API Core: fix pytype build

.gitignore

@@ -69,3 +69,4 @@ generated_python/
 cloud-bigtable-client/
 googleapis-pb/
 grpc_python_venv/
+pytype_output/

api_core/google/api_core/iam.py

@@ -243,6 +243,3 @@ def to_api_repr(self):
  del resource["bindings"]
 
  return resource
-
-
-collections_abc.MutableMapping.register(Policy)

api_core/setup.cfg

@@ -4,6 +4,6 @@ universal = 1
 [pytype]
 python_version = 3.6
 inputs =
- .
+ google/
 exclude =
  tests/

api_core/tests/unit/test_iam.py

@@ -90,9 +90,12 @@ def test_owners_setter(self):
  MEMBER = "user:phred@example.com"
  expected = set([MEMBER])
  policy = self._make_one()
- with warnings.catch_warnings():
-  warnings.simplefilter("always")
+
+ with warnings.catch_warnings(record=True) as warned:
  policy.owners = [MEMBER]
+
+ warning, = warned
+ assert warning.category is DeprecationWarning
  assert policy[OWNER_ROLE] == expected
 
  def test_editors_getter(self):
@@ -111,9 +114,12 @@ def test_editors_setter(self):
  MEMBER = "user:phred@example.com"
  expected = set([MEMBER])
  policy = self._make_one()
- with warnings.catch_warnings():
-  warnings.simplefilter("always")
+
+ with warnings.catch_warnings(record=True) as warned:
  policy.editors = [MEMBER]
+
+ warning, = warned
+ assert warning.category is DeprecationWarning
  assert policy[EDITOR_ROLE] == expected
 
  def test_viewers_getter(self):
@@ -132,9 +138,12 @@ def test_viewers_setter(self):
  MEMBER = "user:phred@example.com"
  expected = set([MEMBER])
  policy = self._make_one()
- with warnings.catch_warnings():
-  warnings.simplefilter("always")
+
+ with warnings.catch_warnings(record=True) as warned:
  policy.viewers = [MEMBER]
+
+ warning, = warned
+ assert warning.category is DeprecationWarning
  assert policy[VIEWER_ROLE] == expected
 
  def test_user(self):
@@ -240,17 +249,20 @@ def test_to_api_repr_binding_wo_members(self):
  assert policy.to_api_repr() == {}
 
  def test_to_api_repr_binding_w_duplicates(self):
+ import warnings
  from google.api_core.iam import OWNER_ROLE
 
  OWNER = "group:cloud-logs@google.com"
  policy = self._make_one()
- policy.owners = [OWNER, OWNER]
+ with warnings.catch_warnings(record=True):
+ policy.owners = [OWNER, OWNER]
  assert policy.to_api_repr() == {
  "bindings": [{"role": OWNER_ROLE, "members": [OWNER]}]
  }
 
  def test_to_api_repr_full(self):
  import operator
+ import warnings
  from google.api_core.iam import OWNER_ROLE, EDITOR_ROLE, VIEWER_ROLE
 
  OWNER1 = "group:cloud-logs@google.com"
@@ -265,9 +277,10 @@ def test_to_api_repr_full(self):
  {"role": VIEWER_ROLE, "members": [VIEWER1, VIEWER2]},
  ]
  policy = self._make_one("DEADBEEF", 17)
- policy.owners = [OWNER1, OWNER2]
- policy.editors = [EDITOR1, EDITOR2]
- policy.viewers = [VIEWER1, VIEWER2]
+ with warnings.catch_warnings(record=True):
+ policy.owners = [OWNER1, OWNER2]
+ policy.editors = [EDITOR1, EDITOR2]
+ policy.viewers = [VIEWER1, VIEWER2]
  resource = policy.to_api_repr()
  assert resource["etag"] == "DEADBEEF"
  assert resource["version"] == 17