diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index b724bada..daf3f391 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -11,15 +11,6 @@ branchProtectionRules:
     # No Kokoro:  the following are Github actions
     - 'lint'
     - 'mypy'
-    - 'unit_grpc_gcp-3.7'
-    - 'unit_grpc_gcp-3.8'
-    - 'unit_grpc_gcp-3.9'
-    - 'unit_grpc_gcp-3.10'
-    - 'unit_grpc_gcp-3.11'
-    - 'unit_grpc_gcp-3.12'
-    - 'unit_grpc_gcp-3.13'
-    - 'unit_grpc_gcp-3.14'
-    - 'unit-3.7'
     - 'unit-3.8'
     - 'unit-3.9'
     - 'unit-3.10'
@@ -32,7 +23,6 @@ branchProtectionRules:
     - 'unit_wo_grpc-3.12'
     - 'unit_wo_grpc-3.13'
     - 'unit_wo_grpc-3.14'
-    - 'unit_w_prerelease_deps-3.7'
     - 'unit_w_prerelease_deps-3.8'
     - 'unit_w_prerelease_deps-3.9'
     - 'unit_w_prerelease_deps-3.10'
@@ -40,7 +30,6 @@ branchProtectionRules:
     - 'unit_w_prerelease_deps-3.12'
     - 'unit_w_prerelease_deps-3.13'
     - 'unit_w_prerelease_deps-3.14'
-    - 'unit_w_async_rest_extra-3.7'
     - 'unit_w_async_rest_extra-3.8'
     - 'unit_w_async_rest_extra-3.9'
     - 'unit_w_async_rest_extra-3.10'
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index f260a6a5..2b797e37 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -14,9 +14,8 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        option: ["", "_grpc_gcp", "_wo_grpc", "_w_prerelease_deps", "_w_async_rest_extra"]
+        option: ["", "_wo_grpc", "_w_prerelease_deps", "_w_async_rest_extra"]
         python:
-          - "3.7"
           - "3.8"
           - "3.9"
           - "3.10"
@@ -25,8 +24,6 @@ jobs:
           - "3.13"
           - "3.14"
         exclude:
-          - option: "_wo_grpc"
-            python: 3.7
           - option: "_wo_grpc"
             python: 3.8
           - option: "_wo_grpc"
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 1a1f608b..57f47416 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -21,7 +21,7 @@ In order to add a feature:
   documentation.
 
 - The feature must work fully on the following CPython versions:
-  3.7, 3.8, 3.9, 3.10, 3.11, 3.12 and 3.13 on both UNIX and Windows.
+  3.8, 3.9, 3.10, 3.11, 3.12 and 3.13 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -197,7 +197,6 @@ Supported Python Versions
 
 We support:
 
--  `Python 3.7`_
 -  `Python 3.8`_
 -  `Python 3.9`_
 -  `Python 3.10`_
@@ -205,7 +204,6 @@ We support:
 -  `Python 3.12`_
 -  `Python 3.13`_
 
-.. _Python 3.7: https://docs.python.org/3.7/
 .. _Python 3.8: https://docs.python.org/3.8/
 .. _Python 3.9: https://docs.python.org/3.9/
 .. _Python 3.10: https://docs.python.org/3.10/
diff --git a/README.rst b/README.rst
index 58ae26cb..8322a295 100644
--- a/README.rst
+++ b/README.rst
@@ -16,7 +16,7 @@ common helpers used by all Google API clients. For more information, see the
 
 Supported Python Versions
 -------------------------
-Python >= 3.7
+Python >= 3.8
 
