Added a version check to the install.sh script.

Author: Florian Kraemer

install.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+# Check if a Python executable is present.
 if command -v python3 &>/dev/null; then
     python_cmd=python3
 elif command -v python &>/dev/null; then
@@ -9,6 +10,20 @@ else
     exit 1
 fi
 
+# Get the version number of Python installed on the system.
+python_version=$($python_cmd --version 2>&1 | awk '{print $2}')
+
+# Extract the major version number (i.e. 3 from 3.x).
+major_version=$(echo $python_version | cut -d. -f1)
+
+if [ "$major_version" == "3" ]; then
+    echo "Python 3 is installed."
+else
+    echo "Python 3 is not installed."
+    exit 1
+fi
+
+# Execute the installation
 $python_cmd -m pip install -U robotframework
 $python_cmd -m pip install -U robotframework-requests
 $python_cmd -m pip install -U robotframework-databaselibrary