Add specifier.

zopefoundation · Apr 24, 2020 · 5d80427 · 5d80427
1 parent 07653c6
commit 5d80427
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/setup.py b/setup.py
@@ -51,6 +51,7 @@
         "Programming Language :: Python :: Implementation :: PyPy",
     ],
     ext_modules=ext_modules,
+    python_requires='>=3.5, <4',
     install_requires=[
         'ExtensionClass >= 4.2.0',
         'persistent >= 4.1.1',