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, 19 insertions, 8 deletions

diff --git a/tests/micropython/heapalloc.py b/tests/micropython/heapalloc.py
index f74bb92c8..99f157105 100644
--- a/tests/micropython/heapalloc.py
+++ b/tests/micropython/heapalloc.py
@@ -5,18 +5,26 @@ import micropython
 # Check for stackless build, which can't call functions without
 # allocating a frame on heap.
 try:
-    def stackless(): pass
-    micropython.heap_lock(); stackless(); micropython.heap_unlock()
+
+    def stackless():
+        pass
+
+    micropython.heap_lock()
+    stackless()
+    micropython.heap_unlock()
 except RuntimeError:
     print("SKIP")
     raise SystemExit
 
+
 def f1(a):
     print(a)
 
+
 def f2(a, b=2):
     print(a, b)
 
+
 def f3(a, b, c, d):
     x1 = x2 = a
     x3 = x4 = b
@@ -24,19 +32,22 @@ def f3(a, b, c, d):
     x7 = x8 = d
     print(x1, x3, x5, x7, x2 + x4 + x6 + x8)
 
+
 global_var = 1
 
+
 def test():
     global global_var, global_exc
-    global_var = 2      # set an existing global variable
+    global_var = 2  # set an existing global variable
     for i in range(2):  # for loop
-        f1(i)           # function call
-        f1(i * 2 + 1)   # binary operation with small ints
-        f1(a=i)         # keyword arguments
-        f2(i)           # default arg (second one)
-        f2(i, i)        # 2 args
+        f1(i)  # function call
+        f1(i * 2 + 1)  # binary operation with small ints
+        f1(a=i)  # keyword arguments
+        f2(i)  # default arg (second one)
+        f2(i, i)  # 2 args
     f3(1, 2, 3, 4)  # function with lots of local state
 
+
 # call test() with heap allocation disabled
 micropython.heap_lock()
 test()