Update CircleCI job to use Python3.6 (#2527)

Co-authored-by: Ke Zhang <[email protected]>

.circleci/build.sh

@@ -21,7 +21,7 @@ fi
 # setup virtualenv
 VENV_DIR=/tmp/venv
 PYTHON="$(which python)"
-if [[ "${CIRCLE_JOB}" =~ py((2|3)\\.?[0-9]?\\.?[0-9]?) ]]; then
+if [[ "${CIRCLE_JOB}" =~ py((2|3)\.?[0-9]?\.?[0-9]?) ]]; then
     PYTHON=$(which "python${BASH_REMATCH[1]}")
 fi
 $PYTHON -m virtualenv "$VENV_DIR"
@@ -39,9 +39,11 @@ cp -r "$PWD" "$ONNX_DIR"
 # install ninja to speedup the build
 pip install ninja
 
-# install everything
+# install pytorch
 cd $PYTORCH_DIR
 ./scripts/onnx/install-develop.sh
+# install onnxruntime
+pip install -i https://test.pypi.org/simple/ ort-nightly==1.0.0.dev1123
 
 # report sccache hit/miss stats
 if hash sccache 2>/dev/null; then

.circleci/config.yml

@@ -69,13 +69,13 @@ linux_default: &linux_default
         docker exec -e CIRCLE_JOB=${CIRCLE_JOB} -u jenkins $(cat .docker_pid) .circleci/test.sh
 
 jobs:
-  py2-gcc7-ubuntu16.04:
+  py3.6-clang7-ubuntu16.04:
     environment:
-      DOCKER_IMAGE: "308535385114.dkr.ecr.us-east-1.amazonaws.com/caffe2/py2-gcc7-ubuntu16.04:238"
+      DOCKER_IMAGE: "308535385114.dkr.ecr.us-east-1.amazonaws.com/caffe2/py3.6-clang7-ubuntu16.04:345"
     <<: *linux_default
 
 workflows:
   version: 2
   build:
     jobs:
-      - py2-gcc7-ubuntu16.04
+      - py3.6-clang7-ubuntu16.04