I used the following for:

>>CodeType
>>FunctionType
>>LambdaType
>>SimpleNamespace
>>MethodType

--------------------

>>> print(CodeType.__doc__)
code(argcount, kwonlyargcount, nlocals, stacksize, flags, codestring,
      constants, names, varnames, filename, name, firstlineno,
      lnotab[, freevars[, cellvars]])

Create a code object.  Not for the faint of heart.

>>> print(FunctionType.__doc__)
function(code, globals[, name[, argdefs[, closure]]])

Create a function object from a code object and a dictionary.
The optional name string overrides the name from the code object.
The optional argdefs tuple specifies the default argument values.
The optional closure tuple supplies the bindings for free variables.

>>> print(LambdaType.__doc__)
function(code, globals[, name[, argdefs[, closure]]])

Create a function object from a code object and a dictionary.
The optional name string overrides the name from the code object.
The optional argdefs tuple specifies the default argument values.
The optional closure tuple supplies the bindings for free variables.

>>> print(SimpleNamespace.__doc__) 
A simple attribute-based namespace.

namespace(**kwargs)

>>> print(MethodType.__doc__)
method(function, instance)

Create a bound instance method object.

--------------------

I left out the [] arguments.

I've stopped here and uploaded a patch for the 

>>'first easy part'. 

Despite that name I suspect I will have to change quite a few things. Once this part is done then I will move on the the 

>>'second easy part'