diff --git a/adafruit_mcp230xx/digital_inout.py b/adafruit_mcp230xx/digital_inout.py
index 4e07587..0877a31 100644
--- a/adafruit_mcp230xx/digital_inout.py
+++ b/adafruit_mcp230xx/digital_inout.py
@@ -112,9 +112,9 @@ def pull(self):
         try:
             if _get_bit(self._mcp.gppu, self._pin):
                 return digitalio.Pull.UP
-        except AttributeError:
+        except AttributeError as error:
             # MCP23016 doesn't have a `gppu` register.
-            raise ValueError("Pull-up/pull-down resistors not supported.")
+            raise ValueError("Pull-up/pull-down resistors not supported.") from error
         return None
 
     @pull.setter
@@ -128,6 +128,6 @@ def pull(self, val):
                 raise ValueError("Pull-down resistors are not supported!")
             else:
                 raise ValueError("Expected UP, DOWN, or None for pull state!")
-        except AttributeError:
+        except AttributeError as error:
             # MCP23016 doesn't have a `gppu` register.
-            raise ValueError("Pull-up/pull-down resistors not supported.")
+            raise ValueError("Pull-up/pull-down resistors not supported.") from error
diff --git a/adafruit_mcp230xx/mcp23008.py b/adafruit_mcp230xx/mcp23008.py
index 4fe0d01..d6f4abb 100644
--- a/adafruit_mcp230xx/mcp23008.py
+++ b/adafruit_mcp230xx/mcp23008.py
@@ -19,7 +19,6 @@
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_MCP230xx.git"
 
-# pylint: disable=bad-whitespace
 _MCP23008_ADDRESS = const(0x20)
 _MCP23008_IODIR = const(0x00)
 _MCP23008_IPOL = const(0x01)
diff --git a/adafruit_mcp230xx/mcp23016.py b/adafruit_mcp230xx/mcp23016.py
index 5991f91..04890d4 100644
--- a/adafruit_mcp230xx/mcp23016.py
+++ b/adafruit_mcp230xx/mcp23016.py
@@ -27,7 +27,6 @@
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_MCP230xx.git"
 
-# pylint: disable=bad-whitespace
 _MCP23016_ADDRESS = const(0x20)
 _MCP23016_GPIO0 = const(0x00)
 _MCP23016_GPIO1 = const(0x01)
diff --git a/adafruit_mcp230xx/mcp23017.py b/adafruit_mcp230xx/mcp23017.py
index 5914339..13289d6 100644
--- a/adafruit_mcp230xx/mcp23017.py
+++ b/adafruit_mcp230xx/mcp23017.py
@@ -19,7 +19,6 @@
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_MCP230xx.git"
 
-# pylint: disable=bad-whitespace
 _MCP23017_ADDRESS = const(0x20)
 _MCP23017_IODIRA = const(0x00)
 _MCP23017_IODIRB = const(0x01)