Edit File: typing_extensions.cpython-37.pyc
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Example:: from typing import NoReturn def stop() -> NoReturn: raise Exception('no way') This type is invalid in other positions, e.g., ``List[NoReturn]`` will fail in static type checkers. r N)r r r rR r r r r r rK � s )� metaclassrS �T�KT�VT�T_co)� covariant�V_co�VT_co�T_contra)Z contravariantc sN e Zd ZdZdZddd�Zdd� Zdd � Z� fd d �Zd d � Z dd� Z � Z S )� _ClassVara[ Special type construct to mark class variables. An annotation wrapped in ClassVar indicates that a given attribute is intended to be used as a class variable and should not be set on instances of that class. Usage:: class Starship: stats: ClassVar[Dict[str, int]] = {} # class variable damage: int = 10 # instance variable ClassVar accepts only types and cannot be further subscribed. Note that ClassVar is not a class itself, and should not be used with isinstance() or issubclass(). )�__type__Nc K s || _ d S )N)re )rN �tp�kwdsr r r �__init__� s z_ClassVar.__init__c C sR t | �}| jd kr6|t�|d�|jdd � ��dd�S td�|jdd � ���d S )Nz {} accepts only single type.� T)rS z {} cannot be further subscripted)�typere �typingr �formatr r )rN �itemr r r r � __getitem__ s z_ClassVar.__getitem__c C s. t �| j||�}|| jkr | S t| �|dd�S )NT)rS )rk � _eval_typere rj )rN �globalns�localns�new_tpr r r ro s z_ClassVar._eval_typec s. t � �� }| jd k r*|d�t�| j��7 }|S )Nz[{}])rU �__repr__re rl rk � _type_repr)rN �r)rY r r rs s z_ClassVar.__repr__c C s t t| �j| jf�S )N)�hashrj r re )rN r r r �__hash__ s z_ClassVar.__hash__c C s, t |t�stS | jd k r$| j|jkS | |kS )N)� isinstancerd r, re )rN �otherr r r �__eq__ s z_ClassVar.__eq__)N) r r r rR r rh rn ro rs rw rz rZ r r )rY r rd � s rd c s^ e Zd ZdZd� fdd� Zdd� Zdd � Zd d � Zd d � Z� fdd�Z dd� Z dd� Z � Z S )� _ClassVarMetazMetaclass for ClassVarNFc s( t � j| ||||d�}|d k r$||_|S )N)rS )rU r$ re )r rV rW rX rf rS rN )rY r r r$ % s z_ClassVarMeta.__new__c C s t d��d S )Nz*ClassVar cannot be used with isinstance().)r )rN rO r r r rP + s z _ClassVarMeta.__instancecheck__c C s t d��d S )Nz*ClassVar cannot be used with issubclass().)r )rN r r r r rQ . s z _ClassVarMeta.__subclasscheck__c C sb t | �}| jd k r*td�|jdd � ���t�|d�|jdd � ��}|| j| jt| j �|dd�S )Nz {} cannot be further subscriptedri z {} accepts only single type.T)rf rS ) rj re r rl r rk r � __bases__r r+ )rN rm r �paramr r r rn 1 s z_ClassVarMeta.__getitem__c C s@ t �| j||�}|| jkr | S t| �| j| jt| j�| jdd�S )NT)rf rS )rk ro re rj r r| r r+ )rN rp rq rr r r r ro = s z_ClassVarMeta._eval_typec s. t � �� }| jd k r*|d�t�| j��7 }|S )Nz[{}])rU rs re rl rk rt )rN ru )rY r r rs E s z_ClassVarMeta.__repr__c C s t t| �j| jf�S )N)rv rj r re )rN r r r rw K s z_ClassVarMeta.__hash__c C s, t |t�stS | jd k r$| j|jkS | |kS )N)rx r3 r, re )rN ry r r r rz N s z_ClassVarMeta.__eq__)NF) r r r rR r$ rP rQ rn ro rs rw rz rZ r r )rY r r{ " s r{ c @ s e Zd ZdZdZdS )r3 a[ Special type construct to mark class variables. An annotation wrapped in ClassVar indicates that a given attribute is intended to be used as a class variable and should not be set on instances of that class. Usage:: class Starship: stats: ClassVar[Dict[str, int]] = {} # class variable damage: int = 10 # instance variable ClassVar accepts only types and cannot be further subscribed. Note that ClassVar is not a class itself, and should not be used with isinstance() or issubclass(). N)r r r rR re r r r r r3 U s )r r c @ s e Zd Zdd� Zdd� ZdS )� _FinalFormc C s d| j S )Nztyping_extensions.)�_name)rN r r r rs n s z_FinalForm.__repr__c C s t �|d�| j��}t| |f�S )Nz{} accepts only single type)rk r rl r � _GenericAlias)rN r! rm r r r rn q s z_FinalForm.__getitem__N)r r r rs rn r r r r r~ l s r~ aW A special typing construct to indicate that a name cannot be re-assigned or overridden in a subclass. For example: MAX_SIZE: Final = 9000 MAX_SIZE += 1 # Error reported by type checker class Connection: TIMEOUT: Final[int] = 10 class FastConnector(Connection): TIMEOUT = 1 # Error reported by type checker There is no runtime checking of these properties.)�docc sN e Zd ZdZdZddd�Zdd� Zdd � Z� fd d �Zd d � Z dd� Z � Z S )�_Finala� A special typing construct to indicate that a name cannot be re-assigned or overridden in a subclass. For example: MAX_SIZE: Final = 9000 MAX_SIZE += 1 # Error reported by type checker class Connection: TIMEOUT: Final[int] = 10 class FastConnector(Connection): TIMEOUT = 1 # Error reported by type checker There is no runtime checking of these properties. )re Nc K s || _ d S )N)re )rN rf rg r r r rh � s z_Final.__init__c C sR t | �}| jd kr6|t�|d�|jdd � ��dd�S td�|jdd � ���d S )Nz {} accepts only single type.ri T)rS z {} cannot be further subscripted)rj re rk r rl r r )rN rm r r r r rn � s z_Final.__getitem__c C s. t �| j||�}|| jkr | S t| �|dd�S )NT)rS )rk ro re rj )rN rp rq rr r r r ro � s z_Final._eval_typec s. t � �� }| jd k r*|d�t�| j��7 }|S )Nz[{}])rU rs re rl rk rt )rN ru )rY r r rs � s z_Final.__repr__c C s t t| �j| jf�S )N)rv rj r re )rN r r r rw � s z_Final.__hash__c C s, t |t�stS | jd k r$| j|jkS | |kS )N)rx r� r, re )rN ry r r r rz � s z _Final.