Move imports in rpi_pfio component (#28094)

homeassistant/components/rpi_pfio/__init__.py

@@ -1,6 +1,8 @@
 """Support for controlling the PiFace Digital I/O module on a RPi."""
 import logging
 
+import pifacedigitalio as PFIO
+
 from homeassistant.const import EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP
 
 _LOGGER = logging.getLogger(__name__)
@@ -12,8 +14,6 @@ DATA_PFIO_LISTENER = "pfio_listener"
 
 def setup(hass, config):
     """Set up the Raspberry PI PFIO component."""
-    import pifacedigitalio as PFIO
-
     pifacedigital = PFIO.PiFaceDigital()
     hass.data[DATA_PFIO_LISTENER] = PFIO.InputEventListener(chip=pifacedigital)
 
@@ -33,22 +33,16 @@ def setup(hass, config):
 
 def write_output(port, value):
     """Write a value to a PFIO."""
-    import pifacedigitalio as PFIO
-
     PFIO.digital_write(port, value)
 
 
 def read_input(port):
     """Read a value from a PFIO."""
-    import pifacedigitalio as PFIO
-
     return PFIO.digital_read(port)
 
 
 def edge_detect(hass, port, event_callback, settle):
     """Add detection for RISING and FALLING events."""
-    import pifacedigitalio as PFIO
-
     hass.data[DATA_PFIO_LISTENER].register(
         port, PFIO.IODIR_BOTH, event_callback, settle_time=settle
     )

homeassistant/components/rpi_pfio/binary_sensor.py

@@ -3,8 +3,8 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.binary_sensor import PLATFORM_SCHEMA, BinarySensorDevice
 from homeassistant.components import rpi_pfio
+from homeassistant.components.binary_sensor import PLATFORM_SCHEMA, BinarySensorDevice
 from homeassistant.const import CONF_NAME, DEVICE_DEFAULT_NAME
 import homeassistant.helpers.config_validation as cv