OPi Zero internal pullup/down error

[OperatorB]

Hi!
After a recent OS (dietpi) and firmware update on my OPi Zero, my python code stopped working. I found that the problem is around "GPIO.setup(..., pull_up_down=GPIO.PUD_UP)".
When I run the code it spits out "AttributeError: 'module' object has no attribute 'PUD_UP' ".
Probably I screwed up something but I could not figure out what.

my code:

#!/usr/bin/python
import OPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(11,GPIO.IN,pull_up_down=GPIO.PUD_UP)

when run with ./mycode.py it replies:

Traceback (most recent call last):
  File "./test.py", line 6, in <module>
    GPIO.setup(11,GPIO.IN,pull_up_down=GPIO.PUD_UP)
AttributeError: 'module' object has no attribute 'PUD_UP'

Thanks for reading ;)

[rm-hull]

If you do pip list | grep -i gpio on the command-line what does it show?

[OperatorB]

It replied:

DEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.
OPi.GPIO (0.3.1)

[rm-hull]

Ok, so you have the latest version. But you know that pull-up/down is not yet supported? See #9

However GPIO.PUD_UP should exist.

What version of python are you using?

[OperatorB]

All right, so there was no issue with it before the 'new' OPi firmware. Ok, thank you for the intel.

I'm using Python 2.7 (but 3.5 is installed as well). I will add externally a resistor then.