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, 5 insertions, 2 deletions

diff --git a/tests/micropython/viper_subscr.py b/tests/micropython/viper_subscr.py
index 2198ed731..bcaabd3fb 100644
--- a/tests/micropython/viper_subscr.py
+++ b/tests/micropython/viper_subscr.py
@@ -1,15 +1,18 @@
 # test standard Python subscr using viper types
 
+
 @micropython.viper
-def get(dest, i:int):
+def get(dest, i: int):
     i += 1
     return dest[i]
 
+
 @micropython.viper
-def set(dest, i:int, val:int):
+def set(dest, i: int, val: int):
     i += 1
     dest[i] = val + 1
 
+
 ar = [i for i in range(3)]
 
 for i in range(len(ar)):