check python3 before running the script

Author: raghavyuva

scripts/install.sh

@@ -5,16 +5,18 @@ if [ "$EUID" -ne 0 ]; then
     exit 1
 fi
 
+if ! command -v python3 &> /dev/null; then
+    echo "Python 3 is not installed. Please install Python 3 before running this script."
+    exit 1
+fi
+
 TEMP_DIR=$(mktemp -d)
 cd $TEMP_DIR
 
 echo "Downloading Nixopus..."
 git clone https://github.com/raghavyuva/nixopus.git
 cd nixopus/installer
 
-echo "Installing dependencies..."
-pip install -r requirements.txt
-
 echo "Starting installation..."
 python3 install.py