scipy.cluster
scipy.cluster.vq
scipy.cluster.hierarchy
scipy.constants
scipy.fft
scipy.fftpack
scipy.integrate
scipy.interpolate
scipy.io
scipy.linalg
scipy.linalg.blas
scipy.linalg.lapack
scipy.linalg.interpolative
scipy.misc
scipy.ndimage
scipy.odr
scipy.optimize
scipy.signal
scipy.sparse
scipy.sparse.linalg
scipy.sparse.csgraph
scipy.spatial
scipy.spatial.distance
scipy.special
scipy.stats
scipy.stats.mstats
scipy.stats.qmc
Return a reference to the right child tree object.
The left child of the target node. If the node is a leaf, None is returned.