Make "cimport numpy" without import_array() safer by automatically calling it (GH-3524)

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/run/numpy_cimport_4.pyx b/tests/run/numpy_cimport_4.pyx
new file mode 100644
index 000000000..44e112054
--- /dev/null
+++ b/tests/run/numpy_cimport_4.pyx
@@ -0,0 +1,24 @@
+# mode: run
+# tag: warnings, numpy
+
+cimport numpy
+<void>numpy.import_array # dummy call should stop Cython auto-generating call to import_array
+
+cdef extern from *:
+    """
+    static void** _check_array_api(void) {
+        return PyArray_API; /* should be non NULL if initialized */
+    }
+    """
+    void** _check_array_api()
+
+def check_array_api():
+    """
+    >>> check_array_api()
+    True
+    """
+    return _check_array_api() == NULL # not initialized
+
+
+_WARNINGS = """
+"""