This is a simple package wrapping py3dmol for a single command visualization of a RDKit molecule and its conformations (embed as Conformer objects in the Molecule)

pip install molconfviewer

from molconfviewer import MolConfViewer
mol_conf_viewer = MolConfViewer() 
mol_conf_viewer.view(mol=mol) # where mol is a rdkit mol

See the MolConfViewer object code to customize the visualization. For more possibilities, please check py3dmol and 3dmol.js.