[BugFix] Python 3.11 #90

pyproject.toml

@@ -22,15 +22,19 @@ authors = [
 dynamic = ["version"]
 
 license = {file = "LICENSE"}
-requires-python = ">=3.8"
+requires-python = ">=3.8, <3.11" # https://github.com/kaist-silab/rl4co/issues/90
 classifiers = [
+    "Programming Language :: Python",
     "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
     "License :: OSI Approved :: Apache Software License",
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
     "Intended Audience :: Science/Research",
     "Operating System :: OS Independent",
-    "Programming Language :: Python"
+    "Topic :: Scientific/Engineering :: Artificial Intelligence",
 ]
 
 dependencies = [
@@ -65,7 +69,7 @@ dev = ["black", "ruff", "pre-commit>=3.3.3"]
 select = ["F", "E", "W", "I001"]
 line-length = 90
 show-fixes = false
-target-version = "py311"
+target-version = "py310"
 task-tags = ["TODO", "FIXME"]
 exclude = [
     ".bzr",