RasPi 4 + Grove TDS sensor code (No module named grove.adc)

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I was hoping to get some help with my TDS sensor I have tried everything in the comments thus far TDS is plugged into A0

#!/usr/bin/env python3

import math
import sys
import time

from grove.i2c import Bus
from grove.adc import ADC

class GroveTDS:

def __init__(self, channel):
    self.channel = channel
    self.adc = ADC()

@property
def TDS(self):
    value = self.adc.read(self.channel)
    if value != 0:
        voltage = value*5/1024.0
        tdsValue = (133.42/voltage*voltage*voltage-255.86*voltage*voltage+857.39*voltage)*0.5
        return tdsValue
    else:
        return 0

Grove = GroveTDS

def main():
if len(sys.argv) < 2:
print(‘Usage: {} adc_channel’.format(sys.argv[0]))
sys.exit(1)
#else:
# print(sys.argv)

sensor = GroveTDS(int(sys.argv[1]))
print('Detecting TDS on port A{}...'.format(sys.argv[1]))

while True:
    try:
        print('TDS Value: {}'.format(sensor.TDS))
        time.sleep(1)
    except:
        print('Not found')
        time.sleep(1)

if name == ‘main’:
main()

Thanks!