__eq__)N) r r r rR r rh rn ro rs rw rz rZ r r )rY r r� � s r� c s^ e Zd ZdZd� fdd� Zdd� Zdd � Zd d � Zd d � Z� fdd�Z dd� Z dd� Z � Z S )� _FinalMetazMetaclass for FinalNFc s( t � j| ||||d�}|d k r$||_|S )N)rS )rU r$ re )r rV rW rX rf rS rN )rY r r r$ � s z_FinalMeta.__new__c C s t d��d S )Nz'Final cannot be used with isinstance().)r )rN rO r r r rP � s z _FinalMeta.__instancecheck__c C s t d��d S )Nz'Final cannot be used with issubclass().)r )rN r r r r rQ � s z _FinalMeta.__subclasscheck__c C sb t | �}| jd k r*td�|jdd � ���t�|d�|jdd � ��}|| j| jt| j �|dd�S )Nz {} cannot be further subscriptedri z {} accepts only single type.T)rf rS ) rj re r rl r rk r r| r r+ )rN rm r r} r r r rn � s z_FinalMeta.__getitem__c C s@ t �| j||�}|| jkr | S t| �| j| jt| j�| jdd�S )NT)rf rS )rk ro re rj r r| r r+ )rN rp rq rr r r r ro � s z_FinalMeta._eval_typec s. t � �� }| jd k r*|d�t�| j��7 }|S )Nz[{}])rU rs re rl rk rt )rN ru )rY r r rs � s z_FinalMeta.__repr__c C s t t| �j| jf�S )N)rv rj r re )rN r r r rw � s z_FinalMeta.__hash__c C s, t |t�stS | jd k r$| j|jkS | |kS )N)rx r4 r, re )rN ry r r r rz � s z_FinalMeta.__eq__)NF) r r r rR r$ rP rQ rn ro rs rw rz rZ r r )rY r r� � s r� c @ s e Zd ZdZdZdS )r4 a� A special typing construct to indicate that a name cannot be re-assigned or overridden in a subclass. For example: MAX_SIZE: Final = 9000 MAX_SIZE += 1 # Error reported by type checker class Connection: TIMEOUT: Final[int] = 10 class FastConnector(Connection): TIMEOUT = 1 # Error reported by type checker There is no runtime checking of these properties. N)r r r rR re r r r r r4 � s c C s | S )au This decorator can be used to indicate to type checkers that the decorated method cannot be overridden, and decorated class cannot be subclassed. For example: class Base: @final def done(self) -> None: ... class Sub(Base): def done(self) -> None: # Error reported by type checker ... @final class Leaf: ... class Other(Leaf): # Error reported by type checker ... There is no runtime checking of these properties. r )�fr r r r< s c C s t | �S )N)r )rV r r r r= s c @ s e Zd Zdd� Zdd� ZdS )� _LiteralFormc C s d| j S )Nztyping_extensions.)r )rN r r r rs $ s z_LiteralForm.__repr__c C s t | |�S )N)r� )rN r! r r r rn ' s z_LiteralForm.__getitem__N)r r r rs rn r r r r r� " s r� ao A type that can be used to indicate to type checkers that the corresponding value has a value literally equivalent to the provided parameter. For example: var: Literal[4] = 4 The type checker understands that 'var' is literally equal to the value 4 and no other value. Literal[...] cannot be subclassed. There is no runtime checking verifying that the parameter is actually a value instead of a type.c sN e Zd ZdZdZddd�Zdd� Zdd � Z� fd d �Zd d � Z dd� Z � Z S )�_Literala� A type that can be used to indicate to type checkers that the corresponding value has a value literally equivalent to the provided parameter. For example: var: Literal[4] = 4 The type checker understands that 'var' is literally equal to the value 4 and no other value. Literal[...] cannot be subclassed. There is no runtime checking verifying that the parameter is actually a value instead of a type. )� __values__Nc K s || _ d S )N)r� )rN �valuesrg r r r rh H s z_Literal.__init__c C sJ t | �}| jd kr.t|t�s"|f}||dd�S td�|jdd � ���d S )NT)rS z {} cannot be further subscriptedri )rj r� rx �tupler rl r )rN r� r r r r rn K s z_Literal.__getitem__c C s | S )Nr )rN rp rq r r r ro T s z_Literal._eval_typec s6 t � �� }| jd k r2|d�d�ttj| j���7 }|S )Nz[{}]z, )rU rs r� rl �join�maprk rt )rN ru )rY r r rs W s z_Literal.__repr__c C s t t| �j| jf�S )N)rv rj r r� )rN r r r rw ] s z_Literal.__hash__c C s, t |t�stS | jd k r$| j|jkS | |kS )N)rx r� r, r� )rN ry r r r rz ` s z_Literal.__eq__)N) r r r rR r rh rn ro rs rw rz rZ r r )rY r r� 8 s r� c s^ e Zd ZdZd� fdd� Zdd� Zdd � Zd d � Zd d � Z� fdd�Z dd� Z dd� Z � Z S )� _LiteralMetazMetaclass for LiteralNFc s( t � j| ||||d�}|d k r$||_|S )N)rS )rU r$ r� )r rV rW rX r� rS rN )rY r r r$ l s z_LiteralMeta.__new__c C s t d��d S )Nz)Literal cannot be used with isinstance().)r )rN rO r r r rP r s z _LiteralMeta.__instancecheck__c C s t d��d S )Nz)Literal cannot be used with issubclass().)r )rN r r r r rQ u s z _LiteralMeta.__subclasscheck__c C sV t | �}| jd k r*td�|jdd � ���t|t�s:|f}|| j| jt| j �|dd�S )Nz {} cannot be further subscriptedri T)r� rS ) rj r� r rl r rx r� r| r r+ )rN rm r r r r rn x s z_LiteralMeta.__getitem__c C s | S )Nr )rN rp rq r r r ro � s z_LiteralMeta._eval_typec s6 t � �� }| jd k r2|d�d�ttj| j���7 }|S )Nz[{}]z, )rU rs r� rl r� r� rk rt )rN ru )rY r r rs � s z_LiteralMeta.__repr__c C s t t| �j| jf�S )N)rv rj r r� )rN r r r rw � s z_LiteralMeta.__hash__c C s, t |t�stS | jd k r$| j|jkS | |kS )N)rx r> r, r� )rN ry r r r rz � s z_LiteralMeta.