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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def htmresearchCorePrereleaseInstalled():
 """ Make an attempt to determine if a pre-release version of htmresearch-core is installed already. @return: boolean """

  try:
    coreDistribution = pkg_resources.get_distribution("htmresearch-core")
    if pkg_resources.parse_version(coreDistribution.version).is_prerelease:
      # A pre-release dev version of htmresearch-core is installed.
      return True
  except pkg_resources.DistributionNotFound:
    pass  # Silently ignore.  The absence of htmresearch-core will be handled by
          # setuptools by default

  return False