title: aws cli has no output
body: <p>I've been using aws cli on this laptop for a while to interact with s3 buckets. Suddenly, the tool has stopping printing any output whatsoever:</p>
  
  <pre><code>C:\&gt;aws
  
  C:\&gt;aws --debug
  
  C:\&gt;aws --help
  
  C:\&gt;where aws
  C:\Users\Andrew\AppData\Roaming\Python\Python37\Scripts\aws
  C:\Users\Andrew\AppData\Roaming\Python\Python37\Scripts\aws.cmd
  </code></pre>
  
  <p>This is in an administrator command prompt, but it's the same in an admin powershell prompt. Windows version 10.0.18362 Build 18362 - I took the anniversary update a few weeks ago but am not sure if it's correlated or not.</p>
  
  <p>aws cli on my other (Win 10, anniversary update) machine, using the same authentication, works fine.</p>
  
  <p>I've tried straight-up uninstalling and reinstalling aws cli, but after the reinstall I can't even get it to print anything to authenticate me. </p>
  
  <p>Any ideas? Any more information I can give you? </p>