title: User does not have bigquery.datasets.update permission
body: <p>I have created a dataset in Google BigQuery and downloaded the json auth file. I am trying to access tables in this dataset from python in a Jupyter Notebook, but I am getting the error: </p>
  
  <p>"Forbidden: 403 PATCH <a href="https://bigquery.googleapis.com/bigquery/v2/projects/testdbt-bigquery-20200403/datasets/landing_zone_flights" rel="nofollow noreferrer">https://bigquery.googleapis.com/bigquery/v2/projects/testdbt-bigquery-20200403/datasets/landing_zone_flights</a>: Access Denied: Dataset testdbt-bigquery-20200403:landing_zone_flights: User does not have bigquery.datasets.update permission for dataset testdbt-bigquery-20200403:landing_zone_flights."</p>
  
  <p>Code:</p>
  
  <pre><code>%reload_ext google.cloud.bigquery
  
  import os
  from google.cloud import bigquery
  print(os.environ['GOOGLE_APPLICATION_CREDENTIALS']) 
  client = bigquery.Client.from_service_account_json('~/Code/BigQuery/Test_BQ.json')
  #get dataset and set permissions as Reader
  dataset = client.get_dataset("landing_zone_flights")
  entries = list(dataset.access_entries)
  full_dataset_id = "{}.{}".format(dataset.project, dataset.dataset_id)
  dataset.access_entries = entries
  
  dataset = client.update_dataset(dataset, ["access_entries"])  # Make an API request.
  
  print(
      "Updated dataset '{}' with modified user permissions.".format(full_dataset_id)
  )
  </code></pre>
  
  <p>The error is: </p>
  
  <blockquote>
    <p>Forbidden: 403 PATCH
    <a href="https://bigquery.googleapis.com/bigquery/v2/projects/testdbt-bigquery-20200403/datasets/landing_zone_flights" rel="nofollow noreferrer">https://bigquery.googleapis.com/bigquery/v2/projects/testdbt-bigquery-20200403/datasets/landing_zone_flights</a>:
    Access Denied: Dataset testdbt-bigquery-20200403:landing_zone_flights:
    User does not have bigquery.datasets.update permission for dataset
    testdbt-bigquery-20200403:landing_zone_flights
    .</p>
  </blockquote>
  
  <p>What am I doing wrong? I'm able to get and list the dataset properties but unable to update or query any tables</p>