From 4bc4a44ed98bba70664abf0fbdc922415fafa211 Mon Sep 17 00:00:00 2001
From: Yu Yang <yuyang18@baidu.com>
Date: Thu, 29 Sep 2016 00:43:22 +0800
Subject: [PATCH] Check if paddle is installed when unittest. (#134)

---
 paddle/.set_python_path.sh | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/paddle/.set_python_path.sh b/paddle/.set_python_path.sh
index afde3e51db..f7019b27f8 100755
--- a/paddle/.set_python_path.sh
+++ b/paddle/.set_python_path.sh
@@ -22,15 +22,21 @@
 # It same as PYTHONPATH=${YOUR_PYTHON_PATH}:$PYTHONPATH {exec...}
 #
 
-PYPATH=""
-set -x
-while getopts "d:" opt; do
-  case $opt in
-    d)
-      PYPATH=$OPTARG
-      ;;
-  esac
-done
-shift $(($OPTIND - 1))
-export PYTHONPATH=$PYPATH
-$@
+if ! python -c "import paddle" >/dev/null 2>/dev/null; then
+  PYPATH=""
+  set -x
+  while getopts "d:" opt; do
+    case $opt in
+      d)
+        PYPATH=$OPTARG
+        ;;
+    esac
+  done
+  shift $(($OPTIND - 1))
+  export PYTHONPATH=$PYPATH
+  $@
+else
+  echo "paddle package is already in your PYTHONPATH. But unittest need a clean environment."
+  echo "Please uninstall paddle package before start unittest. Try to 'pip uninstall paddle'"
+  exit 1
+fi
-- 
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