toPython -- convert Macaulay2 things to Python objects

i1 : toPython 2

o1 = 2

o1 : PythonObject of class int

i2 : toPython (1/2)

o2 = 0.5

o2 : PythonObject of class float

i3 : toPython pi

o3 = 3.141592653589793

o3 : PythonObject of class float

i4 : toPython ii

o4 = 1j

o4 : PythonObject of class complex

i5 : toPython "foo"

o5 = foo

o5 : PythonObject of class str

i6 : toPython {1, 2, 3, 4}

o6 = [1, 2, 3, 4]

o6 : PythonObject of class list

i7 : toPython (1, 2, 3, 4)

o7 = (1, 2, 3, 4)

o7 : PythonObject of class tuple

i8 : toPython hashTable {"foo" => "bar"}

o8 = {'foo': 'bar'}

o8 : PythonObject of class dict

i9 : toPython set {1, 2, 3, 4}

o9 = {1, 2, 3, 4}

o9 : PythonObject of class set

i10 : toPython true

o10 = True

o10 : PythonObject of class bool

i11 : toPython null

o11 = None

o11 : PythonObject of class NoneType

i12 : m2sqrt = x -> (
          print "calling Macaulay2 code from Python!";
          sqrt x)

o12 = m2sqrt

o12 : FunctionClosure

i13 : pysqrt = toPython m2sqrt

o13 = <built-in method m2sqrt of PyCapsule object at 0x7f9ae50342a0>

o13 : PythonObject of class builtin_function_or_method

i14 : pysqrt 2
calling Macaulay2 code from Python!

o14 = 1.4142135623730951

o14 : PythonObject of class float