test=develop, fix pip

paddle/scripts/paddle_build.sh

@@ -125,6 +125,8 @@ function cmake_gen() {
     else
         if [ "$1" != "" ]; then
             echo "using python abi: $1"
+            pip uninstall -y protobuf
+            pip install -r ${PADDLE_ROOT}/python/requirements.txt
             if [ "$1" == "cp27-cp27m" ]; then
                 export LD_LIBRARY_PATH=/opt/_internal/cpython-2.7.11-ucs2/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-2.7.11-ucs4/lib:}
                 export PATH=/opt/python/cp27-cp27m/bin/:${PATH}