code: def get_tesseract_version():
      
      config = {'libraries': ['tesseract', 'lept']}
      try:
          p = subprocess.Popen(['tesseract', '-v'], stderr=subprocess.PIPE, stdout=subprocess.PIPE)
          stdout_version, version = p.communicate()
          version = _read_string(version).strip()
          if version == '':
              version = _read_string(stdout_version).strip()
          version_match = re.search(r'^tesseract ((?:\d+\.)+\d+).*', version, re.M)
          if version_match:
              version = version_match.group(1)
          else:
              _LOGGER.warn('Failed to extract tesseract version number from: {}'.format(version))
              version = _TESSERACT_MIN_VERSION
      except OSError as e:
          _LOGGER.warn('Failed to extract tesseract version from executable: {}'.format(e))
          version = _TESSERACT_MIN_VERSION
      _LOGGER.info("Supporting tesseract v{}".format(version))
      version = version_to_int(version)
      config['cython_compile_time_env'] = {'TESSERACT_VERSION': version}
      _LOGGER.info("Building with configs: {}".format(config))
      return config
docs: Try to extract version from tesseract otherwise default min version.