 
 Unsupported Python Versions
diff --git a/google/api_core/grpc_helpers.py b/google/api_core/grpc_helpers.py
index 07963024..ec137ad9 100644
--- a/google/api_core/grpc_helpers.py
+++ b/google/api_core/grpc_helpers.py
@@ -17,7 +17,6 @@
 
 import collections
 import functools
-import warnings
 
 import grpc
 
@@ -26,27 +25,6 @@
 import google.auth.credentials
 import google.auth.transport.grpc
 import google.auth.transport.requests
-import google.protobuf
-
-PROTOBUF_VERSION = google.protobuf.__version__
-
-# The grpcio-gcp package only has support for protobuf < 4
-if PROTOBUF_VERSION[0:2] == "3.":  # pragma: NO COVER
-    try:
-        import grpc_gcp
-
-        warnings.warn(
-            """Support for grpcio-gcp is deprecated. This feature will be
-            removed from `google-api-core` after January 1, 2024. If you need to
-            continue to use this feature, please pin to a specific version of
-            `google-api-core`.""",
-            DeprecationWarning,
-        )
-        HAS_GRPC_GCP = True
-    except ImportError:
-        HAS_GRPC_GCP = False
-else:
-    HAS_GRPC_GCP = False
 
 
 # The list of gRPC Callable interfaces that return iterators.
@@ -389,21 +367,6 @@ def create_channel(
         quota_project_id=quota_project_id,
         default_host=default_host,
     )
-
-    # Note that grpcio-gcp is deprecated
-    if HAS_GRPC_GCP:  # pragma: NO COVER
-        if compression is not None and compression != grpc.Compression.NoCompression:
-            warnings.warn(
-                "The `compression` argument is ignored for grpc_gcp.secure_channel creation.",
-                DeprecationWarning,
-            )
-        if attempt_direct_path:
-            warnings.warn(
-                """The `attempt_direct_path` argument is ignored for grpc_gcp.secure_channel creation.""",
-                DeprecationWarning,
-            )
-        return grpc_gcp.secure_channel(target, composite_credentials, **kwargs)
-
     if attempt_direct_path:
         target = _modify_target_for_direct_path(target)
 
diff --git a/google/api_core/grpc_helpers_async.py b/google/api_core/grpc_helpers_async.py
index af661430..c126a0cd 100644
--- a/google/api_core/grpc_helpers_async.py
+++ b/google/api_core/grpc_helpers_async.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""AsyncIO helpers for :mod:`grpc` supporting 3.7+.
+"""AsyncIO helpers for :mod:`grpc` supporting 3.8+.
 
 Please combine more detailed docstring in grpc_helpers.py to use following
 functions. This module is implementing the same surface with AsyncIO semantics.
@@ -219,7 +219,7 @@ def create_channel(
     default_host=None,
     compression=None,
     attempt_direct_path: Optional[bool] = False,
-    **kwargs
+    **kwargs,
 ):
     """Create an AsyncIO secure channel with credentials.
 
diff --git a/google/api_core/operation.py b/google/api_core/operation.py
index 4b9c9a58..5206243a 100644
--- a/google/api_core/operation.py
+++ b/google/api_core/operation.py
@@ -78,7 +78,7 @@ def __init__(
         result_type,
         metadata_type=None,
         polling=polling.DEFAULT_POLLING,
-        **kwargs
+        **kwargs,
     ):
         super(Operation, self).__init__(polling=polling, **kwargs)
         self._operation = operation
diff --git a/google/api_core/operations_v1/pagers.py b/google/api_core/operations_v1/pagers.py
index 132f1c66..76efd594 100644
--- a/google/api_core/operations_v1/pagers.py
+++ b/google/api_core/operations_v1/pagers.py
@@ -48,7 +48,7 @@ def __init__(
         request: operations_pb2.ListOperationsRequest,
         response: operations_pb2.ListOperationsResponse,
         *,
-        metadata: Sequence[Tuple[str, str]] = ()
+        metadata: Sequence[Tuple[str, str]] = (),
     ):
         super().__init__(
             method=method, request=request, response=response, metadata=metadata
diff --git a/google/api_core/operations_v1/pagers_async.py b/google/api_core/operations_v1/pagers_async.py
index e2909dd5..4bb7f8c7 100644
--- a/google/api_core/operations_v1/pagers_async.py
+++ b/google/api_core/operations_v1/pagers_async.py
@@ -48,7 +48,7 @@ def __init__(
         request: operations_pb2.ListOperationsRequest,
         response: operations_pb2.ListOperationsResponse,
         *,
-        metadata: Sequence[Tuple[str, str]] = ()
+        metadata: Sequence[Tuple[str, str]] = (),
     ):
         super().__init__(
             method=method, request=request, response=response, metadata=metadata
diff --git a/google/api_core/operations_v1/pagers_base.py b/google/api_core/operations_v1/pagers_base.py
index 24caf74f..5ef8384e 100644
--- a/google/api_core/operations_v1/pagers_base.py
+++ b/google/api_core/operations_v1/pagers_base.py
@@ -47,7 +47,7 @@ def __init__(
         request: operations_pb2.ListOperationsRequest,
         response: operations_pb2.ListOperationsResponse,
         *,
-        metadata: Sequence[Tuple[str, str]] = ()
+        metadata: Sequence[Tuple[str, str]] = (),
     ):
         """Instantiate the pager.
 
