bpo-37268: Add deprecation notice and a DeprecationWarning for the parser module (GH-15017)
Deprecate the parser module and add a deprecation warning triggered on import and a warning block in the documentation.
https://bugs.python.org/issue37268
Automerge-Triggered-By: @pablogsal
diff --git a/Lib/test/test_parser.py b/Lib/test/test_parser.py
index e5285c6..ec1845d 100644
--- a/Lib/test/test_parser.py
+++ b/Lib/test/test_parser.py
@@ -6,6 +6,7 @@
import struct
from test import support
from test.support.script_helper import assert_python_failure
+from test.support.script_helper import assert_python_ok
#
# First, we test that we can generate trees from valid source fragments,
@@ -987,5 +988,13 @@
with self.assertRaises(TypeError):
parser.expr("a", "b")
+
+class TestDeprecation(unittest.TestCase):
+ def test_deprecation_message(self):
+ code = "def f():\n import parser\n\nf()"
+ rc, out, err = assert_python_ok('-c', code)
+ self.assertIn(b'<string>:2: DeprecationWarning', err)
+
+
if __name__ == "__main__":
unittest.main()