Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
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def repeat(x: T, n: int) -> List[T]:
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type(None).
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Union[Union[int, str], float] == Union[int, str, float]
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Union[int] == int # The constructor actually returns int
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Union[int, str, int] == Union[int, str]
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class Employee: pass
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Union[Manager, int, Employee] == Union[int, Employee]
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z_Union.__getitem__c C s> | t kr t S t| ||}t|}t|dkr4|d S t f| S )NrK r )r r r rk )r[ rb r\ r rC rC rD r % s z_Union._subs_treec C s6 t |tr| j|jkS | tk r*| j |kS | |kS d S )N)rl r r r r )r[ r rC rC rD r . s
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_Union.__eq__c C s | j S )N)r )r[ rC rC rD r 6 s z_Union.__hash__c C s t dd S )Nz(Unions cannot be used with isinstance().)rP )r[ r rC rC rD r 9 s z_Union.__instancecheck__c C s t dd S )Nz(Unions cannot be used with issubclass().)rP )r[ rV rC rC rD r < s z_Union.__subclasscheck__)r r r r )NN)NN)rA rd r@ rg rq rU ra rc rf r r r r r r r r ri rC rC )rZ rD r s *
r c @ s e Zd ZdZf Zedd ZdS )r zEOptional type.
Optional[X] is equivalent to Union[X, None].
c C s t |d}t|td f S )Nz#Optional[t] requires a single type.)r} r ro )r[ r{ rC rC rD r K s
z_Optional.__getitem__N)rA rd r@ rg rq r r rC rC rC rD r C s r c C sJ t }x@t| jdd D ]*\}}t|tr|jtkr| j|d }qW |S )zHelper for Generic.__new__.
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Generic[...] in cls.__mro__.
NrK )objectr __mro__rl r r r
)rV Z next_in_mror crC rC rD _next_in_mroT s
r c s, t jtjr fdd}n fdd}|S )zConstruct a __subclasshook__ callable that incorporates
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against cls.
c sZ j j| }|tk r|S j | jkr(dS x, j j D ] }t|trDq4t| |r4dS q4W tS )NT) __extra____subclasshook__r~ r __subclasses__rl r r )subclassresscls)rV rC rD
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z)_make_subclasshook..__extrahook__c s j rt| j rdS tS )NT)r r r~ )r )rV rC rD r y s )rl r abcABCMeta)rV r rC )rV rD _make_subclasshookb s r c C s2 t | }d|kr.x |d D ]}|j|d qW |S )zInternal helper: copy class __dict__ and clean slots class variables.
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rq N)dictpop)ZdctZ dict_copyZslotrC rC rD _no_slots_copy s
r c s e Zd ZdZd! fdd Zedd Zejdd Zedd Zejd
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fddZ fddZ d"ddZ
dd Zdd Zedd Z fdd Zd d Z fd d Z ZS )#r ac Metaclass for generic types.
This is a metaclass for typing.Generic and generic ABCs defined in
typing module. User defined subclasses of GenericMeta can override
__new__ and invoke super().__new__. Note that GenericMeta.__new__
has strict rules on what is allowed in its bases argument:
* plain Generic is disallowed in bases;
* Generic[...] should appear in bases at most once;
* if Generic[...] is present, then it should list all type variables
that appear in other bases.
In addition, type of all generic bases is erased, e.g., C[int] is
stripped to plain C.
