Use Python3.5 instead of Python3.4 on Debian 9
diff --git a/templates/tools/dockerfile/test/python_pyenv_x64/Dockerfile.template b/templates/tools/dockerfile/test/python_pyenv_x64/Dockerfile.template
index b408b74..1e013b7 100644
--- a/templates/tools/dockerfile/test/python_pyenv_x64/Dockerfile.template
+++ b/templates/tools/dockerfile/test/python_pyenv_x64/Dockerfile.template
@@ -20,9 +20,9 @@
<%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
+ # Install pip and virtualenv for Python 3.5
+ RUN curl https://bootstrap.pypa.io/get-pip.py | python3.5
+ RUN python3.5 -m pip install virtualenv
<%include file="../../run_tests_addons.include"/>
# Define the default command.