diff --git a/google/api_core/operations_v1/transports/base.py b/google/api_core/operations_v1/transports/base.py
index 71764c1e..dcd27485 100644
--- a/google/api_core/operations_v1/transports/base.py
+++ b/google/api_core/operations_v1/transports/base.py
@@ -235,8 +235,8 @@ def _convert_protobuf_message_to_dict(
             A dict representation of the protocol buffer message.
         """
         # TODO(https://github.com/googleapis/python-api-core/issues/643): For backwards compatibility
-        # with protobuf 3.x 4.x, Remove once support for protobuf 3.x and 4.x is dropped.
-        if PROTOBUF_VERSION[0:2] in ["3.", "4."]:
+        # with protobuf 4.x, Remove once support for protobuf 4.x is dropped.
+        if PROTOBUF_VERSION[0:2] == "4.":
             result = json_format.MessageToDict(
                 message,
                 preserving_proto_field_name=True,
diff --git a/noxfile.py b/noxfile.py
index ac21330e..0af0b38b 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -28,7 +28,7 @@
 # Black and flake8 clash on the syntax for ignoring flake8's F401 in this file.
 BLACK_EXCLUDES = ["--exclude", "^/google/api_core/operations_v1/__init__.py"]
 
-PYTHON_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
 DEFAULT_PYTHON_VERSION = "3.10"
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
@@ -36,7 +36,6 @@
 # 'docfx' is excluded since it only needs to run in 'docs-presubmit'
 nox.options.sessions = [
     "unit",
-    "unit_grpc_gcp",
     "unit_wo_grpc",
     "unit_w_prerelease_deps",
     "unit_w_async_rest_extra",
@@ -124,7 +123,6 @@ def default(session, install_grpc=True, prerelease=False, install_async_rest=Fal
 
     session.install(
         "dataclasses",
-        "mock; python_version=='3.7'",
         "pytest",
         "pytest-cov",
         "pytest-xdist",
@@ -225,25 +223,6 @@ def unit_w_prerelease_deps(session):
     default(session, prerelease=True)
 
 
-@nox.session(python=PYTHON_VERSIONS)
-def unit_grpc_gcp(session):
-    """
-    Run the unit test suite with grpcio-gcp installed.
-    `grpcio-gcp` doesn't support protobuf 4+.
-    Remove extra `grpcgcp` when protobuf 3.x is dropped.
-    https://github.com/googleapis/python-api-core/issues/594
-    """
-    constraints_path = str(
-        CURRENT_DIRECTORY / "testing" / f"constraints-{session.python}.txt"
-    )
-    # Install grpcio-gcp
-    session.install("-e", ".[grpcgcp]", "-c", constraints_path)
-    # Install protobuf < 4.0.0
-    session.install("protobuf<4.0.0")
-
-    default(session)
-
-
 @nox.session(python=PYTHON_VERSIONS)
 def unit_wo_grpc(session):
     """Run the unit test suite w/o grpcio installed"""
@@ -280,7 +259,6 @@ def mypy(session):
         "types-requests",
         "types-protobuf",
         "types-dataclasses",
-        "types-mock; python_version=='3.7'",
     )
     session.run("mypy", "google", "tests")
 
