Fix issue related to the installation of Python

.github/scripts/setup_vdms.sh

@@ -134,26 +134,37 @@ else
 
 fi
 
-
 # SETUP PYTHON VERSION
-version_exists=$(echo "$(python${PYTHON_BASE} --version | cut -d ' ' -f 2)" || echo false)
-if [ "${version_exists}" != "${PYTHON_VERSION}" ]
+# Check the version used by python3
+version_exists=$(echo "$(python3 --version | cut -d ' ' -f 2)" || echo false)
+version_used_base=""
+# if that version is lower than the required one
+if $(dpkg --compare-versions "${version_exists}" "lt" "${PYTHON_VERSION}")
 then
-    echo "Installing python ${PYTHON_VERSION}..."
-    apt update -y
-    apt install -y libffi-dev libgdbm-dev libnss3-dev libreadline-dev libsqlite3-dev zlib1g-dev
-    curl -L -o ${VDMS_DEP_DIR}/Python-${PYTHON_VERSION}.tgz https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tgz
-    cd ${VDMS_DEP_DIR}
-    tar -xzf Python-${PYTHON_VERSION}.tgz
-    cd Python-${PYTHON_VERSION}
-    ./configure --enable-optimizations && make -j && make altinstall
+    # Check if the path to the required minimum version exists
+    # if it doesn't exist then it displays the error and finish the script
+    if [ $(which python${PYTHON_BASE}) = "" ]; then
+        echo "Error: please install the Python v${PYTHON_VERSION} or greater..."
+        echo "Exiting..."
+        # CLEANUP
+        rm -rf $VDMS_DEP_DIR
+        exit 1;
+    fi
+
+    # If the required version of Python is installed but it is not being used currently
+    # Then, the script is going to use at least the version that it is required
+    version_used_base=${PYTHON_BASE}
 else
-    echo "python ${PYTHON_VERSION} already installed"
+    # If the current version of Python is equal or greater than the required
+    echo "$(python3 --version) already installed"
+    version_used_base=$(echo ${version_exists} | cut -d. -f-2 || echo false)
 fi
-alias python=$(which python${PYTHON_BASE})
-alias python3=$(which python${PYTHON_BASE})
 
-python${PYTHON_BASE} -m venv ${VIRTUAL_ENV}
+# It sets the Python version found (3.12 or more recent) as default
+alias python=$(which python${version_used_base})
+alias python3=$(which python${version_used_base})
+
+python${version_used_base} -m venv ${VIRTUAL_ENV}
 export PATH="$VIRTUAL_ENV/bin:$PATH"