diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c3c874ed2..bcab794c6 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,4 +1,3 @@
-exclude: doc/en/example/py2py3/test_py2.py
 repos:
 -   repo: https://github.com/psf/black
     rev: 19.10b0
diff --git a/doc/en/example/py2py3/conftest.py b/doc/en/example/py2py3/conftest.py
deleted file mode 100644
index 844510a25..000000000
--- a/doc/en/example/py2py3/conftest.py
+++ /dev/null
@@ -1,16 +0,0 @@
-import sys
-
-import pytest
-
-py3 = sys.version_info[0] >= 3
-
-
-class DummyCollector(pytest.collect.File):
-    def collect(self):
-        return []
-
-
-def pytest_pycollect_makemodule(path, parent):
-    bn = path.basename
-    if "py3" in bn and not py3 or ("py2" in bn and py3):
-        return DummyCollector(path, parent=parent)
diff --git a/doc/en/example/py2py3/test_py2.py b/doc/en/example/py2py3/test_py2.py
deleted file mode 100644
index 1f665086e..000000000
--- a/doc/en/example/py2py3/test_py2.py
+++ /dev/null
@@ -1,5 +0,0 @@
-def test_exception_syntax():
-    try:
-        0 / 0
-    except ZeroDivisionError, e:
-        assert e
diff --git a/doc/en/example/py2py3/test_py3.py b/doc/en/example/py2py3/test_py3.py
deleted file mode 100644
index d95702a53..000000000
--- a/doc/en/example/py2py3/test_py3.py
+++ /dev/null
@@ -1,5 +0,0 @@
-def test_exception_syntax():
-    try:
-        0 / 0
-    except ZeroDivisionError as e:
-        assert e