version: use importlib

doc/conf.py

@@ -1,3 +1,4 @@
+from importlib import metadata
 from urllib.request import urlopen
 
 
@@ -6,18 +7,9 @@
 with urlopen(_conf_url) as _inf:
     exec(compile(_inf.read(), _conf_url, "exec"), globals())
 
-copyright = "2009-21, Andreas Kloeckner"
-
-# The short X.Y version.
-import re
-
-
-ver_re = re.compile(r'version\s*=\s*"([0-9a-z.]+)"')
-version = next(ver_re.search(line).group(1)
-        for line in open("../setup.py").readlines()
-        if ver_re.search(line))
-# The full version, including alpha/beta/rc tags.
-release = version
+copyright = "2009-2024, Andreas Kloeckner"
+release = metadata.version("codepy")
+version = ".".join(release.split(".")[:2])
 
 intersphinx_mapping = {
         "python": ("https://docs.python.org/dev", None),