X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/ffd3c408c96ba0d34f7ba7a1a9068a8a4c68d0f7..c2bc4a90827f28abb6b51eae659a1f80a65c0497:/src/adafruit_blinka/microcontroller/nova/__init__.py

diff --git a/src/adafruit_blinka/microcontroller/nova/__init__.py b/src/adafruit_blinka/microcontroller/nova/__init__.py
index b644aa7..d6ab78c 100644
--- a/src/adafruit_blinka/microcontroller/nova/__init__.py
+++ b/src/adafruit_blinka/microcontroller/nova/__init__.py
@@ -1,24 +1,36 @@
+# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+"""Generic Connection class for Binho Nova to keep track of connection"""
+
+
 class Connection:
+    """Connection class"""
+
     __instance = None
+
     @staticmethod
     def getInstance():
-        """ Static access method. """
-        if Connection.__instance == None:
+        """Static access method."""
+        if Connection.__instance is None:
             Connection()
         return Connection.__instance
 
     def __init__(self):
-        """ Virtually private constructor. """
-        if Connection.__instance != None:
-            raise Exception("This class is a singleton!")
-        else:
-            from binhoHostAdapter import binhoHostAdapter
-            from binhoHostAdapter import binhoUtilities
+        """Virtually private constructor."""
+        if Connection.__instance is not None:
+            raise Exception(  # pylint: disable=broad-exception-raised
+                "This class is a singleton!"
+            )
+
+        # pylint: disable=import-outside-toplevel
+        from binhoHostAdapter import binhoHostAdapter
+        from binhoHostAdapter import binhoUtilities
 
-            utilities = binhoUtilities.binhoUtilities()
-            devices = utilities.listAvailableDevices()
+        # pylint: enable=import-outside-toplevel
+        devices = binhoUtilities.listAvailableDevices()
 
-            if len(devices) > 0:
-                Connection.__instance = binhoHostAdapter.binhoHostAdapter(devices[0])
-            else:
-                raise RuntimeError('No Binho Nova found!')
\ No newline at end of file
+        if len(devices) > 0:
+            Connection.__instance = binhoHostAdapter.binhoHostAdapter(devices[0])
+        else:
+            raise RuntimeError("No Binho Nova found!")