title: pyside2 installation problem on ubuntu18.04, python 3.8.3 on anaconda
body: <p>After installing anaconda3, I began to install pyside2.</p>
  <p>I directly typed <code>pip install pyside2</code>, and successfully installed pyside2 5.15. But when I ran the toy example, an error occurred:</p>
  <pre><code>Traceback (most recent call last):
    File &quot;test.py&quot;, line 2, in &lt;module&gt;
      from PySide2.QtWidgets import QApplication, QLabel
  ImportError: /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2: symbol krb5_ser_context_init version krb5_3_MIT not defined in file libkrb5.so.3 with link time reference
  </code></pre>
  <p>I when to <code>/usr/lib/x86_64-linux-gnu</code> and found both <code>libgssapi_krb5.so.2</code> and <code>libkrb5.so.3</code>, and I have no idea how to fix this bug. Can anybody help me?</p>
  <p>My environment:</p>
  <p>python: 3.8.3</p>
  <p>OS: ubuntu 18.04</p>
  <p>CPU: AMD ryzen 3600</p>