text: from __future__ import division, absolute_import, print_function
  
  import re
  
  import scipy
  from numpy.testing import assert_, run_module_suite
  
  
  def test_valid_scipy_version():
      # Verify that the scipy version is a valid one (no .post suffix or other
      # nonsense).  See numpy issue gh-6431 for an issue caused by an invalid
      # version.
      version_pattern = r"^[0-9]+\.[0-9]+\.[0-9]+(|a[0-9]|b[0-9]|rc[0-9])"
      dev_suffix = r"(\.dev0\+([0-9a-f]{7}|Unknown))"
      if scipy.version.release:
          res = re.match(version_pattern, scipy.__version__)
      else:
          res = re.match(version_pattern + dev_suffix, scipy.__version__)
  
      assert_(res is not None, scipy.__version__)
  
  
  if __name__ == "__main__":
      run_module_suite()
  