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, 4 insertions, 3 deletions

diff --git a/tests/float/math_factorial_intbig.py b/tests/float/math_factorial_intbig.py
index 19d853df2a..a4694b3d68 100644
--- a/tests/float/math_factorial_intbig.py
+++ b/tests/float/math_factorial_intbig.py
@@ -1,14 +1,15 @@
 try:
     import math
+
     math.factorial
 except (ImportError, AttributeError):
-    print('SKIP')
+    print("SKIP")
     raise SystemExit
 
 
 for fun in (math.factorial,):
     for x in range(-1, 30):
         try:
-            print('%d' % fun(x))
+            print("%d" % fun(x))
         except ValueError as e:
-            print('ValueError')
+            print("ValueError")