neopixel_cleanup should be called on deinit() #98
Description
The neopixel_cleanup from the underlying neopixel_write module method should be called on deinit(). Without this call it is not possible to change the pixel lengths in the same process. The neopixel_cleanup method is called atexit, but it is likely desirable to have it just happen on the deinit method.
Ex:
The LEDs will never turn WHITE in this example:
import neopixel # pylint: disable=import-error
import time
import board
gpio_port = board.D18
pixels = neopixel.NeoPixel(gpio_port, 5, auto_write=False)
## Turn the first 5 pixels RED.
pixels.fill((255,0,0))
pixels.show()
time.sleep(3)
## Turn the first 3 pixels WHITE.
pixels.deinit()
pixels = neopixel.NeoPixel(gpio_port, 3, auto_write=False)
pixels.fill((255,255,255))
pixels.show()
time.sleep(3)
This will likely require an upstream change to adafruit Blinka, as the neopixel_cleanup method is not exposed in the non-board specific python file.