Package horizons :: Package ext :: Module typing :: Class _ForwardRef
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Type _ForwardRef

object --+        
         |        
      type --+    
             |    
    TypingMeta --+
                 |
                _ForwardRef

Wrapper to hold a forward reference.

Instance Methods [hide private]
bool
__instancecheck__(self, obj)
check if an object is an instance
 
__repr__(self)
repr(x)
bool
__subclasscheck__(self, cls)
check if a class is a subclass
 
_eval_type(self, globalns, localns)
Override this in subclasses to interpret forward references.
    Inherited from TypingMeta
the object's type
__init__(self, *args, **kwds)
x.__init__(...) initializes x; see help(type(x)) for signature
 
_get_type_vars(self, tvars)
    Inherited from type
 
__call__(x, ...)
x(...)
 
__delattr__(...)
x.__delattr__('name') <==> del x.name
 
__eq__(x, y)
x==y
 
__ge__(x, y)
x>=y
 
__getattribute__(...)
x.__getattribute__('name') <==> x.name
 
__gt__(x, y)
x>y
 
__hash__(x)
hash(x)
 
__le__(x, y)
x<=y
 
__lt__(x, y)
x<y
 
__ne__(x, y)
x!=y
 
__setattr__(...)
x.__setattr__('name', value) <==> x.name = value
list of immediate subclasses
__subclasses__()
list
mro()
return a type's method resolution order
    Inherited from object
 
__format__(...)
default object formatter
 
__reduce__(...)
helper for pickle
 
__reduce_ex__(...)
helper for pickle
int
__sizeof__()
size of object in memory, in bytes
 
__str__(x)
str(x)
 
__subclasshook__(...)
Abstract classes can override this to customize issubclass().
Class Methods [hide private]
    Inherited from TypingMeta
 
assert_no_subclassing(cls, bases)
Static Methods [hide private]
a new object with type S, a subtype of T
__new__(cls, arg)
Class Variables [hide private]
    Inherited from TypingMeta
  _is_protocol = False
Properties [hide private]
    Inherited from type
  __abstractmethods__
  __base__
  __bases__
  __basicsize__
  __dictoffset__
  __flags__
  __itemsize__
  __mro__
  __name__
  __weakrefoffset__
    Inherited from object
  __class__
the object's class
Method Details [hide private]

__instancecheck__(self, obj)

 

check if an object is an instance

Returns: bool
Overrides: type.__instancecheck__
(inherited documentation)

__new__(cls, arg)
Static Method

 
Returns: a new object with type S, a subtype of T
Overrides: object.__new__
(inherited documentation)

__repr__(self)
(Representation operator)

 

repr(x)

Overrides: object.__repr__
(inherited documentation)

__subclasscheck__(self, cls)

 

check if a class is a subclass

Returns: bool
Overrides: type.__subclasscheck__
(inherited documentation)

_eval_type(self, globalns, localns)

 

Override this in subclasses to interpret forward references.

For example, Union['C'] is internally stored as Union[_ForwardRef('C')], which should evaluate to _Union[C], where C is an object found in globalns or localns (searching localns first, of course).

Overrides: TypingMeta._eval_type
(inherited documentation)