diff --git a/pyproject.toml b/pyproject.toml
index da404ab3..54a65cb3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ build-backend = "setuptools.build_meta"
 name = "google-api-core"
 authors = [{ name = "Google LLC", email = "googleapis-packages@google.com" }]
 license = { text = "Apache 2.0" }
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 readme = "README.rst"
 description = "Google API client core library"
 classifiers = [
@@ -33,7 +33,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
@@ -44,8 +43,8 @@ classifiers = [
   "Topic :: Internet",
 ]
 dependencies = [
-  "googleapis-common-protos >= 1.56.2, < 2.0.0",
-  "protobuf >= 3.19.5, < 7.0.0, != 3.20.0, != 3.20.1, != 4.21.0, != 4.21.1, != 4.21.2, != 4.21.3, != 4.21.4, != 4.21.5",
+  "googleapis-common-protos >= 1.63.2, < 2.0.0",
+  "protobuf >= 4.25.8, < 7.0.0",
   "proto-plus >= 1.22.3, < 2.0.0",
   "proto-plus >= 1.25.0, < 2.0.0; python_version >= '3.13'",
   "google-auth >= 2.14.1, < 3.0.0",
@@ -65,8 +64,6 @@ grpc = [
   "grpcio-status >= 1.33.2, < 2.0.0",
   "grpcio-status >= 1.49.1, < 2.0.0; python_version >= '3.11'",
 ]
-grpcgcp = ["grpcio-gcp >= 0.2.2, < 1.0.0"]
-grpcio-gcp = ["grpcio-gcp >= 0.2.2, < 1.0.0"]
 
 [tool.setuptools.dynamic]
 version = { attr = "google.api_core.version.__version__" }
@@ -77,7 +74,7 @@ version = { attr = "google.api_core.version.__version__" }
 include = ["google*"]
 
 [tool.mypy]
-python_version = "3.7"
+python_version = "3.8"
 namespace_packages = true
 ignore_missing_imports = true
 
