run pre-commit

Author: tannewt

adafruit_ntp.py

@@ -27,20 +27,28 @@
 
 NTP_TO_UNIX_EPOCH = 2208988800  # 1970-01-01 00:00:00
 
+
 class NTP:
     """Network Time Protocol (NTP) helper module for CircuitPython.
     This module does not handle daylight savings or local time. It simply requests
     UTC from a NTP server.
     """
 
-    def __init__(self, socketpool, *, server: str="0.adafruit.pool.ntp.org", port: int = 123, tz_offset: int = 0) -> None:
+    def __init__(
+        self,
+        socketpool,
+        *,
+        server: str = "0.adafruit.pool.ntp.org",
+        port: int = 123,
+        tz_offset: int = 0,
+    ) -> None:
         """
         :param object socketpool: A socket provider such as CPython's `socket` module.
         :param str server: The domain of the ntp server to query.
         :param int port: The port of the ntp server to query.
         :param float tz_offset: Timezone offset in hours from UTC. Only useful for timezone ignorant
-            CircuitPython. CPython will determine timezone automatically and adjust (so don't use this.)
-            For example, Pacific daylight savings time is -7.
+            CircuitPython. CPython will determine timezone automatically and adjust (so don't use
+            this.) For example, Pacific daylight savings time is -7.
         """
         self._pool = socketpool
         self._server = server
@@ -56,19 +64,29 @@ def __init__(self, socketpool, *, server: str="0.adafruit.pool.ntp.org", port: i
 
     @property
     def datetime(self) -> time.struct_time:
+        """Current time from NTP server."""
         if time.monotonic_ns() > self.next_sync:
             self._packet[0] = 0b00100011  # Not leap second, NTP version 4, Client mode
             for i in range(1, len(self._packet)):
                 self._packet[i] = 0
             with self._pool.socket(self._pool.AF_INET, self._pool.SOCK_DGRAM) as sock:
                 sock.sendto(self._packet, (self._server, self._port))
-                size, address = sock.recvfrom_into(self._packet)
+                sock.recvfrom_into(self._packet)
                 # Get the time in the context to minimize the difference between it and receiving
                 # the packet.
                 destination = time.monotonic_ns()
             poll = struct.unpack_from("!B", self._packet, offset=2)[0]
-            self.next_sync = destination + (2 ** poll) * 1_000_000_000
-            seconds = struct.unpack_from("!I", self._packet, offset=len(self._packet) - 8)[0]
-            self._monotonic_start = seconds + self._tz_offset - NTP_TO_UNIX_EPOCH - (destination // 1_000_000_000)
+            self.next_sync = destination + (2**poll) * 1_000_000_000
+            seconds = struct.unpack_from(
+                "!I", self._packet, offset=len(self._packet) - 8
+            )[0]
+            self._monotonic_start = (
+                seconds
+                + self._tz_offset
+                - NTP_TO_UNIX_EPOCH
+                - (destination // 1_000_000_000)
+            )
 
-        return time.localtime(time.monotonic_ns() // 1_000_000_000 + self._monotonic_start)
+        return time.localtime(
+            time.monotonic_ns() // 1_000_000_000 + self._monotonic_start
+        )

examples/ntp_cpython.py

@@ -1,12 +1,13 @@
-"""Tests NTP with CPython socket"""
-
 # SPDX-FileCopyrightText: 2022 Scott Shawcroft for Adafruit Industries
 # SPDX-License-Identifier: MIT
 
-import adafruit_ntp
+"""Tests NTP with CPython socket"""
+
 import socket
 import time
 
+import adafruit_ntp
+
 # Don't use tz_offset kwarg with CPython because it will adjust automatically.
 ntp = adafruit_ntp.NTP(socket)
 

examples/ntp_set_rtc.py

@@ -3,12 +3,14 @@
 
 """Example demonstrating how to set the realtime clock (RTC) based on NTP time."""
 
-import adafruit_ntp
+import time
+
 import rtc
 import socketpool
-import time
 import wifi
 
+import adafruit_ntp
+
 # Get wifi details and more from a secrets.py file
 try:
     from secrets import secrets

examples/ntp_simpletest.py

@@ -3,11 +3,13 @@
 
 """Print out time based on NTP."""
 
-import adafruit_ntp
-import socketpool
 import time
+
+import socketpool
 import wifi
 
+import adafruit_ntp
+
 # Get wifi details and more from a secrets.py file
 try:
     from secrets import secrets
@@ -23,4 +25,3 @@
 while True:
     print(ntp.datetime)
     time.sleep(1)
-

requirements.txt

@@ -1,4 +1,3 @@
 # SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 #
 # SPDX-License-Identifier: Unlicense
-