accept install for python 3.11

setup.py

@@ -27,7 +27,7 @@
     setup_requires=['setuptools_scm'],
     #version="3.0.48", ##Automatic versioning from Github Tags
     packages=find_packages(),
-    python_requires='>=2.6 , <3.9',
+    python_requires='>=2.6 , <3.12',
 
     # Project uses reStructuredText, so ensure that the docutils get
     # installed or upgraded on the target machine
@@ -53,12 +53,14 @@
     license="MIT",
     keywords="Lauetools x-ray scattering data analysis GUI Laue",
     url="https://github.com/BM32ESRF/lauetools",  # project home page, if any
-    classifiers=["Programming Language :: Python :: 3.8",
+    classifiers=["Programming Language :: Python :: 3.11"
+	    "Programming Language :: Python :: 3.10",
+	    "Programming Language :: Python :: 3.9",
+		 "Programming Language :: Python :: 3.8",
 "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.6",
 	"Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 2.7",
-	"Programming Language :: Python :: 2.6",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
     ],