delete(Thing,PythonObject) -- delete elements from mutable python sequences

i1 : x = toPython {3, 5, 7, 9}

o1 = [3, 5, 7, 9]

o1 : PythonObject of class list

i2 : delete(0, x)

i3 : x

o3 = [5, 7, 9]

o3 : PythonObject of class list

i4 : x = toPython hashTable {"spam" => 1, "eggs" => 2}

o4 = {'spam': 1, 'eggs': 2}

o4 : PythonObject of class dict

i5 : delete("eggs", x)

i6 : x

o6 = {'spam': 1}

o6 : PythonObject of class dict