__eq__)NF) r r r rR r$ rP rQ rn ro rs rw rz rZ r r )rY r r� i s r� c @ s e Zd ZdZdZdS )r> a� A type that can be used to indicate to type checkers that the corresponding value has a value literally equivalent to the provided parameter. For example: var: Literal[4] = 4 The type checker understands that 'var' is literally equal to the value 4 and no other value. Literal[...] cannot be subclassed. There is no runtime checking verifying that the parameter is actually a value instead of a type. N)r r r rR r� r r r r r> � s c O s t d��dS )z*Helper for @overload to raise when called.z�You should not call an overloaded function. A series of @overload-decorated functions outside a stub module should always be followed by an implementation that is not @overload-ed.N)�NotImplementedError)r% rg r r r �_overload_dummy� s r� c C s t S )a Decorator for overloaded functions/methods. In a stub file, place two or more stub definitions for the same function in a row, each decorated with @overload. For example: @overload def utf8(value: None) -> None: ... @overload def utf8(value: bytes) -> bytes: ... @overload def utf8(value: str) -> bytes: ... In a non-stub file (i.e. a regular .py file), do the same but follow it with an implementation. The implementation should *not* be decorated with @overload. For example: @overload def utf8(value: None) -> None: ... @overload def utf8(value: bytes) -> bytes: ... @overload def utf8(value: str) -> bytes: ... def utf8(value): # implementation goes here )r� )�funcr r r r@ � s �CT_co)r` Zboundc @ s e Zd ZdZdZdS )r5 a� A special construct usable to annotate class objects. For example, suppose we have the following classes:: class User: ... # Abstract base for User classes class BasicUser(User): ... class ProUser(User): ... class TeamUser(User): ... And a function that takes a class argument that's a subclass of User and returns an instance of the corresponding class:: U = TypeVar('U', bound=User) def new_user(user_class: Type[U]) -> U: user = user_class() # (Here we could write the user object to a database) return user joe = new_user(BasicUser) At this point the type checker knows that joe has type BasicUser. r N)r r r rR r r r r r r5 � s )�extrac C sH t t| �r(t�| � tt| �t� | < dS t t| �r@t�| � dS dS dS )z� Returns True if the given type isn't defined in typing but is defined in collections_abc. Adds the type to __all__ if the collection is found in either typing or collection_abc. FTN)�hasattrrk �__all__�append�getattr�globals�collections_abc)Z type_namer r r � _define_guard� s r� c s e Zd Z� fdd�Z� ZS )�_ExtensionsGenericMetac s� t jdd� dks$t jdd� dk rN| jdk rNt �d�jd dkrJtd��d S | js`t� �|�S | j� |�}|t k rx|S | j|j kr�d S x,| j� � D ] }t |t�r�q�t||�r�d S q�W d S ) a* This mimics a more modern GenericMeta.__subclasscheck__() logic (that does not have problems with recursion) to work around interactions between collections, typing, and typing_extensions on older versions of Python, see https://github.com/python/typing/issues/501. Nr )r rG r )r rG r ri r )�abc� functoolszCParameterized generics cannot be used with class or instance checksFT)�sys� version_info� __origin__� _getframe� f_globalsr � __extra__rU rQ �__subclasshook__r, r* �__subclasses__rx r � issubclass)rN �subclass�resZscls)rY r r rQ s$ $ z(_ExtensionsGenericMeta.__subclasscheck__)r r r rQ rZ r r )rY r r� s r� � Awaitablec @ s e Zd ZdZdS )r� r N)r r r r r r r r r� ! s )r[ r� � Coroutinec @ s e Zd ZdZdS )r� r N)r r r r r r r r r� ' s � AsyncIterablec @ s e Zd ZdZdS )r� r N)r r r r r r r r r� . s � AsyncIteratorc @ s e Zd ZdZdS )r� r N)r r r r r r r r r� 5 s c @ s e Zd ZdZdd� ZdS )r8 r c O s* t | t�rtj||�S ttj| f|�|�S )N)r' r8 � collections�dequer# )r r% rg r r r r$ C s z Deque.__new__N)r r r r r$ r r r r r8 > s c @ s e Zd ZdZdd� ZdS )r8 r c O s* | j tkrtj||�S ttj| f|�|�S )N)�_gorgr8 r� r� r# )r r% rg r r r r$ M s z Deque.__new__N)r r r r r$ r r r r r8 H s �AbstractContextManagerc @ s e Zd ZdZdS )r6 r N)r r r r r r r r r6 V s c @ s2 e Zd ZdZdd� Zejdd� �Zedd� �Z dS ) r6 r c C s | S )Nr )rN r r r � __enter__^ s zContextManager.__enter__c C s d S )Nr )rN �exc_type� exc_value� tracebackr r r �__exit__a s zContextManager.__exit__c C s8 | t kr4tdd� |jD ��r4tdd� |jD ��r4dS tS )Nc s s | ]}d |j kV qdS )r� N)r+ )�.0r1 r r r � <genexpr>m s z2ContextManager.__subclasshook__.<locals>.<genexpr>c s s | ]}d |j kV qdS )r� N)r+ )r� r1 r r r r� n s T)r6 �anyr* r, )r r- r r r r� e s z ContextManager.__subclasshook__N) r r r r r� r� �abstractmethodr� � classmethodr� r r r r r6 [ s �AsyncContextManager�AbstractAsyncContextManagerc @ s e Zd ZdZdS )r� r N)r r r r r r r r r� w s )r rG a� class AsyncContextManager(typing.Generic[T_co]): __slots__ = () async def __aenter__(self): return self @abc.abstractmethod async def __aexit__(self, exc_type, exc_value, traceback): return None @classmethod def __subclasshook__(cls, C): if cls is AsyncContextManager: return _check_methods_in_mro(C, "__aenter__", "__aexit__") return NotImplemented __all__.append('AsyncContextManager') c @ s e Zd ZdZdd� ZdS )r9 r c O s* t | t�rtj||�S ttj| f|�|�S )N)r' r9 r� � defaultdictr# )r r% rg r r r r$ � s zDefaultDict.__new__N)r r r r r$ r r r r r9 � s c @ s e Zd ZdZdd� ZdS )r9 r c O s* | j tkrtj||�S ttj| f|�|�S )N)r� r9 r� r� r# )r r% rg r r r r$ � s zDefaultDict.__new__N)r r r r r$ r r r r r9 � s )r rG ri �_TIntc s e Zd ZdZ� fdd�Z� ZS )� _CounterMetazMetaclass for Counterc s t � �|tf�S )N)rU rn �int)rN rm )rY r r rn � s z_CounterMeta.__getitem__)r r r rR rn rZ r r )rY r r� � s r� c @ s e Zd ZdZdd� ZdS )r7 r c O s* t | t�rtj||�S ttj| f|�|�S )N)r' r7 r� r# )r r% rg r r r r$ � s zCounter.