LINT fixes for LCD plugins

platypush/plugins/lcd/__init__.py

@@ -1,16 +1,9 @@
 from abc import ABC, abstractmethod
-from enum import Enum
 from typing import List, Optional
 
 from platypush.plugins import Plugin, action
 
 
-class PinMode(Enum):
-    import RPi.GPIO
-    BOARD = RPi.GPIO.BOARD
-    BCM = RPi.GPIO.BCM
-
-
 class LcdPlugin(Plugin, ABC):
     """
     Abstract class for plugins to communicate with LCD displays.
@@ -21,23 +14,20 @@ class LcdPlugin(Plugin, ABC):
         * **RPi.GPIO** (``pip install RPi.GPIO``)
 
     """
-    import RPLCD.lcd
-
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
         self.lcd = None
 
     @staticmethod
     def _get_pin_mode(pin_mode: str) -> int:
+        import RPi.GPIO
+        pin_modes = ['BOARD', 'BCM']
         pin_mode = pin_mode.upper()
-        assert hasattr(PinMode, pin_mode), \
-            'Invalid pin_mode: {}. Supported modes: {}'.format(
-                pin_mode, list([mode.name for mode in PinMode if mode.name != 'RPi']))
-
-        return getattr(PinMode, pin_mode).value
+        assert pin_mode in pin_modes, 'Invalid pin_mode: {}. Supported modes: {}'.format(pin_mode, pin_modes)
+        return getattr(RPi.GPIO, pin_mode).value
 
     @abstractmethod
-    def _get_lcd(self) -> RPLCD.lcd.BaseCharLCD:
+    def _get_lcd(self):
         pass
 
     def _init_lcd(self):

platypush/plugins/lcd/gpio.py

@@ -1,6 +1,5 @@
 from typing import List, Optional
 
-from platypush.plugins import action
 from platypush.plugins.lcd import LcdPlugin
 
 

platypush/plugins/lcd/i2c.py

@@ -1,6 +1,5 @@
-from typing import List, Optional
+from typing import Optional
 
-from platypush.plugins import action
 from platypush.plugins.lcd import LcdPlugin