title: After already being set in Pycharm terminal, I still get: Please set GOOGLE_APPLICATION_CREDENTIALS
body: <p>I'm trying to create a bq client python.</p>
  <p>I have created the GCP json key and exported it to<code>GOOGLE_APPLICATION_CREDENTIALS</code>.</p>
  <p>I have tried to run the following in the PyCharm IDE:</p>
  <blockquote>
  <blockquote>
  <p>export GOOGLE_APPLICATION_CREDENTIALS=&quot;/home/.....7e7a385.json&quot;
  echo $GOOGLE_APPLICATION_CREDENTIALS
  /home/...7e7a385.json
  GOOGLE_APPLICATION_CREDENTIALS=&quot;/home/....7e7a385.json&quot;</p>
  </blockquote>
  </blockquote>
  <p>(following this post <a href="https://stackoverflow.com/a/67224391/311130">https://stackoverflow.com/a/67224391/311130</a>)</p>
  <p>I still get this error afterwards:</p>
  <pre><code>google.auth.exceptions.DefaultCredentialsError: Could not automatically determine credentials. Please set GOOGLE_APPLICATION_CREDENTIALS or explicitly create credentials and re-run the application. For more information, please see https://cloud.google.com/docs/authentication/getting-started
  </code></pre>