PythonObject _ Thing -- get elements of python sequences

• Operator: _

• Usage:

  x_y

• Inputs:
  • x, a python object,
  • y, a thing,
• Outputs:
  • a python object,

i1 : x = toPython {1, 2, 3, 4}

o1 = [1, 2, 3, 4]

o1 : PythonObject of class list

i2 : x_1

o2 = 2

o2 : PythonObject of class int

i3 : x = toPython hashTable {"spam" => 1, "eggs" => 2}

o3 = {'spam': 1, 'eggs': 2}

o3 : PythonObject of class dict

i4 : x_"eggs"

o4 = 2

o4 : PythonObject of class int