Adding upstream version 3.0.30.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/test_dummy.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+from __future__ import annotations
+
+import ptpython.completer
+import ptpython.eventloop
+import ptpython.filters
+import ptpython.history_browser
+import ptpython.key_bindings
+import ptpython.layout
+import ptpython.python_input
+import ptpython.repl
+import ptpython.style
+import ptpython.utils
+import ptpython.validator
+
+# For now there are no tests here.
+# However this is sufficient to do at least a syntax check.
+
+
+def test_dummy() -> None:
+    assert ptpython.completer
+    assert ptpython.eventloop
+    assert ptpython.filters
+    assert ptpython.history_browser
+    assert ptpython.key_bindings
+    assert ptpython.layout
+    assert ptpython.python_input
+    assert ptpython.repl
+    assert ptpython.style
+    assert ptpython.utils
+    assert ptpython.validator