ImportError cannot import name Pubnub

Question

I am trying to control an LED on my Raspberry Pi with the Pubnub platform. 

However, when I want to execute a Python file that imports the Pubnub library with the following line:

from pubnub import Pubnub

I get this error message:

ImportError: cannot import name Pubnub

I did everything exactly as told in the tutorial. I even copied the .py classes from their Github repository.

This is my class:

import RPi.GPIO as GPIO
import time
import sys
from pubnub import Pubnub

GPIO.setmode (GPIO.BCM)

LED_PIN = 17

GPIO.setup(LED_PIN,GPIO.OUT)

pubnub = Pubnub(publish_key='xxxx', subscribe_key='xxxx')

channel = 'disco'

def _callback(m, channel):
        print(m)
        if m['led'] == 1:
                for i in range(6):
                    GPIO.output(LED_PIN,True)
                    time.sleep(0.5)
                    GPIO.output(LED_PIN,False)
                    time.sleep(0.5)
                    print('blink')

def _error(m):
        print(m)

pubnub.subscribe(channels=channel, callback=_callback, error=_error)

Answer 1

If you're running into this since early November 2016; the pubnub API has changed in version 4.0.

from pubnub import Pubnub

does not work. It's now (to my best knowledge):

from pubnub.pubnub import PubNub