title: Databricks dbutils.fs.ls shows files. However, reading them throws an IO error
body: <p>I am running a Spark Cluster and when I'm executing the below command on Databricks Notebook, it gives me the output:</p>
  
  <pre><code>dbutils.fs.ls("/mnt/test_file.json")
  
  [FileInfo(path=u'dbfs:/mnt/test_file.json', name=u'test_file.json', size=1083L)]
  </code></pre>
  
  <p>However, when I'm trying to read that file, I'm getting the below mentioned error:</p>
  
  <pre><code>with open("mnt/test_file.json", 'r') as f:
    for line in f:
      print line
  
  IOError: [Errno 2] No such file or directory: 'mnt/test_file.json'
  </code></pre>
  
  <p>What might be the issue here? Any help/support is greatly appreciated.</p>