@@ -89,9 +86,6 @@ filterwarnings = [
   "ignore:.*The --rsyncdir command line argument and rsyncdirs config variable are deprecated:DeprecationWarning",
   # Remove once https://github.com/protocolbuffers/protobuf/issues/12186 is fixed
   "ignore:.*custom tp_new.*in Python 3.14:DeprecationWarning",
-  # Remove once support for python 3.7 is dropped
-  # This warning only appears when using python 3.7
-  "ignore:.*Using or importing the ABCs from.*collections:DeprecationWarning",
   # Remove once support for grpcio-gcp is deprecated
   # See https://github.com/googleapis/python-api-core/blob/42e8b6e6f426cab749b34906529e8aaf3f133d75/google/api_core/grpc_helpers.py#L39-L45
   "ignore:.*Support for grpcio-gcp is deprecated:DeprecationWarning",
@@ -102,6 +96,4 @@ filterwarnings = [
   "ignore:.*pkg_resources is deprecated as an API:DeprecationWarning",
   # Remove once https://github.com/grpc/grpc/issues/35086 is fixed (and version newer than 1.60.0 is published)
   "ignore:There is no current event loop:DeprecationWarning",
-  # Remove after support for Python 3.7 is dropped
-  "ignore:After January 1, 2024, new releases of this library will drop support for Python 3.7:DeprecationWarning",
 ]
diff --git a/setup.cfg b/setup.cfg
index f7b5a3bc..3b1d1703 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [pytype]
-python_version = 3.7
+python_version = 3.8
 inputs =
     google/
 exclude =
diff --git a/testing/constraints-3.7.txt b/testing/constraints-3.7.txt
deleted file mode 100644
index 4ce1c899..00000000
--- a/testing/constraints-3.7.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-# This constraints file is used to check that lower bounds
-# are correct in setup.py
-# List *all* library dependencies and extras in this file.
-# Pin the version to the lower bound.
-#
-# e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
-# Then this file should have foo==1.14.0
-googleapis-common-protos==1.56.2
-protobuf==3.19.5
-google-auth==2.14.1
-requests==2.18.0
-grpcio==1.33.2
-grpcio-status==1.33.2
-grpcio-gcp==0.2.2
-proto-plus==1.22.3
diff --git a/testing/constraints-3.8.txt b/testing/constraints-3.8.txt
index 1b5bb58e..c2abb239 100644
--- a/testing/constraints-3.8.txt
+++ b/testing/constraints-3.8.txt
@@ -1,2 +1,14 @@
-googleapis-common-protos==1.56.3
-protobuf==4.21.6
\ No newline at end of file
+# This constraints file is used to check that lower bounds
+# are correct in setup.py
+# List *all* library dependencies and extras in this file.
+# Pin the version to the lower bound.
+#
+# e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
+# Then this file should have foo==1.14.0
+googleapis-common-protos==1.63.2
+protobuf==4.25.8
+google-auth==2.14.1
+requests==2.18.0
+grpcio==1.33.2
+grpcio-status==1.33.2
+proto-plus==1.22.3
\ No newline at end of file
diff --git a/testing/constraints-async-rest-3.7.txt b/testing/constraints-async-rest-3.8.txt
similarity index 85%
rename from testing/constraints-async-rest-3.7.txt
rename to testing/constraints-async-rest-3.8.txt
index 7aedeb1c..d6f92392 100644
--- a/testing/constraints-async-rest-3.7.txt
+++ b/testing/constraints-async-rest-3.8.txt
@@ -5,13 +5,12 @@
 #
 # e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
 # Then this file should have foo==1.14.0
-googleapis-common-protos==1.56.2
-protobuf==3.19.5
+googleapis-common-protos==1.63.2
+protobuf==4.25.8
 google-auth==2.35.0
 # from google-auth[aiohttp]
 aiohttp==3.6.2
 requests==2.20.0
 grpcio==1.33.2
 grpcio-status==1.33.2
-grpcio-gcp==0.2.2
 proto-plus==1.22.3
diff --git a/tests/asyncio/test_rest_streaming_async.py b/tests/asyncio/test_rest_streaming_async.py
index c9caa2b1..13549c7f 100644
--- a/tests/asyncio/test_rest_streaming_async.py
+++ b/tests/asyncio/test_rest_streaming_async.py
@@ -292,7 +292,6 @@ async def test_next_escaped_characters_in_string(
 @pytest.mark.asyncio
 @pytest.mark.parametrize("response_type", [EchoResponse, httpbody_pb2.HttpBody])
 async def test_next_not_array(response_type):
-
     data = '{"hello": 0}'
     with mock.patch.object(
         ResponseMock, "content", return_value=mock_async_gen(data)
@@ -352,7 +351,6 @@ async def test_check_buffer(response_type, return_value):
 @pytest.mark.asyncio
 @pytest.mark.parametrize("response_type", [EchoResponse, httpbody_pb2.HttpBody])
 async def test_next_html(response_type):
-
     data = "<!DOCTYPE html><html></html>"
     with mock.patch.object(
         ResponseMock, "content", return_value=mock_async_gen(data)
diff --git a/tests/unit/operations_v1/test_operations_rest_client.py b/tests/unit/operations_v1/test_operations_rest_client.py
index d1f6e0eb..87701c2a 100644
--- a/tests/unit/operations_v1/test_operations_rest_client.py
+++ b/tests/unit/operations_v1/test_operations_rest_client.py
@@ -225,7 +225,6 @@ def test_operations_client_service_account_always_use_jwt(transport_class):
     PYPARAM_CLIENT,
 )
 def test_operations_client_from_service_account_file(client_class):
-
     if "async" in str(client_class):
         # TODO(): Add support for service account creds to async REST transport.
         with pytest.raises(NotImplementedError):
@@ -1045,7 +1044,6 @@ async def test_cancel_operation_rest_failure_async():
     PYPARAM_CLIENT_TRANSPORT_CREDENTIALS,
 )
 def test_credentials_transport_error(client_class, transport_class, credentials):
-
     # It is an error to provide credentials and a transport instance.
     transport = transport_class(credentials=credentials)
     with pytest.raises(ValueError):
diff --git a/tests/unit/test_client_logging.py b/tests/unit/test_client_logging.py
index b3b0b5c8..c73b269f 100644
--- a/tests/unit/test_client_logging.py
+++ b/tests/unit/test_client_logging.py
@@ -88,7 +88,6 @@ def test_setup_logging_w_incorrect_scope():
 
