text: import mmcv
  
  from mmseg.version import __version__, version_info
  
  MMCV_MIN = '1.1.4'
  MMCV_MAX = '1.3.0'
  
  
  def digit_version(version_str):
      digit_version = []
      for x in version_str.split('.'):
          if x.isdigit():
              digit_version.append(int(x))
          elif x.find('rc') != -1:
              patch_version = x.split('rc')
              digit_version.append(int(patch_version[0]) - 1)
              digit_version.append(int(patch_version[1]))
      return digit_version
  
  
  mmcv_min_version = digit_version(MMCV_MIN)
  mmcv_max_version = digit_version(MMCV_MAX)
  mmcv_version = digit_version(mmcv.__version__)
  
  
  assert (mmcv_min_version <= mmcv_version <= mmcv_max_version), \
      f'MMCV=={mmcv.__version__} is used but incompatible. ' \
      f'Please install mmcv>={mmcv_min_version}, <={mmcv_max_version}.'
  
  __all__ = ['__version__', 'version_info']