tests: Format all Python code with black, except tests in basics subdir.

This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.

1 files changed, 6 insertions, 1 deletions

diff --git a/tests/cpydiff/core_class_supermultiple.py b/tests/cpydiff/core_class_supermultiple.py
index f0823ee11d..9a87b85a87 100644
--- a/tests/cpydiff/core_class_supermultiple.py
+++ b/tests/cpydiff/core_class_supermultiple.py
@@ -4,24 +4,29 @@ description: When inheriting from multiple classes super() only calls one class
 cause: See :ref:`cpydiff_core_class_mro`
 workaround: See :ref:`cpydiff_core_class_mro`
 """
+
+
 class A:
     def __init__(self):
         print("A.__init__")
 
+
 class B(A):
     def __init__(self):
         print("B.__init__")
         super().__init__()
 
+
 class C(A):
     def __init__(self):
         print("C.__init__")
         super().__init__()
 
 
-class D(B,C):
+class D(B, C):
     def __init__(self):
         print("D.__init__")
         super().__init__()
 
+
 D()