 
 def test_initialize_logging():
-
     with mock.patch("os.getenv", return_value="foogle.bar"):
         with mock.patch("google.api_core.client_logging._BASE_LOGGER_NAME", "foogle"):
             initialize_logging()
diff --git a/tests/unit/test_client_options.py b/tests/unit/test_client_options.py
index 396d6627..3a57ee7d 100644
--- a/tests/unit/test_client_options.py
+++ b/tests/unit/test_client_options.py
@@ -27,7 +27,6 @@ def get_client_encrypted_cert():
 
 
 def test_constructor():
-
     options = client_options.ClientOptions(
         api_endpoint="foo.googleapis.com",
         client_cert_source=get_client_cert,
@@ -54,7 +53,6 @@ def test_constructor():
 
 
 def test_constructor_with_encrypted_cert_source():
-
     options = client_options.ClientOptions(
         api_endpoint="foo.googleapis.com",
         client_encrypted_cert_source=get_client_encrypted_cert,
@@ -78,7 +76,6 @@ def test_constructor_with_both_cert_sources():
 
 
 def test_constructor_with_api_key():
-
     options = client_options.ClientOptions(
         api_endpoint="foo.googleapis.com",
         client_cert_source=get_client_cert,
diff --git a/tests/unit/test_grpc_helpers.py b/tests/unit/test_grpc_helpers.py
index 8de9d8c0..a5f4a39b 100644
--- a/tests/unit/test_grpc_helpers.py
+++ b/tests/unit/test_grpc_helpers.py
@@ -403,16 +403,9 @@ def test_create_channel_implicit(
 
     google_auth_default.assert_called_once_with(scopes=None, default_scopes=None)
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        # The original target is the expected target
-        expected_target = target
-        grpc_secure_channel.assert_called_once_with(
-            expected_target, composite_creds, None
-        )
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            expected_target, composite_creds, compression=grpc.Compression.Gzip
-        )
+    grpc_secure_channel.assert_called_once_with(
+        expected_target, composite_creds, compression=grpc.Compression.Gzip
+    )
 
 
 @pytest.mark.parametrize(
@@ -462,16 +455,9 @@ def test_create_channel_implicit_with_default_host(
         mock.sentinel.credentials, mock.sentinel.Request, default_host=default_host
     )
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        # The original target is the expected target
-        expected_target = target
-        grpc_secure_channel.assert_called_once_with(
-            expected_target, composite_creds, None
-        )
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            expected_target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        expected_target, composite_creds, compression=None
+    )
 
