Add setup file just to check Python used to install.

Author: rocky

pyproject.toml

@@ -16,11 +16,8 @@ dependencies = [
 ]
 readme = "README.rst"
 
-# 3.8 lingo
-license = {text = "GPL"}
-
 # Newer lingo
-# license = "GPL-3.0-or-later"
+license = "GPL-3.0-or-later"
 
 keywords = ["Python bytecode", "bytecode", "disassembler"]
 classifiers = [

setup.py

@@ -0,0 +1,28 @@
+"""
+  Check that the Python version running this is compatible with this installation medium.
+  Note: that we use 2.x compatible Python code here.
+"""
+import sys
+from setuptools import setup
+
+major = sys.version_info[0]
+minor = sys.version_info[1]
+
+if major != 3 or not minor >= 11:
+    sys.stderr.write("This installation medium is only for Python 3.11 and later. You are running Python %s.%s.\n" % (major, minor))
+
+if major == 3 and 6 <= minor <= 10:
+    sys.stderr.write("Please install using uncompyle6_36-x.y.z.tar.gz from https://github.com/rocky/python-uncompyle6/releases\n")
+    sys.exit(1)
+elif major == 3 and 3 <= minor <= 5:
+    sys.stderr.write("Please install using uncompyle6_33-x.y.z.tar.gz from https://github.com/rocky/python-uncompyle6/releases\n")
+    sys.exit(1)
+if major == 3 and 0 <= minor <= 2:
+    sys.stderr.write("Please install using uncompyle6_30-x.y.z.tar.gz from https://github.com/rocky/python-uncompyle6/releases\n")
+    sys.exit(1)
+elif major == 2:
+    sys.stderr.write("Please install using uncompyle6_24-x.y.z.tar.gz from https://github.com/rocky/python-uncompyle6/releases\n")
+    sys.exit(1)
+
+
+setup()