Add missing `python_requires` to `setup.py`.

2 files changed, 2 insertions, 1 deletions

diff --git a/CHANGES.rst b/CHANGES.rst
index 4907919..63a2341 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -5,7 +5,7 @@
 5.1 (unreleased)
 ================
 
-- Nothing changed yet.
+- Add missing ``python_requires`` to ``setup.py``.
 
 
 5.0 (2023-01-19)
diff --git a/setup.py b/setup.py
index 2cd8a7f..d654b7b 100644
--- a/setup.py
+++ b/setup.py
@@ -72,6 +72,7 @@ setup(name='zope.tal',
       packages=find_packages('src'),
       package_dir={'': 'src'},
       namespace_packages=['zope'],
+      python_requires='>=3.7',
       extras_require={
           'test': TESTS_REQUIRE,
           'docs': [