# Weather hat software errors **URL:** \ **Category:** Raspberry Pi\ **Created:** [May 22, 2023, 6:18pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213 "2023-05-22T18:18:02Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![jamachine](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@jamachine](https://forums.pimoroni.com/u/jamachine)\ **Post date:** [May 22, 2023, 6:18pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/1 "2023-05-22T18:18:02Z")
Hello , Really new to raspi, i followed all of the install of software the hello world works and button test but nothing else just installed the os today and updated and this is what i get Traceback (most recent call last): File “/home/duh/weatherhat-python/examples/weather.py”, line 13, in import weatherhat File “/home/duh/.local/lib/python3.9/site-packages/weatherhat/ **init**.py”, line 6, in import ioexpander as io File “/home/duh/.local/lib/python3.9/site-packages/ioexpander/ **init**.py”, line 3, in from smbus2 import SMBus, i2c\_msg can anybody help me ---
**Author:** ![ahnlak](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/ahnlak/32/5610_2.png) [@ahnlak](https://forums.pimoroni.com/u/ahnlak)\ **Post date:** [May 24, 2023, 11:02am UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/2 "2023-05-24T11:02:48Z")
Unfortunately, you’ve clipped off the first line of that error message that would have told us what the problem actually is, but at a guess… have you enabled i2c on your Pi? ---
**Author:** ![jamachine](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@jamachine](https://forums.pimoroni.com/u/jamachine)\ **Post date:** [May 24, 2023, 3:05pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/3 "2023-05-24T15:05:29Z")
Thanks for the reply But that is all that it shows Here is line it is referring to #!/usr/bin/env python3 import math import pathlib import time import yaml import RPi.GPIO as GPIO import ST7789 from fonts.ttf import ManropeBold as UserFont from PIL import Image, ImageDraw, ImageFont import weatherhat this is line 13 from weatherhat import history Thanks Stan ---
**Author:** ![ahnlak](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/ahnlak/32/5610_2.png) [@ahnlak](https://forums.pimoroni.com/u/ahnlak)\ **Post date:** [May 24, 2023, 3:40pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/4 "2023-05-24T15:40:48Z")
There should have been an actual error message after the traceback block you posted - something along the lines of `OSError:` or `RuntimeError:`. The traceback is great for telling us _where_ the problem happened, but it makes diagnosis a lot easier when we know _what_ happened too :-) Given you have things like Hello World working, the most likely remains a failure to enable i2c - the installer usually does it for you, but double check in `raspi-config`, under `Interfacing Options` ---
**Author:** ![jamachine](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@jamachine](https://forums.pimoroni.com/u/jamachine)\ **Post date:** [May 24, 2023, 4:20pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/5 "2023-05-24T16:20:39Z")
> ``` from smbus2 import SMBus, i2c_msg ``` ModuleNotFoundError: No module named ‘smbus2’ > > > here is what i just did duh@weather:~ $ sudo i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: – – – – – – – – 10: – – 12 – – – – – – – – – – – – – 20: – – – 23 – – – – – – – – – – – – 30: – – – – – – – – – – – – – – – – 40: – – – – – – – – – – – – – – – – 50: – – – – – – – – – – – – – – – – 60: – – – – – – – – – – – – – – – – 70: – – – – – – 76 – duh@weather:~ $ sudo apt-get install python-smbus Reading package lists… Done Building dependency tree… Done Reading state information… Done Package python-smbus is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package ‘python-smbus’ has no installation candidate duh@weather:~ $ import smbus bash: import: command not found Thanks Stan ---
**Author:** ![hel](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/hel/32/6075_2.png) [@hel](https://forums.pimoroni.com/u/hel)\ **Post date:** [May 24, 2023, 4:35pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/6 "2023-05-24T16:35:30Z")
Try `python3 -m pip install smbus2` :) ---
**Author:** ![jamachine](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@jamachine](https://forums.pimoroni.com/u/jamachine)\ **Post date:** [May 24, 2023, 5:09pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/7 "2023-05-24T17:09:08Z")
well that solved that but now i get this Traceback (most recent call last): File “/home/duh/weatherhat-python/examples/weather.py”, line 740, in main() File “/home/duh/weatherhat-python/examples/weather.py”, line 709, in main sensordata = SensorData() File “/home/duh/weatherhat-python/examples/weather.py”, line 649, in **init** self.sensor = weatherhat.WeatherHAT() File “/usr/local/lib/python3.9/dist-packages/weatherhat/ **init**.py”, line 81, in **init** self.\_ioe.on\_interrupt(self.handle\_ioe\_interrupt) File “/usr/local/lib/python3.9/dist-packages/ioexpander/ **init**.py”, line 410, in on\_interrupt self.\_gpio.add\_event\_detect(self.\_interrupt\_pin, self.\_gpio.FALLING, callback=callback, bouncetime=1) RuntimeError: Failed to add edge detection > > > Thanks Stan ---
**Author:** ![jamachine](https://avatars.discourse-cdn.com/v4/letter/j/919ad9/32.png) [@jamachine](https://forums.pimoroni.com/u/jamachine)\ **Post date:** [May 24, 2023, 5:39pm UTC](https://forums.pimoroni.com/t/weather-hat-software-errors/22213/8 "2023-05-24T17:39:16Z")
Thanks Everybody went and reinstalled the hat and it now works Thanks Stan