Fix using tuples as positional arguments in rich repr

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Parse ANSI escape sequences in pretty repr https://github.com/Textualize/rich/pull/2470
 - Add support for `FORCE_COLOR` env var https://github.com/Textualize/rich/pull/2449
 - Allow a `max_depth` argument to be passed to the `install()` hook https://github.com/Textualize/rich/issues/2486
+- Document using `None` as name in `__rich_repr__` for tuple posotional args https://github.com/Textualize/rich/pull/2379
 
 ### Fixed
 

docs/source/pretty.rst

@@ -157,6 +157,8 @@ Each tuple specifies an element in the output.
 - ``yield name, value`` will generate a keyword argument.
 - ``yield name, value, default`` will generate a keyword argument *if* ``value`` is not equal to ``default``.
 
+If you use ``None`` as the ``name``, then it will be treated as a positional argument as well, in order to support having ``tuple`` positional arguments.
+
 You can also tell Rich to generate the *angular bracket* style of repr, which tend to be used where there is no easy way to recreate the object's constructor. To do this set the function attribute ``"angular"`` to ``True`` immediately after your ``__rich_repr__`` method. For example::
 
     __rich_repr__.angular = True

tests/test_pretty.py

@@ -589,3 +589,27 @@ def test_measure_pretty():
 
     measurement = console.measure(pretty)
     assert measurement == Measurement(12, 12)
+
+
+def test_tuple_rich_repr():
+    """
+    Test that can use None as key to have tuple positional values.
+    """
+
+    class Foo:
+        def __rich_repr__(self):
+            yield None, (1,)
+
+    assert pretty_repr(Foo()) == "Foo((1,))"
+
+
+def test_tuple_rich_repr_default():
+    """
+    Test that can use None as key to have tuple positional values and with a default.
+    """
+
+    class Foo:
+        def __rich_repr__(self):
+            yield None, (1,), (1,)
+
+    assert pretty_repr(Foo()) == "Foo()"