Reformat Python files using black, isort and flake8.

src/apps/common/request_pin.py

@@ -11,7 +11,9 @@ class PinCancelled(Exception):
 
 
 @ui.layout
-async def request_pin(label=None, attempts_remaining=None, cancellable: bool = True) -> str:
+async def request_pin(
+    label=None, attempts_remaining=None, cancellable: bool = True
+) -> str:
     def onchange():
         c = dialog.cancel
         if matrix.pin:

src/apps/common/storage.py

@@ -32,6 +32,7 @@ _AUTOLOCK_DELAY_MS  = const(0x0C)  # int
 _NO_BACKUP          = const(0x0D)  # bool (0x01 or empty)
 # fmt: on
 
+
 def _set_bool(app: int, key: int, value: bool, public: bool = False) -> None:
     if value:
         config.set(app, key, _TRUE_BYTE, public)
@@ -48,27 +49,27 @@ def _set_counter(app: int, key: int, count: int, public: bool = False) -> None:
     if public:
         value += _COUNTER_TAIL_LEN * b"\xff"
     config.set(app, key, value, public)
-    
+
 
 def _next_counter(app: int, key: int, public: bool = False) -> int:
-# If the counter value is public, then it is stored as a four byte integer in
-# big endian byte order, called the "head", followed an eight byte "tail". The
-# counter value is equal to the integer value of the head plus the number of
-# zero bits in the tail. The counter value 0 is stored as 00000000FFFFFFFFFFFFFFFF.
-# With each increment the tail is shifted to the right by one bit. Thus after
-# three increments the stored value is 000000001FFFFFFFFFFFFFFF. Once all the
-# bits in the tail are set to zero, the next counter value is stored as
-# 00000021FFFFFFFFFFFFFFFF.
+    # If the counter value is public, then it is stored as a four byte integer in
+    # big endian byte order, called the "head", followed an eight byte "tail". The
+    # counter value is equal to the integer value of the head plus the number of
+    # zero bits in the tail. The counter value 0 is stored as 00000000FFFFFFFFFFFFFFFF.
+    # With each increment the tail is shifted to the right by one bit. Thus after
+    # three increments the stored value is 000000001FFFFFFFFFFFFFFF. Once all the
+    # bits in the tail are set to zero, the next counter value is stored as
+    # 00000021FFFFFFFFFFFFFFFF.
 
     value = config.get(app, key, public)
     if value is None:
         _set_counter(app, key, 0, public)
         return 0
 
-    head = value[: _COUNTER_HEAD_LEN]
-    tail = value[_COUNTER_HEAD_LEN :]
+    head = value[:_COUNTER_HEAD_LEN]
+    tail = value[_COUNTER_HEAD_LEN:]
     i = tail.rfind(b"\x00") + 1
-    count = int.from_bytes(head, "big") + 1 + 8*i
+    count = int.from_bytes(head, "big") + 1 + 8 * i
     if i == len(tail):
         _set_counter(app, key, count, public)
         return count
@@ -78,7 +79,7 @@ def _next_counter(app: int, key: int, public: bool = False) -> int:
         zero_count += 1
     count += zero_count
 
-    tail = tail[:i] + bytes([tail[i] >> 1]) + tail[i+1:]
+    tail = tail[:i] + bytes([tail[i] >> 1]) + tail[i + 1 :]
     config.set(app, key, head + tail, public)
     return count
 
@@ -100,7 +101,7 @@ def is_initialized() -> bool:
 
 
 def get_label() -> str:
-    label = config.get(_APP, _LABEL, True) # public
+    label = config.get(_APP, _LABEL, True)  # public
     if label is None:
         return None
     return label.decode()

src/boot.py

@@ -1,8 +1,8 @@
 from trezor import config, log, loop, res, ui
 from trezor.pin import pin_to_int, show_pin_timeout
 
-from apps.common.request_pin import request_pin
 from apps.common import storage
+from apps.common.request_pin import request_pin
 
 
 async def bootscreen():

src/trezor/ui/pin.py

@@ -64,7 +64,9 @@ class PinMatrix(ui.Widget):
         elif self.sublabel:
             # input line with header label and sublabel
             display.text_center(ui.WIDTH // 2, 20, self.label, ui.BOLD, ui.GREY, ui.BG)
-            display.text_center(ui.WIDTH // 2, 46, self.sublabel, ui.NORMAL, ui.GREY, ui.BG)
+            display.text_center(
+                ui.WIDTH // 2, 46, self.sublabel, ui.NORMAL, ui.GREY, ui.BG
+            )
         else:
             # input line with header label
             display.text_center(ui.WIDTH // 2, 36, self.label, ui.BOLD, ui.GREY, ui.BG)