Attempt to drop support for Python 3.4

templates/tools/dockerfile/test/python_jessie_x64/Dockerfile.template

@@ -1,28 +0,0 @@
-%YAML 1.2
---- |
-  # Copyright 2015 gRPC authors.
-  #
-  # Licensed under the Apache License, Version 2.0 (the "License");
-  # you may not use this file except in compliance with the License.
-  # You may obtain a copy of the License at
-  #
-  #     http://www.apache.org/licenses/LICENSE-2.0
-  #
-  # Unless required by applicable law or agreed to in writing, software
-  # distributed under the License is distributed on an "AS IS" BASIS,
-  # 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.
-  
-  <%include file="../../debian_jessie_header.include"/>
-  
-  <%include file="../../apt_get_basic.include"/>
-  <%include file="../../gcp_api_libraries.include"/>
-  <%include file="../../python_deps.include"/>
-  # Install pip and virtualenv for Python 3.4
-  RUN curl https://bootstrap.pypa.io/get-pip.py | python3.4
-  RUN python3.4 -m pip install virtualenv
-
-  <%include file="../../run_tests_addons.include"/>
-  # Define the default command.
-  CMD ["bash"]

tools/dockerfile/grpc_artifact_python_manylinux1_x64/Dockerfile

@@ -24,7 +24,6 @@ RUN yum install -y curl-devel expat-devel gettext-devel linux-headers openssl-de
 # Install Python build requirements
 RUN /opt/python/cp27-cp27m/bin/pip install cython
 RUN /opt/python/cp27-cp27mu/bin/pip install cython
-RUN /opt/python/cp34-cp34m/bin/pip install cython
 RUN /opt/python/cp35-cp35m/bin/pip install cython
 RUN /opt/python/cp36-cp36m/bin/pip install cython
 RUN /opt/python/cp37-cp37m/bin/pip install cython

tools/dockerfile/grpc_artifact_python_manylinux1_x86/Dockerfile

@@ -24,7 +24,6 @@ RUN yum install -y curl-devel expat-devel gettext-devel linux-headers openssl-de
 # Install Python build requirements
 RUN /opt/python/cp27-cp27m/bin/pip install cython
 RUN /opt/python/cp27-cp27mu/bin/pip install cython
-RUN /opt/python/cp34-cp34m/bin/pip install cython
 RUN /opt/python/cp35-cp35m/bin/pip install cython
 RUN /opt/python/cp36-cp36m/bin/pip install cython
 RUN /opt/python/cp37-cp37m/bin/pip install cython

tools/dockerfile/grpc_artifact_python_manylinux2010_x64/Dockerfile

@@ -24,7 +24,6 @@ RUN yum install -y curl-devel expat-devel gettext-devel linux-headers openssl-de
 # Install Python build requirements
 RUN /opt/python/cp27-cp27m/bin/pip install cython
 RUN /opt/python/cp27-cp27mu/bin/pip install cython
-RUN /opt/python/cp34-cp34m/bin/pip install cython
 RUN /opt/python/cp35-cp35m/bin/pip install cython
 RUN /opt/python/cp36-cp36m/bin/pip install cython
 RUN /opt/python/cp37-cp37m/bin/pip install cython

tools/dockerfile/grpc_artifact_python_manylinux2010_x86/Dockerfile

@@ -24,7 +24,6 @@ RUN yum install -y curl-devel expat-devel gettext-devel linux-headers openssl-de
 # Install Python build requirements
 RUN /opt/python/cp27-cp27m/bin/pip install cython
 RUN /opt/python/cp27-cp27mu/bin/pip install cython
-RUN /opt/python/cp34-cp34m/bin/pip install cython
 RUN /opt/python/cp35-cp35m/bin/pip install cython
 RUN /opt/python/cp36-cp36m/bin/pip install cython
 RUN /opt/python/cp37-cp37m/bin/pip install cython

tools/dockerfile/test/python_jessie_x64/Dockerfile

@@ -1,80 +0,0 @@
-# Copyright 2015 gRPC authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# 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 debian:jessie
-
-
-# Install Git and basic packages.
-RUN apt-get update && apt-get install -y \
-  autoconf \
-  autotools-dev \
-  build-essential \
-  bzip2 \
-  ccache \
-  curl \
-  dnsutils \
-  gcc \
-  gcc-multilib \
-  git \
-  golang \
-  gyp \
-  lcov \
-  libc6 \
-  libc6-dbg \
-  libc6-dev \
-  libgtest-dev \
-  libtool \
-  make \
-  perl \
-  strace \
-  python-dev \
-  python-setuptools \
-  python-yaml \
-  telnet \
-  unzip \
-  wget \
-  zip && apt-get clean
-
-#================
-# Build profiling
-RUN apt-get update && apt-get install -y time && apt-get clean
-
-# Google Cloud platform API libraries
-RUN apt-get update && apt-get install -y python-pip && apt-get clean
-RUN pip install --upgrade google-api-python-client oauth2client
-
-#====================
-# Python dependencies
-
-# Install dependencies
-
-RUN apt-get update && apt-get install -y \
-    python-all-dev \
-    python3-all-dev \
-    python-pip
-
-# Install Python packages from PyPI
-RUN pip install --upgrade pip==10.0.1
-RUN pip install virtualenv
-RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.5.2.post1 six==1.10.0 twisted==17.5.0
-
-# Install pip and virtualenv for Python 3.4
-RUN curl https://bootstrap.pypa.io/get-pip.py | python3.4
-RUN python3.4 -m pip install virtualenv
-
-
-RUN mkdir /var/local/jenkins
-
-# Define the default command.
-CMD ["bash"]

