Merge pull request #15312 from matt-kwong/python-fallback

Install pip for Python3.4 in all Dockerfiles used for Python testing

templates/tools/dockerfile/interoptest/grpc_interop_python/Dockerfile.template

@@ -18,6 +18,10 @@
   
   <%include file="../../apt_get_basic.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"]

templates/tools/dockerfile/test/python_pyenv_x64/Dockerfile.template

@@ -20,6 +20,10 @@
   <%include file="../../gcp_api_libraries.include"/>
   <%include file="../../python_deps.include"/>
   <%include file="../../apt_get_pyenv.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/interoptest/grpc_interop_python/Dockerfile

@@ -64,6 +64,10 @@ 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
+
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++

tools/dockerfile/test/python_pyenv_x64/Dockerfile

@@ -91,6 +91,10 @@ RUN pyenv install 3.6-dev
 RUN pyenv install pypy-5.3.1
 RUN pyenv local 3.5-dev 3.6-dev pypy-5.3.1
 
+# 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
+
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++