__new__N)r r r r r$ r r r r r7 � s c @ s e Zd ZdZdd� ZdS )r7 r c O s* t | t�rtj||�S ttj| f|�|�S )N)r' r7 r� r# )r r% rg r r r r$ � s zCounter.__new__N)r r r r r$ r r r r r7 � s c @ s e Zd ZdZdd� ZdS )r7 r c O s* | j tkrtj||�S ttj| f|�|�S )N)r� r7 r� r# )r r% rg r r r r$ � s zCounter.__new__N)r r r r r$ r r r r r7 � s �ChainMapc @ s e Zd ZdZdd� ZdS )r� r c O s* t | t�rtj||�S ttj| f|�|�S )N)r' r� r� r# )r r% rg r r r r$ � s zChainMap.__new__N)r r r r r$ r r r r r� � s c @ s e Zd ZdZdd� ZdS )r� r c O s* | j tkrtj||�S ttj| f|�|�S )N)r� r� r� r# )r r% rg r r r r$ � s zChainMap.__new__N)r r r r r$ r r r r r� � s �AsyncGeneratorc @ s e Zd ZdZdS )r� r N)r r r r r r r r r� � s c C s dd� }| |_ ||_|S )aQ NewType creates simple unique types with almost zero runtime overhead. NewType(name, tp) is considered a subtype of tp by static type checkers. At runtime, NewType(name, tp) returns a dummy function that simply returns its argument. Usage:: UserId = NewType('UserId', int) def name_by_id(user_id: UserId) -> str: ... UserId('user') # Fails type check name_by_id(42) # Fails type check name_by_id(UserId(42)) # OK num = UserId(5) + 1 # type: int c S s | S )Nr )r r r r �new_type s zNewType.<locals>.new_type)r Z __supertype__)rV rf r� r r r r? s c C s8 t | t�st�t| d�r | jS x| jdk r2| j} q W | S )z@This function exists for compatibility with old typing versions.r� N)rx r �AssertionErrorr� r� r� )r r r r r� . s r� c C sL t }xBt| jdd� �D ],\}}t|t�rt|�tkr| j|d }qW |S )z@This function exists for compatibility with old typing versions.N���ri )�object� enumerater* rx r r� r )r Z next_in_mro�i�cr r r r 9 s r r �Iterable�Iterator�Hashable�Sized� Container� Collection� Reversiblec C sz t � }xn| jd d� D ]\}|jdkr&qt|di �}x>t|j�� �t|�� � D ] }|�d�sN|dkrN|�|� qNW qW |S )Nr� )rH r �__annotations__�_abc_)�__abstractmethods__r� � __weakref__� _is_protocol�_is_runtime_protocolr+ �__args__r �__next_in_mro__r r� �__orig_bases__r� � __tree_hash__rR r� rh r$ r �_MutableMapping__markerr� ) �setr* r r� �listr+ �keys� startswith�add)r �attrs�base� annotations�attrr r r �_get_protocol_attrsH s r� c s t � fdd�t� �D ��S )Nc 3 s | ]}t t� |d ��V qd S )N)�callabler� )r� r� )r r r r� \ s z,_is_callable_members_only.<locals>.<genexpr>)�allr� )r r )r r �_is_callable_members_only[ s r� c sZ e Zd ZdZes d � fdd� Z� fdd�Z� fdd�Z� fd d �ZesRe d d � �Z � Z S )� _ProtocolMetaz�Internal metaclass for Protocol. This exists so Protocol classes can be generic without deriving from Generic. Nc sL |d ks t �|d k r<|d k s t �tdd� |D ��s:t |��n�t|�}d } xJ|D ]B} | tkrbtd��t| t�rN| jttfkrN| d k r�td��| j } qNW | d kr�|} njt |�} t | �� | � k�stdd� � fdd�|D ��t dd� |D ��r�d nd d� d d� | D ��f ��| }|} |d k �r>t |�tjk�r>||k�r>|f| }td d� |D ��}t d d� |D ���rvtdd� |D ��}|�||d�� tt| �j| |||dd�} tt| ��d|�s�| nt|�� || _ |�r�tdd� |D ��nd | _t| �| _|d k�r | | _n|d k �r|j| _|j| _t | d��rH|�r8t | � � �n tt| �� � | _ | S )Nc s s | ]}t |t�V qd S )N)rx r )r� �tr r r r� p s z(_ProtocolMeta.__new__.<locals>.<genexpr>z!Cannot inherit from plain GenericzACannot inherit from Generic[...] or Protocol[...] multiple times.z1Some type variables (%s) are not listed in %s[%s]z, c 3 s | ]}|� krt |�V qd S )N)�str)r� r� )�gvarsetr r r� � s c s s | ]}|j tkV qd S )N)r� r )r� �br r r r� � s r rH c s s | ]}t |�V qd S )N)r� )r� �gr r r r� � s c s s$ | ] }t |t�rt|�n|V qd S )N)rx r r� )r� r� r r r r� � s c s s | ]}t |t�o|tk V qd S )N)rx r r )r� r� r r r r� � s c s s | ]}|t k r|V qd S )N)r )r� r� r r r r� � s )r� r� T)rS r� c s s* | ]"}|t krd n|tkr dn|V qdS ).r N)r r )r� �ar r r r� � s r )!r� r� r r r rx r r� rH r r� r� r� rj r� �ABCMetar� �updaterU r$ � __setattr__r� r� r r� r� � _abc_registry� _abc_cacher� rv r rw r� )r rV rW rX �tvarsr% �originr� � orig_bases�gvarsr� �tvarsetZ initial_basesrN )rY )r� r r$ i sj z_ProtocolMeta.__new__c s� t � j||� � j�dd �s2tdd� � jD ��� _� jr�xf� jdd � D ]T}|tt fksH|j dkrl|j t ksHt |t�r||jsHt |t�r�|jt ksHtd| ��qHW dd� }|� _� fd d �}d � jkr�|� _d S ) Nr� c s s* | ]"}|t kp t|t�o |jt kV qd S )N)rH rx r� r� )r� r� r r r r� � s z)_ProtocolMeta.__init__.<locals>.<genexpr>ri zcollections.abcz7Protocols can only inherit from other protocols, got %rc _ s t | �jrtd��d S )Nz Protocols cannot be instantiated)rj r� r )rN r% r& r r r �_no_init� s z(_ProtocolMeta.__init__.<locals>._no_initc s� � j �dd �stS t| t�s$td��xtt� �D ]h}xb| jD ]T}||j kr\|j | d krZtS P t|di �}t|t j �r:||kr:t| t �r:| j r:P q:W tS q.W dS )Nr� z"issubclass() arg 1 must be a classr� T) r+ �getr, rx rj r r� r* r� rk �Mappingr� r� )ry r� r� r� )r r r � _proto_hook� s$ z+_ProtocolMeta.__init__.<locals>._proto_hookr� )rU rh r+ r� r� r| r� r* r� r r r �_PROTO_WHITELISTrx r r r� r r� )r r% r& r� r� r� )rY )r r rh � s& z_ProtocolMeta.__init__c sZ t �dd�rt��r$t� j��r$dS �jrJt� �fdd�t��D ��rJdS tt��� � �S )Nr� FTc 3 s8 | ]0}t � |�o.tt�|d �� p.t� |�d k V qd S )N)r� r� r� )r� r� )�instancerN r r r� � s z2_ProtocolMeta.__instancecheck__.<locals>.<genexpr>) r� r� r� rY r� r� r� rU r rP )rN r� )rY )r� rN r rP � s z _ProtocolMeta.