 
 @pytest.mark.parametrize(
@@ -504,12 +490,9 @@ def test_create_channel_implicit_with_ssl_creds(
     composite_creds_call.assert_called_once_with(ssl_creds, mock.ANY)
     composite_creds = composite_creds_call.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 def test_create_channel_implicit_with_ssl_creds_attempt_direct_path_true():
@@ -542,12 +525,9 @@ def test_create_channel_implicit_with_scopes(
 
     default.assert_called_once_with(scopes=["one", "two"], default_scopes=None)
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -569,12 +549,9 @@ def test_create_channel_implicit_with_default_scopes(
 
     default.assert_called_once_with(scopes=None, default_scopes=["three", "four"])
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 def test_create_channel_explicit_with_duplicate_credentials():
@@ -603,12 +580,9 @@ def test_create_channel_explicit(grpc_secure_channel, auth_creds, composite_cred
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -629,12 +603,9 @@ def test_create_channel_explicit_scoped(grpc_secure_channel, composite_creds_cal
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -659,12 +630,9 @@ def test_create_channel_explicit_default_scopes(
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -687,12 +655,9 @@ def test_create_channel_explicit_with_quota_project(
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -718,12 +683,9 @@ def test_create_channel_with_credentials_file(
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -752,12 +714,9 @@ def test_create_channel_with_credentials_file_and_scopes(
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 @mock.patch("grpc.compute_engine_channel_credentials")
@@ -786,44 +745,9 @@ def test_create_channel_with_credentials_file_and_default_scopes(
 
     assert channel is grpc_secure_channel.return_value
 
-    if grpc_helpers.HAS_GRPC_GCP:  # pragma: NO COVER
-        grpc_secure_channel.assert_called_once_with(target, composite_creds, None)
-    else:
-        grpc_secure_channel.assert_called_once_with(
-            target, composite_creds, compression=None
-        )
-
-
-@pytest.mark.skipif(
-    not grpc_helpers.HAS_GRPC_GCP, reason="grpc_gcp module not available"
-)
-@mock.patch("grpc_gcp.secure_channel")
-def test_create_channel_with_grpc_gcp(grpc_gcp_secure_channel):  # pragma: NO COVER
-    target = "example.com:443"
-    scopes = ["test_scope"]
-
-    credentials = mock.create_autospec(google.auth.credentials.Scoped, instance=True)
-    credentials.requires_scopes = True
-
-    grpc_helpers.create_channel(target, credentials=credentials, scopes=scopes)
-    grpc_gcp_secure_channel.assert_called()
-
-    credentials.with_scopes.assert_called_once_with(scopes, default_scopes=None)
-
-
-@pytest.mark.skipif(grpc_helpers.HAS_GRPC_GCP, reason="grpc_gcp module not available")
-@mock.patch("grpc.secure_channel")
-def test_create_channel_without_grpc_gcp(grpc_secure_channel):
-    target = "example.com:443"
-    scopes = ["test_scope"]
-
-    credentials = mock.create_autospec(google.auth.credentials.Scoped, instance=True)
-    credentials.requires_scopes = True
-
-    grpc_helpers.create_channel(target, credentials=credentials, scopes=scopes)
-    grpc_secure_channel.assert_called()
-
-    credentials.with_scopes.assert_called_once_with(scopes, default_scopes=None)
+    grpc_secure_channel.assert_called_once_with(
+        target, composite_creds, compression=None
+    )
 
 
 class TestChannelStub(object):
diff --git a/tests/unit/test_page_iterator.py b/tests/unit/test_page_iterator.py
index 560722c5..ba0fbba4 100644
--- a/tests/unit/test_page_iterator.py
+++ b/tests/unit/test_page_iterator.py
@@ -360,7 +360,6 @@ def test__has_next_page_w_max_results_not_done(self):
         assert iterator._has_next_page()
 
     def test__has_next_page_w_max_results_done(self):
-
         iterator = page_iterator.HTTPIterator(
             mock.sentinel.client,
             mock.sentinel.api_request,