Add error handling and print traceback in RFID tests

The update introduces IOError specific exception handling in the RFID tests. It also prints a traceback for both IOError and general exceptions. This is done to better diagnose issues related to connectivity and IO in the tests as and when they occur. The code is also cleaned for better readability by fixing indentation and removing unnecessary comments and spaces.

src/test/rfid.py

@@ -2,6 +2,7 @@ import logging
 import platform
 import sys
 import time
+import traceback
 from datetime import datetime
 from pathlib import Path
 
@@ -10,7 +11,6 @@ import ndef
 import nfc
 from nfc.clf import RemoteTarget
 
-
 logging.basicConfig(
     format="{asctime}:{name}:{levelname}:{message}",
     datefmt="%Y-%m-%dT%H-%M-%S%z",
@@ -31,11 +31,11 @@ logging.basicConfig(
     **({"errors": "surrogateescape"} if sys.version_info.major >= 3 and sys.version_info.minor >= 10 else {}),
 )
 
-connected=False
+connected = False
 is_win = platform.system().lower() == "windows"
 
 if is_win:
-            dev_list=['com:COM5:pn532']
+    dev_list = ['com:COM5:pn532']
 else:
     dev_list = ['tty:USB0:pn532', 'tty:USB1:pn532', 'tty:USB2:pn532']
 while True:
@@ -80,10 +80,15 @@ while True:
                 print("NO TARGET")
         else:
             print("NOT CONNECTED")
+    except IOError as io_err:
+        print(f"IOError: {io_err}")
+        traceback.print_exc()
+        connected = False
     except Exception as e:
-            print(f"EXCEPTION {e}")
-            connected=False
+        print(f"General Exception: {e}")
+        traceback.print_exc()
+        connected = False
     time.sleep(1)
 
 print("EXITING")
-clf.close()
+clf.close()