__instancecheck__c s� | j d k r*t�d�jd dkr&td��dS | j�dd �rf| j�dd �sft�d�jd dkr^dS td ��| j�dd �r�t| �s�t�d�jd dkr�tt | �� |�S td ��tt | �� |�S ) Nri r )r� r� zCParameterized generics cannot be used with class or instance checksFr� r� )r� r� rk zBInstance and class checks can only be used with @runtime protocolsz<Protocols with non-method members don't support issubclass()) r� r� r� r� r r+ r� r� rU r rQ )rN r )rY r r rQ � s z _ProtocolMeta.__subclasscheck__c s, t |t�s|f}|s.t| �tk r.td| j ��d� t� fdd�|D ��}| ttfkr�tdd� |D ��srtd| ��t t |��t |�kr�td| ��|}|}nP| tt fkr�t |�}|}n6| j ttfkr�tdt| � ��nt| |� t |�}|}| j d kr�| fnd }| j| j|| j t| j�||| | j| jd �S ) Nz)Parameter list to %s[...] cannot be emptyz*Parameters to generic types must be types.c 3 s | ]}t |� �V qd S )N)r )r� �p)�msgr r r� s z,_ProtocolMeta.__getitem__.<locals>.<genexpr>c s s | ]}t |t�V qd S )N)rx r )r� r� r r r r� s z0Parameters to %r[...] must all be type variablesz(Parameters to %r[...] must all be uniquez'Cannot subscript already-subscripted %sr )r� r% r� r� r� )rx r� r� r r r r rH r� r r� r r r� r r" rY r r| r r+ r� r� )rN �paramsr� r% Zprependr )r� r rn sD z_ProtocolMeta.__getitem__)NNNNN) r r r rR � OLD_GENERICSr$ rh rP rQ r rn rZ r r )rY r r� b s @ / r� c @ s e Zd ZdZdZdZdd� ZdS )rH a� Base class for protocol classes. Protocol classes are defined as:: class Proto(Protocol): def meth(self) -> int: ... Such classes are primarily used with static type checkers that recognize structural subtyping (static duck-typing), for example:: class C: def meth(self) -> int: return 0 def func(x: Proto) -> int: return x.meth() func(C()) # Passes static type check See PEP 544 for details. Protocol classes decorated with @typing_extensions.runtime act as simple-minded runtime protocol that checks only the presence of given attributes, ignoring their type signatures. Protocol classes can be generic, they are defined as:: class GenProto({bases}): def meth(self) -> T: ... r Tc O sB t | �tkrtd��tr.tt| �| f|�|�S t| j| f|�|�S )NzIType Protocol cannot be instantiated; it can be used only as a base class)r� rH r r r# r r� )r r% rg r r r r$ J s zProtocol.__new__N)r r r rR r r� r$ r r r r rH * s )r[ zProtocol, Generic[T]z Protocol[T])rW )r r� �_collect_type_varsc s e Zd Z� fdd�Z� ZS )r� c sV t � dd�rt� �r$t�j� �r$dS � jrJt� �fdd�t� �D ��rJdS t� ���S )Nr� FTc 3 s8 | ]0}t �|�o.tt� |d �� p.t�|�d k V qd S )N)r� r� r� )r� r� )r r� r r r� d s z2_ProtocolMeta.__instancecheck__.<locals>.<genexpr>) r� r� r� rY r� r� r� rU rP )r r� )rY )r r� r rP \ s z _ProtocolMeta.__instancecheck__)r r r rP rZ r r )rY r r� Y s c s< e Zd ZdZdZdZ� fdd�Zedd� �Zdd � Z � Z S ) rH a� Base class for protocol classes. Protocol classes are defined as:: class Proto(Protocol): def meth(self) -> int: ... Such classes are primarily used with static type checkers that recognize structural subtyping (static duck-typing), for example:: class C: def meth(self) -> int: return 0 def func(x: Proto) -> int: return x.meth() func(C()) # Passes static type check See PEP 544 for details. Protocol classes decorated with @typing_extensions.runtime act as simple-minded runtime protocol that checks only the presence of given attributes, ignoring their type signatures. Protocol classes can be generic, they are defined as:: class GenProto(Protocol[T]): def meth(self) -> T: ... r Tc s | t krtd��t� �| �S )NzIType Protocol cannot be instantiated; it can only be used as a base class)rH r rU r$ )r r% rg )rY r r r$ � s zProtocol.__new__c s� t |t�s|f}|s,| tk r,td�| j���d� t� fdd�|D ��}| tkr�tdd� |D ��s�d}xt || t�r~|d7 }qfW td�|d || ���t t |��t |�kr�td ��n t | |� t | |�S ) Nz)Parameter list to {}[...] cannot be emptyz*Parameters to generic types must be types.c 3 s | ]}t |� �V qd S )N)r )r� r� )r� r r r� � s z-Protocol.__class_getitem__.<locals>.<genexpr>c s s | ]}t |t�V qd S )N)rx r )r� r� r r r r� � s r ri zJParameters to Protocol[...] must all be type variables. Parameter {} is {}z.Parameters to Protocol[...] must all be unique) rx r� r r rl r rH r� r r r� r" r� )r r r� r )r� r �__class_getitem__� s( zProtocol.__class_getitem__c s� g }d� j krt� jk}n t� jk}|r0td��d� j k�rt� j�}d }xN� jD ]D}t|t�rR|jtt fkrR|jtkr|dnd}|d k r�td��|j }qRW |d kr�|}nZt |�}t |��|�ks�d� �fdd�|D ��} d� d d� |D ��} td � | || ���|}t|�� _ � j �d d ��s2td d� � jD ��� _� fd d�} d� j k�rP| � _� j�s\d S xV� jD ]L}|ttfk�sd|jdk�r�|jtk�sdt|t��r�|j�sdtd| ���qdW dd� } | � _d S )Nr� z!Cannot inherit from plain Genericr rH zECannot inherit from Generic[...] and/or Protocol[...] multiple types.z, c 3 s | ]}|� krt |�V qd S )N)r� )r� r� )r� r r r� � s z-Protocol.__init_subclass__.<locals>.<genexpr>c s s | ]}t |�V qd S )N)r� )r� r� r r r r� � s z1Some type variables ({}) are not listed in {}[{}]r� c s s | ]}|t kV qd S )N)rH )r� r� r r r r� � s c s� � j �dd �stS t� dd�s>t�d�jd dkr6tS td��t� �sft�d�jd dkr^tS td��t | t �sxtd ��xtt � �D ]h}xb| j D ]T}||j kr�|j | d kr�tS P t|d i �}t |t j�r�||kr�t | t�r�| jr�P q�W tS q�W d S ) Nr� r� Fr( r )r� r� zBInstance and class checks can only be used with @runtime protocolsz<Protocols with non-method members don't support issubclass()z"issubclass() arg 1 must be a classr� T)r+ r� r, r� r� r� r� r r� rx rj r� r* rk r� r� r� )ry r� r� r� )r r r r� � s4 z/Protocol.__init_subclass__.<locals>._proto_hookr� zcollections.abcz7Protocols can only inherit from other protocols, got %rc _ s t | �jrtd��d S )Nz Protocols cannot be instantiated)rj r� r )rN r% r& r r r r� s z,Protocol.