Move Python version check to a common file and add upper bound

Author: mathoudebine

configure.py

@@ -19,6 +19,9 @@
 
 # This file is the system monitor configuration GUI
 
+from library.pythoncheck import check_python_version
+check_python_version()
+
 import glob
 import os
 import platform
@@ -28,14 +31,6 @@
 import requests
 import babel
 
-MIN_PYTHON = (3, 9)
-if sys.version_info < MIN_PYTHON:
-    print("[ERROR] Python %s.%s or later is required." % MIN_PYTHON)
-    try:
-        sys.exit(0)
-    except:
-        os._exit(0)
-
 try:
     import tkinter.ttk as ttk
     from tkinter import *

library/pythoncheck.py

@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# turing-smart-screen-python - a Python system monitor and library for USB-C displays like Turing Smart Screen or XuanFang
+# https://github.com/mathoudebine/turing-smart-screen-python/
+#
+# Copyright (C) 2021 Matthieu Houdebine (mathoudebine)
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# This file is used to check if Python version used is compatible
+import os
+import sys
+
+# Oldest / newest version supported
+MIN_PYTHON = (3, 9)
+MAX_PYTHON = (3, 13)
+
+
+def check_python_version():
+    current_version = sys.version_info[:2]
+
+    if current_version < MIN_PYTHON or current_version > MAX_PYTHON:
+        print(f"[ERROR] Python {current_version[0]}.{current_version[1]} is not supported by this program. "
+              f"Python {MIN_PYTHON[0]}.{MIN_PYTHON[1]}-{MAX_PYTHON[0]}.{MAX_PYTHON[1]} required.")
+        try:
+            sys.exit(0)
+        except:
+            os._exit(0)

main.py

@@ -23,18 +23,14 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # This file is the system monitor main program to display HW sensors on your screen using themes (see README)
+
+from library.pythoncheck import check_python_version
+check_python_version()
+
 import glob
 import os
 import sys
 
-MIN_PYTHON = (3, 9)
-if sys.version_info < MIN_PYTHON:
-    print("[ERROR] Python %s.%s or later is required." % MIN_PYTHON)
-    try:
-        sys.exit(0)
-    except:
-        os._exit(0)
-
 try:
     import atexit
     import locale

res/fonts/font-preview.py

@@ -20,16 +20,6 @@
 # This file generate PNG previews for available fonts
 
 import os
-import sys
-
-MIN_PYTHON = (3, 9)
-if sys.version_info < MIN_PYTHON:
-    print("[ERROR] Python %s.%s or later is required." % MIN_PYTHON)
-    try:
-        sys.exit(0)
-    except:
-        os._exit(0)
-
 from PIL import Image, ImageDraw, ImageFont
 import math
 from pathlib import Path

simple-program.py

@@ -19,6 +19,9 @@
 
 # This file is a simple Python test program using the library code to display custom content on screen (see README)
 
+from library.pythoncheck import check_python_version
+check_python_version()
+
 import os
 import signal
 import sys

theme-editor.py

@@ -20,6 +20,9 @@
 # theme-editor.py: Allow to easily edit themes for System Monitor (main.py) in a preview window on the computer
 # The preview window is refreshed as soon as the theme file is modified
 
+from library.pythoncheck import check_python_version
+check_python_version()
+
 import locale
 import logging
 import os
@@ -28,14 +31,6 @@
 import sys
 import time
 
-MIN_PYTHON = (3, 8)
-if sys.version_info < MIN_PYTHON:
-    print("[ERROR] Python %s.%s or later is required." % MIN_PYTHON)
-    try:
-        sys.exit(0)
-    except:
-        os._exit(0)
-
 try:
     import tkinter
     from PIL import ImageTk, Image

tools/turing-theme-extractor.py

@@ -27,14 +27,6 @@
 PNG_SIGNATURE = b'\x89\x50\x4E\x47\x0D\x0A\x1A\x0A'
 PNG_IEND = b'\x49\x45\x4E\x44\xAE\x42\x60\x82'
 
-MIN_PYTHON = (3, 8)
-if sys.version_info < MIN_PYTHON:
-    print("[ERROR] Python %s.%s or later is required." % MIN_PYTHON)
-    try:
-        sys.exit(0)
-    except:
-        os._exit(0)
-
 if len(sys.argv) != 2:
     print("Usage :")
     print("        turing-theme-extractor.py path/to/theme-file.data")