tools/internal_ci/macos/grpc_build_artifacts.sh

@@ -22,7 +22,6 @@ source tools/internal_ci/helper_scripts/prepare_build_macos_rc
 
 # install cython for all python versions
 python2.7 -m pip install cython setuptools wheel
-python3.4 -m pip install cython setuptools wheel
 python3.5 -m pip install cython setuptools wheel
 python3.6 -m pip install cython setuptools wheel
 python3.7 -m pip install cython setuptools wheel

tools/internal_ci/windows/grpc_build_artifacts.bat

@@ -15,7 +15,6 @@
 @rem Move python installation from _32bit to _32bits where they are expected by python artifact builder
 @rem TODO(jtattermusch): get rid of this hack
 rename C:\Python27_32bit Python27_32bits
-rename C:\Python34_32bit Python34_32bits
 rename C:\Python35_32bit Python35_32bits
 rename C:\Python36_32bit Python36_32bits
 rename C:\Python37_32bit Python37_32bits

tools/internal_ci/windows/grpc_build_packages.bat

@@ -15,7 +15,6 @@
 @rem Move python installation from _32bit to _32bits where they are expected by python artifact builder
 @rem TODO(jtattermusch): get rid of this hack
 rename C:\Python27_32bit Python27_32bits
-rename C:\Python34_32bit Python34_32bits
 rename C:\Python35_32bit Python35_32bits
 rename C:\Python36_32bit Python36_32bits
 

tools/internal_ci/windows/grpc_distribtests.bat

@@ -15,7 +15,6 @@
 @rem Move python installation from _32bit to _32bits where they are expected by python artifact builder
 @rem TODO(jtattermusch): get rid of this hack
 rename C:\Python27_32bit Python27_32bits
-rename C:\Python34_32bit Python34_32bits
 rename C:\Python35_32bit Python35_32bits
 rename C:\Python36_32bit Python36_32bits
 

tools/internal_ci/windows/grpc_distribtests_standalone.bat

@@ -15,7 +15,6 @@
 @rem Move python installation from _32bit to _32bits where they are expected by python artifact builder
 @rem TODO(jtattermusch): get rid of this hack
 rename C:\Python27_32bit Python27_32bits
-rename C:\Python34_32bit Python34_32bits
 rename C:\Python35_32bit Python35_32bits
 rename C:\Python36_32bit Python36_32bits
 