__init_subclass__.<locals>._no_init)r+ r r� r| r r rx r� r� rH r r� r� rl r� r� r� r� r� r� r r r� r� rh ) r r% r& r� �errorr� r� Zthe_baser� Zs_varsZs_argsr� r� r )r r� r �__init_subclass__� sZ zProtocol.__init_subclass__) r r r rR r r� r$ r r r rZ r r )rY r rH k s c C s& t | t�r| js td| ��d| _| S )a4 Mark a protocol class as a runtime protocol, so that it can be used with isinstance() and issubclass(). 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This allows a simple-minded structural check very similar to the one-offs in collections.abc such as Hashable. zB@runtime_checkable can be only applied to protocol classes, got %rT)rx r� r� r r� )r r r r rJ s c @ s$ e Zd ZdZejed�dd��ZdS )r; r )�returnc C s d S )Nr )rN r r r � __index__. s zSupportsIndex.__index__N)r r r r r� r� r� r r r r r r; * s )r � c C s> y t �d�jd dkr td��W n ttfk r8 Y nX dS )Nri r )r� r� rk z4TypedDict does not support instance and class checksF)r� r� r� r �AttributeError� ValueError)r ry r r r � _check_fails8 s r c O s, | s t d��| d | dd � }} t| |�S )Nz)TypedDict.__new__(): not enough argumentsr ri )r r )r% r& �_r r r � _dict_newC s r z,($cls, _typename, _fields=None, /, **kwargs))�totalc O sX |s t d��|d |dd � }}|r>|d |dd � }}n4d|krj|�d�}dd l}|jdtdd� nt d��|r�y |\}W q� tk r� t d �t|�d ���Y q�X n<d |kr�t|�dkr�|�d �}dd l}|jd tdd� nd }|d kr�|}n|�rt d ��t|�| d �}y t � d�j � dd�|d< W n t tfk �rJ Y nX t|d|�S )Nz)TypedDict.__new__(): not enough argumentsr ri Z _typenamez5Passing '_typename' as keyword argument is deprecatedr( )� stacklevelzGTypedDict.__new__() missing 1 required positional argument: '_typename'zLTypedDict.__new__() takes from 2 to 3 positional arguments but {} were given�_fieldsz3Passing '_fields' as keyword argument is deprecatedz@TypedDict takes either a dict or keyword arguments, but not both)r� � __total__r �__main__r r )r r �warnings�warn�DeprecationWarningr rl r r r� r� r� r� r �_TypedDictMeta)r r% r& r �typenamer �fields�nsr r r �_typeddict_newK sB r z;($cls, _typename, _fields=None, /, *, total=True, **kwargs)c s& e Zd Zd� fdd� Ze ZZ� ZS )r Tc s |dkr t nt|d< tt| ��| |tf|�}i }|�di �}t|�� �}d� � fdd�|� � D �}t� } t� } xH|D ]@} |� | j �di �� | � | j �dd�� | � | j �d d�� qtW |� |� |r�| � |� n | � |� ||_ t | �|_t | �|_t|d ��s||_|S ) Nr: r$ r� z?TypedDict('Name', {f0: t0, f1: t1, ...}); each t must be a typec s i | ]\}}t �|� �|�qS r )rk r )r� �nrf )r� r r � <dictcomp>� s z*_TypedDictMeta.__new__.<locals>.<dictcomp>�__required_keys__r �__optional_keys__r )r r rU r r$ r r� r� r� �itemsr� r+ r� � frozensetr r r� r ) r rV rW r r Ztp_dictr� Zown_annotationsZown_annotation_keysZ required_keysZ optional_keysr� )rY )r� r r$ { s0 z_TypedDictMeta.__new__)T)r r r r$ r rP rQ rZ r r )rY r r z s &r a� A simple typed name space. At runtime it is equivalent to a plain dict. TypedDict creates a dictionary type that expects all of its instances to have a certain set of keys, with each key associated with a value of a consistent type. This expectation is not checked at runtime but is only enforced by type checkers. Usage:: class Point2D(TypedDict): x: int y: int label: str a: Point2D = {'x': 1, 'y': 2, 'label': 'good'} # OK b: Point2D = {'z': 3, 'label': 'bad'} # Fails type check assert Point2D(x=1, y=2, label='first') == dict(x=1, y=2, label='first') The type info can be accessed via the Point2D.__annotations__ dict, and the Point2D.__required_keys__ and Point2D.__optional_keys__ frozensets. TypedDict supports two additional equivalent forms:: Point2D = TypedDict('Point2D', x=int, y=int, label=str) Point2D = TypedDict('Point2D', {'x': int, 'y': int, 'label': str}) The class syntax is only supported in Python 3.6+, while two other syntax forms work for Python 2.7 and 3.2+ c sH e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Zd d � Zd d � Z � Z S )�_AnnotatedAliasaK Runtime representation of an annotated type. At its core 'Annotated[t, dec1, dec2, ...]' is an alias for the type 't' with extra annotations. The alias behaves like a normal typing alias, instantiating is the same as instantiating the underlying type, binding it to types is also the same. c s2 t |t�r|j| }|j}t� �||� || _d S )N)rx r! � __metadata__r� rU rh )rN r� �metadata)rY r r rh � s z_AnnotatedAlias.__init__c C s$ t |�dkst�|d }t|| j�S )Nri r )r r� r! r" )rN r r� r r r � copy_with� s z_AnnotatedAlias.copy_withc C s& d� t�| j�d�dd� | jD ���S )Nz#typing_extensions.Annotated[{}, {}]z, c s s | ]}t |�V qd S )N)r )r� r� r r r r� � s z+_AnnotatedAlias.__repr__.<locals>.<genexpr>)rl rk rt r� r� r" )rN r r r rs � s z_AnnotatedAlias.__repr__c C s t jt| jf| j ffS )N)�operator�getitemrF r� r" )rN r r r � __reduce__� s z_AnnotatedAlias.__reduce__c C s* t |t�stS | j|jkr dS | j|jkS )NF)rx r! r, r� r" )rN ry r r r rz � s z_AnnotatedAlias.__eq__c C s t | j| jf�S )N)rv r� r" )rN r r r rw � s z_AnnotatedAlias.