title: checking if there is a folder with a name that start with a specific string
body: <p>I'm writing a python script that is supposed to manage my running files. I want to make sure that the source and target folder exist before I run it and I can do this with <code>os.path.exists</code>. However, I have a set of foldernames <code>runner&lt;i&gt;</code>. Is there a way to check that there is some folders begining with that name?</p>
  
  <p>For example, if in the path
  <code>/path/to/runners</code>
  I have at least one folder named <code>runner</code>:</p>
  
  <blockquote>
    <p>/path/to/runners/ $ ls 
    file1.txt<br>
    file2.txt<br>
    folder1<br>
    folder2<br>
    runner1
    runner35<br>
    zfolder  </p>
  </blockquote>
  
  <p>Then the result is true. Remove runner1 <em>and</em> runner35 and it will be false.</p>