):
         x = np.array(2)
         assert_raises(ValueError, np.add, x, [1], x)
 
+    def test_real_imag(self):
+        # contiguity checks are for gh-11245
+        x = np.array(1j)
+        xr = x.real
+        xi = x.imag
+
+        assert_equal(xr, np.array(0))
+        assert_(type(xr) is np.ndarray)
+        assert_equal(xr.flags.contiguous, True)
+        assert_equal(xr.flags.f_contiguous, True)
+
+        assert_equal(xi, np.array(1))
+        assert_(type(xi) is np.ndarray)
+        assert_equal(xi.flags.contiguous, True)
+        assert_equal(xi.flags.f_contiguous, True)
+
 
 class TestScalarIndexing(object):
     def setup(self):