---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-15-211ad3eba4b2> in <module>()
      6 qc.measure(0,0)
      7 
----> 8 qc.draw(output='mpl')

3 frames
/usr/local/lib/python3.6/dist-packages/qiskit/visualization/matplotlib.py in __init__(self, qregs, cregs, ops, scale, style, plot_barriers, reverse_bits, layout, fold, ax, initial_state, cregbundle, global_phase)
    123 
    124         if not HAS_PYLATEX:
--> 125             raise ImportError('The class MatplotlibDrawer needs pylatexenc. '
    126                               'to install, run "pip install pylatexenc".')
    127 

ImportError: The class MatplotlibDrawer needs pylatexenc. to install, run "pip install pylatexenc".