Add update-python-env script

update-python-env.sh

@@ -0,0 +1,49 @@
+if [ -z $1 ]; then
+    echo "Usage: $0 <python version> [ENV_NAME [dev]]"
+    exit 1
+fi
+
+if [ ! -f .python-version ]; then
+    echo "Not a python project: `pwd`"
+    exit 1
+fi
+
+PY_VER=$1
+PROJECT=$2
+if [[ $PROJECT == "" ]]; then
+    PROJECT=$(basename $PWD)
+fi
+DO_DEV=$3
+
+echo "[*] Checking if required python version $PY_VER is installed"
+pyenv versions | grep $PY_VER > /dev/null
+res=$?
+if [ $res -eq 1 ]; then
+	echo "Python $PY_VER is not installed. Run \"pyenv install $PY_VER\""
+	exit 1
+fi
+
+CUR_VENV=$(cat .python-version)
+echo "[*] Removing current virtualenv ($CUR_VENV)"
+pyenv virtualenv-delete -f $CUR_VENV
+
+echo "[*] Removing virtualenv named as project ($PROJECT)"
+pyenv virtualenv-delete -f $PROJECT
+
+NEW_VENV=$PY_VER/envs/$PROJECT
+echo "[*] Creating new virtualenv ($NEW_VENV)"
+pyenv virtualenv $PY_VER $PROJECT
+echo $NEW_VENV > .python-version
+
+echo "[*] Updating pip, setuptools and wheel"
+pip install -U pip setuptools wheel
+
+if [ -f requirements.txt ]; then
+    echo "[*] Installing packets from requirements.txt"
+    pip install -Ur requirements.txt
+fi
+
+if [ -f requirements-dev.txt ] && [ "$DO_DEV" = "dev" ]; then
+    echo "[*] Installing packets from requirements-dev.txt"
+    pip install -Ur requirements-dev.txt
+fi