Correctly render tuples as tuples, not lists

Fixes #330

CHANGELOG.rst

@@ -3,6 +3,15 @@ Changelog
 
 Versions follow `Semantic Versioning <https://semver.org/>`_ (``<major>.<minor>.<patch>``).
 
+v2.0.1 (TBC)
+------------
+
+Bug Fixes
+^^^^^^^^^
+* `#330 <https://github.com/readthedocs/sphinx-autoapi/issues/330>`: (Python)
+  Render tuple values as tuples, not lists.
+
+
 v2.0.0 (2022-09-27)
 -------------------
 

autoapi/mappers/python/astroid_utils.py

@@ -139,6 +139,9 @@ def _get_const_values(node):
                 break
         else:
             value = new_value
+
+        if isinstance(node, astroid.nodes.Tuple):
+            value = tuple(new_value)
     elif isinstance(node, astroid.nodes.Const):
         value = node.value
 

tests/python/pyexample/example/example.py

@@ -4,6 +4,11 @@
 This is a description
 """
 
+A_TUPLE = ("a", "b")
+"""A tuple to be rendered as a tuple."""
+A_LIST = ["c", "d"]
+"""A list to be rendered as a list."""
+
 
 class Foo(object):
     """Can we parse arguments from the class docstring?

tests/python/test_pyintegration.py

@@ -104,6 +104,11 @@ class TestSimpleModule:
         # (autoapi_python_class_content="both") class docstring only once.
         assert example_file.count("One __init__.") == 3
 
+        # Tuples should be rendered as tuples, not lists
+        assert "('a', 'b')" in example_file
+        # Lists should be rendered as lists, not tuples
+        assert "['c', 'd']" in example_file
+
         index_path = "_build/text/index.txt"
         with io.open(index_path, encoding="utf8") as index_handle:
             index_file = index_handle.read()