update-python-env: add --local flag for local virtualenv

- Add shebang and proper quoting for variable checks ($1 → "$1")
- Fix version detection to use exact match (grep ^VERSION$ not substring)
- Implement --local flag to create project-local .venv instead of pyenv-virtualenv
- Automatically upgrades pip/setuptools/wheel and installs requirements.txt

update-python-env.sh

@@ -1,5 +1,19 @@
-if [ -z $1 ]; then
+#!/usr/bin/env bash
-    echo "Usage: $0 <python version> [ENV_NAME]"
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 [--local] <python version> [ENV_NAME]"
+    echo "  --local  create .venv in the current project instead of pyenv-virtualenv"
+    exit 1
+fi
+
+LOCAL_VENV=false
+if [ "$1" = "--local" ]; then
+    LOCAL_VENV=true
+    shift
+fi
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 [--local] <python version> [ENV_NAME]"
     exit 1
 fi
 
@@ -15,13 +29,31 @@ if [[ $PROJECT == "" ]]; then
 fi
 
 echo "[*] Checking if required python version $PY_VER is installed"
-pyenv versions | grep $PY_VER > /dev/null
+pyenv versions --bare | grep "^$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
 
+if [ "$LOCAL_VENV" = true ]; then
+    echo "[*] Creating local virtualenv (.venv)"
+    rm -rf .venv
+    echo "$PY_VER" > .python-version
+    "$(pyenv prefix "$PY_VER")/bin/python" -m venv .venv || exit 1
+
+    echo "[*] Updating pip, setuptools and wheel"
+    .venv/bin/python -m pip install -U pip setuptools wheel || exit 1
+
+    if [ -f requirements.txt ]; then
+        echo "[*] Installing packets from requirements.txt"
+        .venv/bin/python -m pip install -Ur requirements.txt || exit 1
+    fi
+
+    echo "[*] Local virtualenv is ready. Activate it with: source .venv/bin/activate"
+    exit 0
+fi
+
 CUR_VENV=$(cat .python-version)
 echo "[*] Removing current virtualenv ($CUR_VENV)"
 pyenv virtualenv-delete -f $CUR_VENV || true