Choose proper Brython versions based on Python ver

README.md

@@ -153,6 +153,10 @@ However, in reality there are some limitations outside of the control of `brip`.
   Consequently, only those packages written in pure Python
   *and its entire dependency chain* written in pure Python, would work in Brython.
 
+* As of this writing, Brython 3.10.5 does not support converting
+  [namespace packages](https://packaging.python.org/en/latest/guides/packaging-namespace-packages/)
+  into a loadable javascript file.
+
 * Sometimes, even pure Python package might not work in Brython, due to some subtle
   [differences between Brython and CPython](https://brython.info/static_doc/en/stdlib.html).
 

setup.cfg

@@ -21,15 +21,22 @@ classifiers =
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
 
 # NOTE: Settings of this section below this line should not need to be changed
 
 long_description = file: README.md
 
 [options]
+python_requires = >=3.7
 install_requires =
     # See also https://setuptools.readthedocs.io/en/latest/userguide/quickstart.html#dependency-management
-    brython>=3.7.5,<4  # The BFS format was first introduced in brython 3.7.5
+
+    brython>=3.7.5,<=3.10.5; python_version>='3.7' and python_version<='3.9'  # The BFS format was first introduced in brython 3.7.5
+    brython>=3.10.6; python_version>='3.10'  # Brython 3.10.6+ uses the "match" syntax that requires Python 3.10+
+
     pip>=1.1  # We need "-t" introduced in pip 1.1 https://github.com/pypa/pip/commit/176d3a266313d69c6303381907cb864464cf4b3a
 
 # NOTE: Settings of this section below this line should not need to be changed