tools/run_tests/build_python.sh

#!/bin/bash
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set -ex

# change to grpc repo root
cd $(dirname $0)/../..

root=`pwd`

if [ ! -d 'python2.7_virtual_environment' ]
then
  # Build the entire virtual environment
  virtualenv -p /usr/bin/python2.7 python2.7_virtual_environment
  source python2.7_virtual_environment/bin/activate
  pip install -r src/python/requirements.txt
else
  source python2.7_virtual_environment/bin/activate
  # Uninstall and re-install the packages we care about. Don't use
  # --force-reinstall or --ignore-installed to avoid propagating this
  # unnecessarily to dependencies. Don't use --no-deps to avoid missing
  # dependency upgrades.
  (yes | pip uninstall grpcio) || true
  (yes | pip uninstall interop) || true
fi
CFLAGS="-I$root/include -std=c89" LDFLAGS=-L$root/libs/$CONFIG GRPC_PYTHON_BUILD_WITH_CYTHON=1 pip install src/python/src
pip install src/python/interop