How to use the dill.source.getname function in dill

def run_source(obj):
    _obj = source._wrap(obj)
    assert _obj(1.57) == obj(1.57)
    src = source.importable(obj, alias='_f')
    # LEEK: for 3.x, locals may not be modified
    # (see https://docs.python.org/3.6/library/functions.html#locals)
    #
    my_locals = locals()
    exec(src, globals(), my_locals)
    assert my_locals["_f"](1.57) == obj(1.57)
    name = source.getname(obj)
    assert name == obj.__name__ or src.split("=",1)[0].strip()

def run_source(obj):
    _obj = source._wrap(obj)
    assert _obj(1.57) == obj(1.57)
    src = source.getimportable(obj, alias='_f')
    exec(src, globals())
    assert _f(1.57) == obj(1.57)
    name = source.getname(obj)
    assert name == obj.__name__ or src.split("=",1)[0].strip()

def test_getsource():
  assert getsource(f) == 'f = lambda x: x**2\n'
  assert getsource(g) == 'def g(x): return f(x) - x\n'
  assert getsource(h) == 'def h(x):\n  def g(x): return x\n  return g(x) - x\n'
  assert getname(f) == 'f'
  assert getname(g) == 'g'
  assert getname(h) == 'h'
  assert _wrap(f)(4) == 16
  assert _wrap(g)(4) == 12
  assert _wrap(h)(4) == 0

  assert getname(Foo) == 'Foo'
  assert getname(Bar) == 'Bar'
  assert getsource(Bar) == 'class Bar:\n  pass\n'
  assert getsource(Foo) == 'class Foo(object):\n  def bar(self, x):\n    return x*x+x\n'
  #XXX: add getsource for  _foo, _bar

def test_getsource():
  assert getsource(f) == 'f = lambda x: x**2\n'
  assert getsource(g) == 'def g(x): return f(x) - x\n'
  assert getsource(h) == 'def h(x):\n  def g(x): return x\n  return g(x) - x\n'
  assert getname(f) == 'f'
  assert getname(g) == 'g'
  assert getname(h) == 'h'
  assert _wrap(f)(4) == 16
  assert _wrap(g)(4) == 12
  assert _wrap(h)(4) == 0

  assert getname(Foo) == 'Foo'
  assert getname(Bar) == 'Bar'
  assert getsource(Bar) == 'class Bar:\n  pass\n'
  assert getsource(Foo) == 'class Foo(object):\n  def bar(self, x):\n    return x*x+x\n'
  #XXX: add getsource for  _foo, _bar

def test_getsource():
  assert getsource(f) == 'f = lambda x: x**2\n'
  assert getsource(g) == 'def g(x): return f(x) - x\n'
  assert getsource(h) == 'def h(x):\n  def g(x): return x\n  return g(x) - x\n'
  assert getname(f) == 'f'
  assert getname(g) == 'g'
  assert getname(h) == 'h'
  assert _wrap(f)(4) == 16
  assert _wrap(g)(4) == 12
  assert _wrap(h)(4) == 0

  assert getname(Foo) == 'Foo'
  assert getname(Bar) == 'Bar'
  assert getsource(Bar) == 'class Bar:\n  pass\n'
  assert getsource(Foo) == 'class Foo(object):\n  def bar(self, x):\n    return x*x+x\n'
  #XXX: add getsource for  _foo, _bar

def test_getsource():
  assert getsource(f) == 'f = lambda x: x**2\n'
  assert getsource(g) == 'def g(x): return f(x) - x\n'
  assert getsource(h) == 'def h(x):\n  def g(x): return x\n  return g(x) - x\n'
  assert getname(f) == 'f'
  assert getname(g) == 'g'
  assert getname(h) == 'h'
  assert _wrap(f)(4) == 16
  assert _wrap(g)(4) == 12
  assert _wrap(h)(4) == 0

  assert getname(Foo) == 'Foo'
  assert getname(Bar) == 'Bar'
  assert getsource(Bar) == 'class Bar:\n  pass\n'
  assert getsource(Foo) == 'class Foo(object):\n  def bar(self, x):\n    return x*x+x\n'
  #XXX: add getsource for  _foo, _bar

>>> f = lambda x:x**2
    >>> pyfile = dill.temp.dumpIO_source(f, alias='_f')
    >>> _f = dill.temp.loadIO_source(pyfile)
    >>> _f(4)
    16

Optional kwds:
    If 'alias' is specified, the object will be renamed to the given string.
    """
    from .source import importable, getname
    if PY3:
        from io import BytesIO as StringIO
    else:
        from StringIO import StringIO
    alias = kwds.pop('alias', '') #XXX: include an alias so a name is known
    name = str(alias) or getname(object)
    name = "\n#NAME: %s\n" % name
    #XXX: assumes kwds['dir'] is writable and on $PYTHONPATH
    file = StringIO()
    file.write(b(''.join([importable(object, alias=alias),name])))
    file.flush()
    return file

def getmodule(object, _filename=None, force=False):
    """get the module of the object"""
    from inspect import getmodule as getmod
    module = getmod(object, _filename)
    if module or not force: return module
    if PY3: builtins = 'builtins'
    else: builtins = '__builtin__'
    builtins = __import__(builtins)
    from .source import getname
    name = getname(object, force=True)
    return builtins if name in vars(builtins).keys() else None