Address feedback

Signed-off-by: Marius Seritan <[email protected]>

Author: winding-lines

mojo/stdlib/test/python/test_python_cpython.mojo

@@ -20,16 +20,16 @@ from testing import assert_equal, assert_false, assert_raises, assert_true
 
 
 def test_PyObject_HasAttrString(mut python: Python):
-    var Cpython_env = python.impl._cpython
+    var cpython_env = python.impl.cpython()
 
     var the_object = PythonObject(0)
-    var result = Cpython_env[].PyObject_HasAttrString(
+    var result = cpython_env.PyObject_HasAttrString(
         the_object.py_object, "__contains__"
     )
     assert_equal(0, result)
 
     the_object = Python.list(1, 2, 3)
-    result = Cpython_env[].PyObject_HasAttrString(
+    result = cpython_env.PyObject_HasAttrString(
         the_object.py_object, "__contains__"
     )
     assert_equal(1, result)
@@ -48,19 +48,25 @@ def test_PyCapsule(mut python: Python):
     var result = cpython_env.PyCapsule_GetPointer(
         the_object.py_object, "some_name"
     )
-    var expected = UnsafePointer[NoneType]()
-    assert_equal(expected, result)
+    var expected_none = UnsafePointer[NoneType]()
+    assert_equal(expected_none, result)
 
     # Build a capsule.
     var capsule_impl = UnsafePointer[UInt64].alloc(1)
-    var capsule = Cpython_env[].PyCapsule_New(
+    var capsule = cpython_env.PyCapsule_New(
         capsule_impl.bitcast[NoneType](), "some_name", destructor
     )
-    var capsule_pointer = Cpython_env[].PyCapsule_GetPointer(
+    var capsule_pointer = cpython_env.PyCapsule_GetPointer(
         capsule, "some_name"
     )
     assert_equal(capsule_impl.bitcast[NoneType](), capsule_pointer)
 
+    # Use a different name.
+    result = cpython_env.PyCapsule_GetPointer(
+        capsule, "some_other_name"
+    )
+    assert_equal(expected_none, result)
+
 
 def main():
     # initializing Python instance calls init_python