BME280 telegraf exec plugin

bme280.py

#!/usr/bin/env python3

import time
try:
    from smbus2 import SMBus
except ImportError:
    from smbus import SMBus
from bme280 import BME280

# Initialise the BME280
bus = SMBus(0)
bme280 = BME280(i2c_dev=bus)
temperature = bme280.get_temperature()
pressure = bme280.get_pressure()
humidity = bme280.get_humidity()
print('BME280,sensor=bme280 celsius={:05.2f},hPa={:05.2f},humidity={:02.2f}'.format(temperature, pressure, humidity))

Uses https://github.com/pimoroni/bme280-python/ and smbus2 to read values from an BME280 sensor and prints out influx line format.
you might wan't to add

chgrp telegraf /dev/i2c-0

to e.g. rc.local