An example of a working nested list comprehension

20190411_maya_nested_list_comprehensions_learn.py

from pymel.core import *

# an example of a working nested list comprehension
# this example is 2 levels deep

  '''
  -- Explanation --
  
  for each selected object, list all the connections of type 'animCurve'
  for each of the connected animCurve nodes, shortlist those with 'rotateX' in their names
  put those shortlisted nodes in a list
  select those shortlisted nodes
  '''

  select([x for y in ls(sl=True) for x in listConnections(y, type='animCurve') if 'rotateX' in x.name()])