tools/run_tests/artifacts/artifact_targets.py

@@ -170,7 +170,7 @@ class PythonArtifact:
                 docker_base_image='quay.io/pypa/manylinux1_i686'
                 if self.arch == 'x86' else 'quay.io/pypa/manylinux1_x86_64')
         elif self.platform == 'windows':
-            if 'Python27' in self.py_version or 'Python34' in self.py_version:
+            if 'Python27' in self.py_version:
                 environ['EXT_COMPILER'] = 'mingw32'
             else:
                 environ['EXT_COMPILER'] = 'msvc'
@@ -374,56 +374,47 @@ def targets():
         # Add manylinux2010_x86 targets once this issue is resolved.
         PythonArtifact('manylinux1', 'x86', 'cp27-cp27m'),
         PythonArtifact('manylinux1', 'x86', 'cp27-cp27mu'),
-        PythonArtifact('manylinux1', 'x86', 'cp34-cp34m'),
         PythonArtifact('manylinux1', 'x86', 'cp35-cp35m'),
         PythonArtifact('manylinux1', 'x86', 'cp36-cp36m'),
         PythonArtifact('manylinux1', 'x86', 'cp37-cp37m'),
         PythonArtifact('manylinux1', 'x86', 'cp38-cp38'),
         PythonArtifact('manylinux2010', 'x86', 'cp27-cp27m'),
         PythonArtifact('manylinux2010', 'x86', 'cp27-cp27mu'),
-        PythonArtifact('manylinux2010', 'x86', 'cp34-cp34m'),
         PythonArtifact('manylinux2010', 'x86', 'cp35-cp35m'),
         PythonArtifact('manylinux2010', 'x86', 'cp36-cp36m'),
         PythonArtifact('manylinux2010', 'x86', 'cp37-cp37m'),
         PythonArtifact('manylinux2010', 'x86', 'cp38-cp38'),
         PythonArtifact('linux_extra', 'armv7', '2.7'),
-        PythonArtifact('linux_extra', 'armv7', '3.4'),
         PythonArtifact('linux_extra', 'armv7', '3.5'),
         PythonArtifact('linux_extra', 'armv7', '3.6'),
         PythonArtifact('linux_extra', 'armv6', '2.7'),
-        PythonArtifact('linux_extra', 'armv6', '3.4'),
         PythonArtifact('linux_extra', 'armv6', '3.5'),
         PythonArtifact('linux_extra', 'armv6', '3.6'),
         PythonArtifact('manylinux1', 'x64', 'cp27-cp27m'),
         PythonArtifact('manylinux1', 'x64', 'cp27-cp27mu'),
-        PythonArtifact('manylinux1', 'x64', 'cp34-cp34m'),
         PythonArtifact('manylinux1', 'x64', 'cp35-cp35m'),
         PythonArtifact('manylinux1', 'x64', 'cp36-cp36m'),
         PythonArtifact('manylinux1', 'x64', 'cp37-cp37m'),
         PythonArtifact('manylinux1', 'x64', 'cp38-cp38'),
         PythonArtifact('manylinux2010', 'x64', 'cp27-cp27m'),
         PythonArtifact('manylinux2010', 'x64', 'cp27-cp27mu'),
-        PythonArtifact('manylinux2010', 'x64', 'cp34-cp34m'),
         PythonArtifact('manylinux2010', 'x64', 'cp35-cp35m'),
         PythonArtifact('manylinux2010', 'x64', 'cp36-cp36m'),
         PythonArtifact('manylinux2010', 'x64', 'cp37-cp37m'),
         PythonArtifact('manylinux2010', 'x64', 'cp38-cp38'),
         PythonArtifact('macos', 'x64', 'python2.7'),
-        PythonArtifact('macos', 'x64', 'python3.4'),
         PythonArtifact('macos', 'x64', 'python3.5'),
         PythonArtifact('macos', 'x64', 'python3.6'),
         PythonArtifact('macos', 'x64', 'python3.7'),
         # TODO(https://github.com/grpc/grpc/issues/20615) Enable this artifact
         # PythonArtifact('macos', 'x64', 'python3.8'),
         PythonArtifact('windows', 'x86', 'Python27_32bits'),
-        PythonArtifact('windows', 'x86', 'Python34_32bits'),
         PythonArtifact('windows', 'x86', 'Python35_32bits'),
         PythonArtifact('windows', 'x86', 'Python36_32bits'),
         PythonArtifact('windows', 'x86', 'Python37_32bits'),
         # TODO(https://github.com/grpc/grpc/issues/20615) Enable this artifact
         # PythonArtifact('windows', 'x86', 'Python38_32bits'),
         PythonArtifact('windows', 'x64', 'Python27'),
-        PythonArtifact('windows', 'x64', 'Python34'),
         PythonArtifact('windows', 'x64', 'Python35'),
         PythonArtifact('windows', 'x64', 'Python36'),
         PythonArtifact('windows', 'x64', 'Python37'),

tools/run_tests/run_tests.py

@@ -773,8 +773,6 @@ class PythonLanguage(object):
             return 'stretch_' + self.args.compiler[len('python'):]
         elif self.args.compiler == 'python_alpine':
             return 'alpine'
-        elif self.args.compiler == 'python3.4':
-            return 'jessie'
         else:
             return 'stretch_default'
 
@@ -828,12 +826,6 @@ class PythonLanguage(object):
             minor='7',
             bits=bits,
             config_vars=config_vars)
-        python34_config = _python_config_generator(
-            name='py34',
-            major='3',
-            minor='4',
-            bits=bits,
-            config_vars=config_vars)
         python35_config = _python_config_generator(
             name='py35',
             major='3',
@@ -884,8 +876,6 @@ class PythonLanguage(object):
                     )
         elif args.compiler == 'python2.7':
             return (python27_config,)
-        elif args.compiler == 'python3.4':
-            return (python34_config,)
         elif args.compiler == 'python3.5':
             return (python35_config,)
         elif args.compiler == 'python3.6':
@@ -903,11 +893,10 @@ class PythonLanguage(object):
         elif args.compiler == 'all_the_cpythons':
             return (
                 python27_config,
-                python34_config,
                 python35_config,
                 python36_config,
                 python37_config,
-                # TODO: Add Python 3.8 once it's released.
+                python38_config,
             )
         else:
             raise Exception('Compiler %s not supported.' % args.compiler)
@@ -1479,7 +1468,7 @@ argp.add_argument(
     choices=[
         'default', 'gcc4.4', 'gcc4.6', 'gcc4.8', 'gcc4.9', 'gcc5.3', 'gcc7.4',
         'gcc8.3', 'gcc_musl', 'clang3.4', 'clang3.5', 'clang3.6', 'clang3.7',
-        'clang7.0', 'python2.7', 'python3.4', 'python3.5', 'python3.6',
+        'clang7.0', 'python2.7', 'python3.5', 'python3.6',
         'python3.7', 'python3.8', 'pypy', 'pypy3', 'python_alpine',
         'all_the_cpythons', 'electron1.3', 'electron1.6', 'coreclr', 'cmake',
         'cmake_vs2015', 'cmake_vs2017'