old_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  import os
  import subprocess
  import locale
  import const as c
  
  
  def java_version():
      """Call java and return version information.
  
      :return unicode: Java version string
      """
      result = subprocess.check_output(
          [c.JAVA, '-version'], stderr=subprocess.STDOUT
      )
      first_line = result.splitlines()[0]
      return first_line.decode()
  
  
  def epubcheck_help():
      """Return epubcheck.jar commandline help text.
  
      :return unicode: helptext from epubcheck.jar
      """
  
      tc = locale.getdefaultlocale()[1]
  
      with open(os.devnull, "w") as devnull:
          p = subprocess.Popen(
              [c.JAVA, '-jar', c.EPUBCHECK, '-h'],
              stdout=subprocess.PIPE,
              stderr=devnull,
          )
          result = p.communicate()[0]
  
      return result.decode(tc)
  
  
  def epubcheck_version():
      """Call epubcheck -h and return helptext.
  
      :return unicode: Epubcheck verstion string
      """
      return epubcheck_help().splitlines()[0]
  
  
  if __name__ == "__main__":
      print(epubcheck_help())
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  import os
  import subprocess
  import locale
  from epubcheck import const as c
  
  
  def java_version():
      """Call java and return version information.
  
      :return unicode: Java version string
      """
      result = subprocess.check_output(
          [c.JAVA, '-version'], stderr=subprocess.STDOUT
      )
      first_line = result.splitlines()[0]
      return first_line.decode()
  
  
  def epubcheck_help():
      """Return epubcheck.jar commandline help text.
  
      :return unicode: helptext from epubcheck.jar
      """
  
      tc = locale.getdefaultlocale()[1]
  
      with open(os.devnull, "w") as devnull:
          p = subprocess.Popen(
              [c.JAVA, '-jar', c.EPUBCHECK, '-h'],
              stdout=subprocess.PIPE,
              stderr=devnull,
          )
          result = p.communicate()[0]
  
      return result.decode(tc)
  
  
  def epubcheck_version():
      """Call epubcheck -h and return helptext.
  
      :return unicode: Epubcheck verstion string
      """
      return epubcheck_help().splitlines()[0]
  
  
  if __name__ == "__main__":
      print(epubcheck_help())
  
subject: fix ImportError: No module named 'const' 2