pyimport=True should work now on darwin without having to pre-import distutils...

pyimport=True should work now on darwin without having to pre-import distutils directly or via pyxbuild

pyximport/pyximport.py

@@ -351,6 +351,9 @@ class PyImporter(PyxImporter):
         self.uncompilable_modules = {}
         self.blocked_modules = ['Cython', 'pyxbuild', 'pyximport.pyxbuild',
                                 'distutils.extension', 'distutils.sysconfig']
+        # on OS X, distutils appears to shadow distutils.sysconfig
+        if os.name is 'posix' and os.uname()[0].lower().startswith('darwin'):
+            self.blocked_modules.append('distutils')
 
     def find_module(self, fullname, package_path=None):
         if fullname in sys.modules:

tests/pyximport/pyximport_pyimport_slow.srctree

+
+PYTHON -c "import pyimport_test; pyimport_test.test()"
+
+######## pyimport_test.py ########
+
+import os.path
+
+import pyximport
+
+
+pyximport.install(pyximport=False, pyimport=True,
+                  build_dir=os.path.join(os.path.dirname(__file__), "TEST_TMP"))
+
+def test():
+    import mymodule
+    assert mymodule.test_string == "TEST"
+    assert not mymodule.__file__.rstrip('oc').endswith('.py'), mymodule.__file__
+
+######## mymodule.py ########
+
+test_string = "TEST"