text: import sys 
  print(f"Current PYTHONPATH via sys: {sys.path}")
  
  def test_can_import_landmark():
  	from tallem.extensions import landmark
  	assert landmark is not None
  	assert landmark.__name__ == 'tallem.extensions.landmark'
  	assert 'maxmin' in dir(landmark)
  
  def test_can_import_fast_svd():
  	from tallem.extensions import fast_svd
  	assert fast_svd is not None
  	assert fast_svd.__name__ == 'tallem.extensions.fast_svd'
  	assert 'StiefelLoss' in dir(fast_svd)
  
  def test_can_import_mds_cython():
  	from tallem.extensions import mds_cython
  	assert mds_cython is not None
  	assert mds_cython.__name__ == 'tallem.extensions.mds_cython'
  	assert 'cython_dsyevr' in dir(mds_cython)
  	
  def test_can_import_tallem():
  	import tallem
  	assert tallem is not None
  	assert tallem.__name__ == 'tallem'
  	assert 'TALLEM' in dir(tallem)