code: def qt_at_least(needed_version, test_version=None):
      
      major, minor, patch = needed_version.split('.')
      needed_version = '0x0%s0%s0%s' % (major, minor, patch)
      needed_version = int(needed_version, 0)
  
      installed_version = Qt.QT_VERSION
      if test_version is not None:
          installed_version = test_version
  
      if needed_version <= installed_version:
          return True
      else:
          return False
docs: Check if the installed Qt version is greater than the requested
  
      :param needed_version: minimally needed Qt version in format like 4.8.4
      :type needed_version: str
  
      :param test_version: Qt version as returned from Qt.QT_VERSION. As in
       0x040100 This is used only for tests
      :type test_version: int
  
      :returns: True if the installed Qt version is greater than the requested
      :rtype: bool