diff -r ebf4806e4ab7 -r db0f56b19583 cubicweb/__pkginfo__.py
--- a/cubicweb/__pkginfo__.py	Wed Mar 11 11:18:40 2020 +0100
+++ b/cubicweb/__pkginfo__.py	Tue Mar 17 13:34:54 2020 +0100
@@ -34,7 +34,9 @@
 classifiers = [
     'Environment :: Web Environment',
     'Framework :: CubicWeb',
+    'Programming Language :: Python',
     'Programming Language :: Python :: 3',
+    'Programming Language :: Python :: 3 :: Only',
     'Programming Language :: JavaScript',
 ]