__hash__) r r r rR rh r$ rs r' rz rw rZ r r )rY r r! � s r! c @ s0 e Zd ZdZdZdd� Zedd� �Zdd� Zd S ) rF a� Add context specific metadata to a type. Example: Annotated[int, runtime_check.Unsigned] indicates to the hypothetical runtime_check module that this type is an unsigned int. Every other consumer of this type can ignore this metadata and treat this type as int. The first argument to Annotated must be a valid type (and will be in the __origin__ field), the remaining arguments are kept as a tuple in the __extra__ field. Details: - It's an error to call `Annotated` with less than two arguments. - Nested Annotated are flattened:: Annotated[Annotated[T, Ann1, Ann2], Ann3] == Annotated[T, Ann1, Ann2, Ann3] - Instantiating an annotated type is equivalent to instantiating the underlying type:: Annotated[C, Ann1](5) == C(5) - Annotated can be used as a generic type alias:: Optimized = Annotated[T, runtime.Optimize()] Optimized[int] == Annotated[int, runtime.Optimize()] OptimizedList = Annotated[List[T], runtime.Optimize()] OptimizedList[int] == Annotated[List[int], runtime.Optimize()] r c O s t d��d S )Nz&Type Annotated cannot be instantiated.)r )r r% r& r r r r$ s zAnnotated.__new__c C sL t |t�rt|�dk r td��d}t�|d |�}t|dd � �}t||�S )Nr( zUAnnotated[...] should be used with at least two arguments (a type and an annotation).z$Annotated[t, ...]: t must be a type.r ri )rx r� r r rk r r! )r r r� r� r# r r r r s zAnnotated.__class_getitem__c O s t d�| j���d S )Nz Cannot subclass {}.Annotated)r rl r )r r% r& r r r r & s zAnnotated.__init_subclass__N) r r r rR r r$ r r r r r r r rF � s c C s\ t | t�rt| j�S t | tj�rXtdd� | jD ��}|| jkrB| S | �|�}| j |_ |S | S )z2Strips the annotations from a given type. c s s | ]}t |�V qd S )N)�_strip_annotations)r� r� r r r r� 1 s z%_strip_annotations.<locals>.<genexpr>) rx r! r( r� rk r� r� r� r$ Z_special)r� Z stripped_argsr� r r r r( + s r( c C s* t j| ||d�}|r|S dd� |�� D �S )a] Return type hints for an object. This is often the same as obj.__annotations__, but it handles forward references encoded as string literals, adds Optional[t] if a default value equal to None is set and recursively replaces all 'Annotated[T, ...]' with 'T' (unless 'include_extras=True'). The argument may be a module, class, method, or function. The annotations are returned as a dictionary. For classes, annotations include also inherited members. TypeError is raised if the argument is not of a type that can contain annotations, and an empty dictionary is returned if no annotations are present. BEWARE -- the behavior of globalns and localns is counterintuitive (unless you are familiar with how eval() and exec() work). The search order is locals first, then globals. - If no dict arguments are passed, an attempt is made to use the globals from obj (or the respective module's globals for classes), and these are also used as the locals. If the object does not appear to have globals, an empty dictionary is used. - If one dict argument is passed, it is used for both globals and locals. - If two dict arguments are passed, they specify globals and locals, respectively. )rp rq c S s i | ]\}}t |�|�qS r )r( )r� �kr� r r r r [ s z"get_type_hints.<locals>.<dictcomp>)rk rE r )rO rp rq Zinclude_extrasZhintr r r rE 9 s c C s t | �dko | �d�o | �d�S )z3Returns True if name is a __dunder_variable_name__.� �__)r r� �endswith)rV r r r � _is_dunder_ s r- c s� e Zd ZdZ� fdd�Zedd� �Zdd� Zd� fd d � Zd d � Z e � fd d��Z dd� Z dd� Z � fdd�Zdd� Zdd� Z� ZS )� AnnotatedMetazMetaclass for Annotatedc s8 t dd� |D ��r"tdtt� ��t� j| |||f|�S )Nc s s | ]}|t k V qd S )N)r� )r� r� r r r r� k s z(AnnotatedMeta.__new__.<locals>.<genexpr>zCannot subclass )r� r r� rF rU r$ )r rV rW rX r& )rY r r r$ j s zAnnotatedMeta.__new__c C s | � � d S )Nr( )r )rN r r r r" o s zAnnotatedMeta.__metadata__c C sP |\}}}t |t�s t�|�}n|d �|�}d�dd� |D ��}d|||f S )Nr z, c s s | ]}t |�V qd S )N)r )r� �argr r r r� y s z+AnnotatedMeta._tree_repr.<locals>.<genexpr>z %s[%s, %s])rx r� rk rt � _tree_reprr� )rN �treer r� r# Ztp_reprZmetadata_reprsr r r r0 s s zAnnotatedMeta._tree_reprNc sh | t kr t S t� j||d�}t|d t�rd|d d t krd|d d }|d d }t |||d fS |S )N)r� r% ri r r( )rF rU r rx r� )rN r� r% r� Zsub_tpZ sub_annot)rY r r r | s zAnnotatedMeta._subs_treec C sX | j dkrtd��| �� }x"t|t�r<|d tkr<|d }q W t|t�rP|d S |S dS )z6Return the class used to create instance of this type.NzCCannot get the underlying type of a non-specialized Annotated type.r ri )r� r r rx r� rF )rN r1 r r r � _get_cons� s zAnnotatedMeta._get_consc s� t |t�s|f}| jd k r&t� �|�S t |t�r<t|�dk rFtd��n$d}t�|d |�}t|dd � �}| j | j | j t | j �t|f�||f| d�S )Nr( z]Annotated[...] should be instantiated with at least two arguments (a type and an annotation).z$Annotated[t, ...]: t must be a type.r ri )r� r% r� )rx r� r� rU rn r r rk r rY r r| r r+ r )rN r r� rf r# )rY r r rn � s zAnnotatedMeta.__getitem__c O s6 | � � }|||�}y | |_W n tk r0 Y nX |S )N)r2 Z__orig_class__r )rN r% r& Zcons�resultr r r �__call__� s zAnnotatedMeta.__call__c C s, | j d k r t|�s t| �� |�S t|��d S )N)r� r- r� r2 r )rN r� r r r � __getattr__� s zAnnotatedMeta.__getattr__c sJ t |�s|�d�r"t� �||� n$| jd kr6t|��nt| �� ||� d S )Nr� )r- r� rU r� r� r �setattrr2 )rN r� �value)rY r r r� � s zAnnotatedMeta.__setattr__c C s t d��d S )Nz+Annotated cannot be used with isinstance().)r )rN rO r r r rP � s z AnnotatedMeta.__instancecheck__c C s t d��d S )Nz+Annotated cannot be used with issubclass().)r )rN r r r r rQ � s z AnnotatedMeta.