title: RuntimeError: TSVNotSupported: TSV output not supported. Tesseract >= 3.05 required (Google Dataflow)
body: <p>Currently want to distribute text detection on Google Dataflow on a huge dataset.
  I'm using the python package of tesseract which gets installed without a problem.
  The problem occurs when installing the tesseract-ocr package.
  It seems like it's installing an older version of tesseract-ocr.</p>
  
  <p>I've already tried adding a version number to the package or installing through a tar.gz file.
  Also tried using ppa-alex-p package manager.</p>
  
  <p>ppa:alex-p:</p>
  
  <pre><code>CUSTOM_COMMANDS = [
      ['add-apt-repository', 'ppa:alex-p/tesseract-ocr'],
      ['apt-get', 'update'],
      ['apt-get', '--assume-yes', 'install', 'tesseract-ocr'],
  
      ['pip', 'install', 'pytesseract'],
      ['pip', 'install', 'opencv-python'],
      ['pip', 'install', 'pytesseract'],
      ['pip', 'install', 'tensorflow']
  ]
  </code></pre>
  
  <p>Version number:</p>
  
  <pre><code>CUSTOM_COMMANDS = [
      ['apt-get', 'update'],
      ['apt-get', '--assume-yes', 'install', 'tesseract-ocr=3.05.00'],
  
      ['pip', 'install', 'pytesseract'],
      ['pip', 'install', 'opencv-python'],
      ['pip', 'install', 'pytesseract'],
      ['pip', 'install', 'tensorflow']
  ]
  </code></pre>
  
  <p>Installing through a file:</p>
  
  <pre><code>dataflow_options = {
          'runner': 'DataflowRunner',
          'job_name':  job_name,
          'staging_location': STAGING_LOCATION,
          'temp_location': TEMP_LOCATION,
          'project': PROJECT_ID,
          'service_account_email': SERVICE_ACCOUNT,
          'region': 'europe-west1',
          'zone': 'europe-west1-d',
          'machine_type': 'n1-standard-8',
          'autoscaling_algorithm': 'THROUGHPUT_BASED',
          'save_main_session': True,
          'setup_file': './setup.py',
          'extra_package': './tesseract-4.0.0.tar.gz',
      }
  </code></pre>
  
  <p>The CUSTOM_COMMANDS are executed with the following code on this link.
  <a href="https://gist.github.com/inchoate/bd0ff7f609f57c85d9de8ff9d5586e30" rel="nofollow noreferrer">https://gist.github.com/inchoate/bd0ff7f609f57c85d9de8ff9d5586e30</a></p>
  
  <p>Hope to see an installed package with the latest version on Google Dataflow.</p>