Various refactorings.

Type hints, trailing backslash, range usage, etc.

tnc/audio.py

@@ -50,7 +50,7 @@ def fetch_audio_devices(input_devices, output_devices):
     """
     devices = sd.query_devices(device=None, kind=None)
     for index, device in enumerate(devices):
-        # Use a try/except block beacuse Windows doesn't have an audio device range
+        # Use a try/except block because Windows doesn't have an audio device range
         try:
             name = device["name"]
 

tnc/codec2.py

@@ -60,7 +60,6 @@ def freedv_get_mode_name_by_value(mode: int) -> str:
     """
     return FREEDV_MODE(mode).name
 
-
 # Check if we are running in a pyinstaller environment
 if hasattr(sys, "_MEIPASS"):
     sys.path.append(getattr(sys, "_MEIPASS"))
@@ -337,7 +336,6 @@ class resampler:
     """
     Re-sampler class
     """
-
     # Re-sample an array of variable length, we just store the filter memories here
     MEM8 = api.FDMDV_OS_TAPS_48_8K
     MEM48 = api.FDMDV_OS_TAPS_48K

tnc/daemon.py

@@ -49,6 +49,7 @@ def signal_handler(sig, frame):
 
 signal.signal(signal.SIGINT, signal_handler)
 
+signal.signal(signal.SIGINT, signal_handler)
 
 class DAEMON:
     """

tnc/data_handler.py

@@ -1392,7 +1392,8 @@ class DATA:
 
         self.IS_ARQ_SESSION_MASTER = False
         static.ARQ_SESSION = False
-        self.arq_cleanup()
+        if not TESTMODE:
+            self.arq_cleanup()
 
         self.send_disconnect_frame()
 
@@ -2080,6 +2081,11 @@ class DATA:
     def transmit_cq(self) -> None:
         """
         Transmit a CQ
+        Args:
+            Nothing
+
+        Returns:
+            Nothing
         """
         self.log.info("[TNC] CQ CQ CQ")
         self.send_data_to_socket_queue(
@@ -2266,11 +2272,11 @@ class DATA:
         """
         # reset ARQ statistics
         static.ARQ_BYTES_PER_MINUTE_BURST = 0
-        static.ARQ_BYTES_PER_MINUTE = 0
-        static.ARQ_BITS_PER_SECOND_BURST = 0
-        static.ARQ_BITS_PER_SECOND = 0
-        static.ARQ_TRANSMISSION_PERCENT = 0
-        static.TOTAL_BYTES = 0
+        static.ARQ_BYTES_PER_MINUTE       = 0
+        static.ARQ_BITS_PER_SECOND_BURST  = 0
+        static.ARQ_BITS_PER_SECOND        = 0
+        static.ARQ_TRANSMISSION_PERCENT   = 0
+        static.TOTAL_BYTES                = 0
 
     def calculate_transfer_rate_tx(
         self, tx_start_of_transmission: float, sentbytes: int, tx_buffer_length: int

tnc/helpers.py

@@ -7,6 +7,8 @@ Created on Fri Dec 25 21:25:14 2020
 import time
 
 import crcengine
+import structlog
+
 import static
 import structlog
 
@@ -27,7 +29,6 @@ def wait(seconds: float) -> bool:
         time.sleep(0.01)
     return True
 
-
 def get_crc_8(data) -> bytes:
     """Author: DJ2LS
 
@@ -46,7 +47,6 @@ def get_crc_8(data) -> bytes:
     crc_data = crc_data.to_bytes(1, byteorder="big")
     return crc_data
 
-
 def get_crc_16(data) -> bytes:
     """Author: DJ2LS
 
@@ -65,7 +65,6 @@ def get_crc_16(data) -> bytes:
     crc_data = crc_data.to_bytes(2, byteorder="big")
     return crc_data
 
-
 def get_crc_24(data) -> bytes:
     """Author: DJ2LS
 
@@ -93,7 +92,6 @@ def get_crc_24(data) -> bytes:
     crc_data = crc_data.to_bytes(3, byteorder="big")
     return crc_data
 
-
 def get_crc_32(data: bytes) -> bytes:
     """Author: DJ2LS
 
@@ -166,7 +164,6 @@ def add_to_heard_stations(dxcallsign, dxgrid, datatype, snr, offset, frequency):
 #            item = [dxcallsign, int(time.time())]
 #            static.HEARD_STATIONS[idx] = item
 
-
 def callsign_to_bytes(callsign) -> bytes:
     """
 

tnc/sock.py

@@ -49,6 +49,7 @@ class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
 
 class ThreadedTCPRequestHandler(socketserver.StreamRequestHandler):
     """ """
+    connection_alive = False
 
     connection_alive = False
     log = structlog.get_logger("ThreadedTCPRequestHandler")
@@ -182,7 +183,6 @@ class ThreadedTCPRequestHandler(socketserver.StreamRequestHandler):
                 client=self.request,
             )
 
-
 def process_tnc_commands(data):
     """
     process tnc commands