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.

tests/cmdline/cmd_parsetree.py

@@ -4,9 +4,9 @@
 for i in ():
     pass
 a = None
-b = 'str'
-c = 'a very long str that will not be interned'
-d = b'bytes'
-e = b'a very long bytes that will not be interned'
+b = "str"
+c = "a very long str that will not be interned"
+d = b"bytes"
+e = b"a very long bytes that will not be interned"
 f = 123456789012345678901234567890
 g = 123

tests/cmdline/cmd_showbc.py

@@ -1,5 +1,6 @@
 # cmdline: -v -v
 # test printing of all bytecodes
+# fmt: off
 
 def f():
     # constants

tests/cmdline/cmd_showbc.py.exp

@@ -7,7 +7,7 @@ arg names:
 (N_EXC_STACK 0)
   bc=0 line=1
 ########
-  bc=\\d\+ line=159
+  bc=\\d\+ line=160
 00 MAKE_FUNCTION \.\+
 \\d\+ STORE_NAME f
 \\d\+ MAKE_FUNCTION \.\+
@@ -45,7 +45,7 @@ Raw bytecode (code_info_size=\\d\+, bytecode_size=\\d\+):
 (INIT_CELL 16)
   bc=0 line=1
 ########
-  bc=\\d\+ line=126
+  bc=\\d\+ line=127
 00 LOAD_CONST_NONE
 01 LOAD_CONST_FALSE
 02 BINARY_OP 27 __add__
@@ -320,7 +320,7 @@ Raw bytecode (code_info_size=\\d\+, bytecode_size=\\d\+):
 (N_EXC_STACK 0)
   bc=0 line=1
 ########
-  bc=\\d\+ line=132
+  bc=\\d\+ line=133
 00 LOAD_CONST_SMALL_INT 1
 01 DUP_TOP
 02 STORE_FAST 0
@@ -376,7 +376,7 @@ arg names: a
 (N_EXC_STACK 0)
 (INIT_CELL 0)
 ########
-  bc=\\d\+ line=138
+  bc=\\d\+ line=139
 00 LOAD_CONST_SMALL_INT 2
 01 BUILD_TUPLE 1
 03 LOAD_NULL
@@ -393,9 +393,9 @@ arg names:
 (N_STATE 2)
 (N_EXC_STACK 0)
   bc=0 line=1
-  bc=0 line=143
-  bc=3 line=144
-  bc=6 line=145
+  bc=0 line=144
+  bc=3 line=145
+  bc=6 line=146
 00 LOAD_CONST_NONE
 01 YIELD_VALUE
 02 POP_TOP
@@ -418,7 +418,7 @@ arg names:
 (N_EXC_STACK 0)
   bc=0 line=1
 ########
-  bc=13 line=149
+  bc=13 line=150
 00 LOAD_NAME __name__ (cache=0)
 04 STORE_NAME __module__
 07 LOAD_CONST_STRING 'Class'
@@ -433,7 +433,7 @@ arg names: self
 (N_STATE 4)
 (N_EXC_STACK 0)
   bc=0 line=1
-  bc=0 line=156
+  bc=0 line=157
 00 LOAD_GLOBAL super (cache=0)
 \\d\+ LOAD_GLOBAL __class__ (cache=0)
 \\d\+ LOAD_FAST 0
@@ -450,7 +450,7 @@ arg names: * * *
 (N_STATE 9)
 (N_EXC_STACK 0)
   bc=0 line=1
-  bc=0 line=59
+  bc=0 line=60
 ########
 00 LOAD_NULL
 01 LOAD_FAST 2
@@ -474,7 +474,7 @@ arg names: * * *
 (N_STATE 10)
 (N_EXC_STACK 0)
   bc=0 line=1
-  bc=0 line=60
+  bc=0 line=61
 ########
 00 BUILD_LIST 0
 02 LOAD_FAST 2
@@ -517,7 +517,7 @@ arg names: *
 (N_EXC_STACK 0)
   bc=0 line=1
 ########
-  bc=\\d\+ line=113
+  bc=\\d\+ line=114
 00 LOAD_DEREF 0
 02 LOAD_CONST_SMALL_INT 1
 03 BINARY_OP 27 __add__
@@ -536,7 +536,7 @@ arg names: * b
 (N_EXC_STACK 0)
   bc=0 line=1
 ########
-  bc=\\d\+ line=139
+  bc=\\d\+ line=140
 00 LOAD_FAST 1
 01 LOAD_DEREF 0
 03 BINARY_OP 27 __add__

tests/cpydiff/core_class_delnotimpl.py

@@ -6,9 +6,11 @@ workaround: Unknown
 """
 import gc
 
-class Foo():
+
+class Foo:
     def __del__(self):
-        print('__del__')
+        print("__del__")
+
 
 f = Foo()
 del f

tests/cpydiff/core_class_mro.py

@@ -4,12 +4,16 @@ description: Method Resolution Order (MRO) is not compliant with CPython
 cause: Depth first non-exhaustive method resolution order
 workaround: Avoid complex class hierarchies with multiple inheritance and complex method overrides. Keep in mind that many languages don't support multiple inheritance at all.
 """
+
+
 class Foo:
     def __str__(self):
         return "Foo"
 
+
 class C(tuple, Foo):
     pass
 
+
 t = C((1, 2, 3))
 print(t)

