This command tells the current context to switch edit modes.It acts as a toggle.
Derived from mel command maya.cmds.ctxEditMode
Example:
import pymel.core as pm
# Create a poly cube
pm.polyCube(w=2, h=2, d=2, n='pCube1')
# Result: [nt.Transform(u'pCube1'), nt.PolyCube(u'polyCube1')] #
# Create a new rotate manip context, then switch to it.
pm.manipRotateContext('manipRotateContext1')
# Result: u'manipRotateContext1' #
pm.setToolTo('manipRotateContext1')
# Switch to edit mode to change pivots
pm.ctxEditMode()