fix requirement

python/examples/pipeline/imdb_model_ensemble/test_pipeline_client.py

@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from paddle_serving_server.pipeline import PipelineClient
+from paddle_serving_client.pipeline import PipelineClient
 import numpy as np
 
 client = PipelineClient()

python/requirements.txt

-protobuf>=3.1.0
-six
-paddlepaddle-gpu
+numpy>=1.12, <=1.16.4 ; python_version<"3.5"
+grpcio-tools>=1.28.1
+grpcio>=1.28.1
+func-timeout>=4.3.5
+pyyaml>=1.3.0