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, 0 deletions

diff --git a/tests/pybnative/for.py b/tests/pybnative/for.py
index 309c6c14f..50177a9ba 100644
--- a/tests/pybnative/for.py
+++ b/tests/pybnative/for.py
@@ -1,15 +1,19 @@
 import pyb
 
+
 @micropython.native
 def f1(n):
     for i in range(n):
         print(i)
 
+
 f1(4)
 
+
 @micropython.native
 def f2(r):
     for i in r:
         print(i)
 
+
 f2(range(4))