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()

tests/cpydiff/core_class_superproperty.py

@@ -4,15 +4,19 @@ description: Calling super() getter property in subclass will return a property
 cause: Unknown
 workaround: Unknown
 """
+
+
 class A:
     @property
     def p(self):
-        return {"a":10}
+        return {"a": 10}
+
 
 class AA(A):
     @property
     def p(self):
         return super().p
 
+
 a = AA()
 print(a.p)

tests/cpydiff/core_function_userattr.py

@@ -4,8 +4,11 @@ description: User-defined attributes for functions are not supported
 cause: MicroPython is highly optimized for memory usage.
 workaround: Use external dictionary, e.g. ``FUNC_X[f] = 0``.
 """
+
+
 def f():
     pass
 
+
 f.x = 0
 print(f.x)

tests/cpydiff/core_generator_noexit.py

@@ -4,11 +4,15 @@ description: Context manager __exit__() not called in a generator which does not
 cause: Unknown
 workaround: Unknown
 """
+
+
 class foo(object):
     def __enter__(self):
-        print('Enter')
+        print("Enter")
+
     def __exit__(self, *args):
-        print('Exit')
+        print("Exit")
+
 
 def bar(x):
     with foo():
@@ -16,9 +20,11 @@ def bar(x):
             x += 1
             yield x
 
+
 def func():
     g = bar(0)
     for _ in range(3):
         print(next(g))
 
+
 func()

tests/cpydiff/core_import_prereg.py

@@ -12,6 +12,7 @@ except NameError as e:
     print(e)
 try:
     from modules import foo
-    print('Should not get here')
+
+    print("Should not get here")
 except NameError as e:
     print(e)

tests/cpydiff/core_import_split_ns_pkgs.py

@@ -5,6 +5,7 @@ cause: MicroPython's import system is highly optimized for simplicity, minimal m
 workaround: Don't install modules belonging to the same namespace package in different directories. For MicroPython, it's recommended to have at most 3-component module search paths: for your current application, per-user (writable), system-wide (non-writable).
 """
 import sys
+
 sys.path.append(sys.path[1] + "/modules")
 sys.path.append(sys.path[1] + "/modules2")
 

tests/cpydiff/core_locals.py

@@ -4,8 +4,11 @@ description: Local variables aren't included in locals() result
 cause: MicroPython doesn't maintain symbolic local environment, it is optimized to an array of slots. Thus, local variables can't be accessed by a name.
 workaround: Unknown
 """
+
+
 def test():
     val = 2
     print(locals())
 
+
 test()

tests/cpydiff/core_locals_eval.py

@@ -6,9 +6,11 @@ workaround: Unknown
 """
 val = 1
 
+
 def test():
     val = 2
     print(val)
     eval("print(val)")
 
+
 test()

tests/cpydiff/modules/foo.py

@@ -1,2 +1,2 @@
-print('foo')
+print("foo")
 xxx

tests/cpydiff/modules_array_containment.py

@@ -5,4 +5,5 @@ cause: Unknown
 workaround: Unknown
 """
 import array
-print(1 in array.array('B', b'12'))
+
+print(1 in array.array("B", b"12"))

tests/cpydiff/modules_array_deletion.py

@@ -5,6 +5,7 @@ cause: Unknown
 workaround: Unknown
 """
 import array
-a = array.array('b', (1, 2, 3))
+
+a = array.array("b", (1, 2, 3))
 del a[1]
 print(a)

tests/cpydiff/modules_array_subscrstep.py

@@ -5,5 +5,6 @@ cause: Unknown
 workaround: Unknown
 """
 import array
-a = array.array('b', (1, 2, 3))
+
+a = array.array("b", (1, 2, 3))
 print(a[3:2:2])

tests/cpydiff/modules_deque.py

@@ -5,5 +5,6 @@ cause: Unknown
 workaround: Use regular lists. micropython-lib has implementation of collections.deque.
 """
 import collections
+
 D = collections.deque()
 print(D)

tests/cpydiff/modules_json_nonserializable.py

@@ -5,10 +5,11 @@ cause: Unknown
 workaround: Unknown
 """
 import json
+
 a = bytes(x for x in range(256))
 try:
     z = json.dumps(a)
     x = json.loads(z)
-    print('Should not get here')
+    print("Should not get here")
 except TypeError:
-    print('TypeError')
+    print("TypeError")

tests/cpydiff/modules_os_environ.py

@@ -5,12 +5,13 @@ cause: Unknown
 workaround: Use ``getenv``, ``putenv`` and ``unsetenv``
 """
 import os
+
 try:
-    print(os.environ.get('NEW_VARIABLE'))
-    os.environ['NEW_VARIABLE'] = 'VALUE'
-    print(os.environ['NEW_VARIABLE'])
+    print(os.environ.get("NEW_VARIABLE"))
+    os.environ["NEW_VARIABLE"] = "VALUE"
+    print(os.environ["NEW_VARIABLE"])
 except AttributeError:
-    print('should not get here')
-    print(os.getenv('NEW_VARIABLE'))
-    os.putenv('NEW_VARIABLE', 'VALUE')
-    print(os.getenv('NEW_VARIABLE'))
+    print("should not get here")
+    print(os.getenv("NEW_VARIABLE"))
+    os.putenv("NEW_VARIABLE", "VALUE")
+    print(os.getenv("NEW_VARIABLE"))