__subclasscheck__)NN)r r r rR r$ �propertyr" r0 r r2 r rn r4 r5 r� rP rQ rZ r r )rY r r. g s r. c @ s e Zd ZdZdS )rF av Add context specific metadata to a type. Example: Annotated[int, runtime_check.Unsigned] indicates to the hypothetical runtime_check module that this type is an unsigned int. Every other consumer of this type can ignore this metadata and treat this type as int. The first argument to Annotated must be a valid type, the remaining arguments are kept as a tuple in the __metadata__ field. Details: - It's an error to call `Annotated` with less than two arguments. - Nested Annotated are flattened:: Annotated[Annotated[T, Ann1, Ann2], Ann3] == Annotated[T, Ann1, Ann2, Ann3] - Instantiating an annotated type is equivalent to instantiating the underlying type:: Annotated[C, Ann1](5) == C(5) - Annotated can be used as a generic type alias:: Optimized = Annotated[T, runtime.Optimize()] Optimized[int] == Annotated[int, runtime.Optimize()] OptimizedList = Annotated[List[T], runtime.Optimize()] OptimizedList[int] == Annotated[List[int], runtime.Optimize()] N)r r r rR r r r r rF � s )r� c C s. t | t�rtS t | t�r | jS | tkr*tS dS )a Get the unsubscripted version of a type. This supports generic types, Callable, Tuple, Union, Literal, Final, ClassVar and Annotated. Return None for unsupported types. Examples:: get_origin(Literal[42]) is Literal get_origin(int) is None get_origin(ClassVar[int]) is ClassVar get_origin(Generic) is Generic get_origin(Generic[T]) is Generic get_origin(Union[T, int]) is Union get_origin(List[Tuple[T, T]][int]) == list N)rx r! rF r� r� r )rf r r r rD � s c C sd t | t�r| jf| j S t | t�r`| j}t| �tjj kr\|d t k r\t |dd� �|d f}|S dS )a� Get type arguments with all substitutions performed. For unions, basic simplifications used by Union constructor are performed. Examples:: get_args(Dict[str, int]) == (str, int) get_args(int) == () get_args(Union[int, Union[T, int], str][int]) == (int, str) get_args(Union[int, Tuple[T, int]][str]) == (int, Tuple[str, int]) get_args(Callable[[], T][int]) == ([], int) r Nr� r ) rx r! r� r" r� r� rD r� r� r �Ellipsisr� )rf r� r r r rC s � TypeAliasc @ s e Zd Zdd� ZdS )�_TypeAliasFormc C s d| j S )Nztyping_extensions.)r )rN r r r rs s z_TypeAliasForm.__repr__N)r r r rs r r r r r; s r; c C s t d�| ���dS )a& Special marker indicating that an assignment should be recognized as a proper type alias definition by type checkers. For example:: Predicate: TypeAlias = Callable[..., bool] It's invalid when used anywhere except as in the example above. z{} is not subscriptableN)r rl )rN r! r r r r: # s c @ s e Zd Zdd� ZdS )r; c C s d| j S )Nztyping_extensions.)r )rN r r r rs 3 s z_TypeAliasForm.__repr__N)r r r rs r r r r r; 2 s a� Special marker indicating that an assignment should be recognized as a proper type alias definition by type checkers. For example:: Predicate: TypeAlias = Callable[..., bool] It's invalid when used anywhere except as in the example above.c @ s e Zd ZdZdd� ZdS )�_TypeAliasMetazMetaclass for TypeAliasc C s dS )Nztyping_extensions.TypeAliasr )rN r r r rs F s z_TypeAliasMeta.__repr__N)r r r rR rs r r r r r< C s r< c @ s, e Zd ZdZdZdd� Zdd� Zdd� Zd S ) �_TypeAliasBasea& Special marker indicating that an assignment should be recognized as a proper type alias definition by type checkers. For example:: Predicate: TypeAlias = Callable[..., bool] It's invalid when used anywhere except as in the example above. r c C s t d��d S )Nz+TypeAlias cannot be used with isinstance().)r )rN rO r r r rP V s z _TypeAliasBase.__instancecheck__c C s t d��d S )Nz+TypeAlias cannot be used with issubclass().)r )rN r r r r rQ Y s z _TypeAliasBase.__subclasscheck__c C s dS )Nztyping_extensions.TypeAliasr )rN r r r rs \ s z_TypeAliasBase.__repr__N)r r r rR r rP rQ rs r r r r r= I s r= c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) r< zMetaclass for TypeAliasc C s t d��d S )Nz+TypeAlias cannot be used with isinstance().)r )rN rO r r r rP d s z _TypeAliasMeta.__instancecheck__c C s t d��d S )Nz+TypeAlias cannot be used with issubclass().)r )rN r r r r rQ g s z _TypeAliasMeta.__subclasscheck__c O s t d��d S )Nz Cannot instantiate TypeAlias)r )rN r% r& r r r r4 j s z_TypeAliasMeta.__call__N)r r r rR rP rQ r4 r r r r r< a s c @ s e Zd ZdZdZdS )r: a& Special marker indicating that an assignment should be recognized as a proper type alias definition by type checkers. For example:: Predicate: TypeAlias = Callable[..., bool] It's invalid when used anywhere except as in the example above. r N)r r r rR r r r r r r: m s )NNF)�r� r� � contextlibr� rk �collections.abcr� r% r r r r r� ZPEP_560rj r r r r r r � ImportErrorr Z SUBS_TREEr r r r r" r� r# r' Z _geqv_defined�_collections_abc�_check_methodsr2 r� ZHAVE_ANNOTATED�extendr� ZHAVE_PROTOCOLSrK rL rM rT r4 r\ r] r^ r_ ra rb rc r3 rd r{ Z _SpecialFormr~ r� r� r< r= r> r� r� r� r� r@ r5 r� r� r� r� r� r� r� r8 r� �MutableSequencer6 r� r� r� �execr9 r� �MutableMappingr7 r� r� r� �Dictr� r� r� r? rA r� rB r� r� r� r� rH r� rR rl r� r r� rJ rI r; r: r r �__text_signature__r r r r r rF rE r! r( r- r. rD rC r: r; r< r= r r r r �<module> sP 5 3 4 3 / - & I' & ,) )6 $b"