Nc s |dk r0|dk st tdd |D s.t |n|dks@t ||dksPt ||dks`t |t|}d} xF|D ]>}
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jdddkr.z!Cannot inherit from plain Genericz0Cannot inherit from Generic[...] multiple types.z6Some type variables (%s) are not listed in Generic[%s]z, c 3 s | ]}| krt |V qd S )N)rm )r r )gvarsetrC rD r s c s s | ]}t |V qd S )N)rm )r grC rC rD r s c s s" | ]}t |tr|jn|V qd S )N)rl r r )r brC rC rD r s c s s | ]}t |to|tk V qd S )N)rl r r
)r r rC rC rD r s c s s | ]}|t k r|V qd S )N)r
)r r rC rC rD r s )r r r T)rO r c s s* | ]"}|t krd n|tkr f n|V qdS ).N)_TypingEllipsis _TypingEmpty)r arC rC rD r s r rA r r@ )$r allr r
rP rl r r r r rQ ro r r rn r updater rT rU __setattr__r r __next_in_mro____orig_bases__r r r
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orig_basesZgvarsbaseZtvarsetZ
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zGenericMeta.__new__c C s t | jtjr| jjS | jjS )N)rl r r r _abc_negative_cacher _abc_generic_negative_cache)r[ rC rC rD r s z GenericMeta._abc_negative_cachec C s, | j d kr(t| jtjr"|| j_n|| _d S )N)r rl r r r r r )r[ valuerC rC rD r s
c C s t | jtjr| jjS | jjS )N)rl r r r _abc_negative_cache_versionr #_abc_generic_negative_cache_version)r[ rC rC rD r s z'GenericMeta._abc_negative_cache_versionc C s, | j d kr(t| jtjr"|| j_n|| _d S )N)r rl r r r r r )r[ r rC rC rD r s
c C s | j r| jrt| j| d S )N)r r rc )r[ rb rC rC rD rc s zGenericMeta._get_type_varsc
s | j r| j j nd }| jr8t fdd| jD nd }|| j krT|| jkrT| S | j| j| jt| j|rtt |nd ||| j
| j dS )Nc 3 s | ]}t | V qd S )N)ra )r r )r_ r` rC rD r s z)GenericMeta._eval_type..)rb r\ r r r ) r ra r rn rZ rA __bases__r __dict__r r r )r[ r_ r` r r rC )r_ r` rD ra s $zGenericMeta._eval_typec s" | j d krt j S | j| j S )N)r rT rf r r )r[ )rZ rC rD rf + s
zGenericMeta.__repr__c st g }xV|dd D ]F}|f kr*|j d qt|tsD|j t| q|j |d j| qW t j ddj| S )NrK z()r z[%s]z, )r rl rn rS r rT rf rQ )r[ r r r{ )rZ rC rD r 0 s
zGenericMeta._tree_reprc C s* | j d kr| S t| ||}| jft| S )N)r r r rn )r[ rb r\ r rC rC rD r ; s
zGenericMeta._subs_treec C s6 t |tstS | jd ks"|jd kr*| |kS | j|jkS )N)rl r r~ r r )r[ r rC rC rD r A s
zGenericMeta.__eq__c C s | j S )N)r )r[ rC rC rD r H s zGenericMeta.__hash__c
s6 t |ts|f}| r0| jtk r0tdt| d t fdd|D }| tkrtdd |D sltdtt |t|krtd|}|}nb| tt
fkrt |}|}nH| t kr|}|}n6| j
tt fkrtdt| nt| | t |}|}| j
d kr| fnf }| 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 r )r rC rD r S s z*GenericMeta.__getitem__..c s s | ]}t |tV qd S )N)rl r )r r rC rC rD r V s z5Parameters to Generic[...] must all be type variablesz-Parameters to Generic[...] must all be uniquez'Cannot subscript already-subscripted %s)rb r\ r r r )rl rn r r rP rE r
r rk r r r r r r r rZ rA r r r r r )r[ r rb r\ ZprependrC )r rD r K sJ
zGenericMeta.__getitem__c sJ | j d k r*tjdjd dkr&tddS | tkr>td| t j|S ) NrK rA r r zCParameterized generics cannot be used with class or instance checksFz5Class %r cannot be used with class or instance checks)r r )r r> _getframe f_globalsrP r
rT r )r[ rV )rZ rC rD r y s
z GenericMeta.__subclasscheck__c C s t |j| S )N)r rZ )r[ r rC rC rD r s z GenericMeta.__instancecheck__c sT |j dr|jds(|j ds(| jd kr VT:
...
# Etc.
This class can then be used as follows::
def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:
try:
return mapping[key]
except KeyError:
return default
c O s& | j tkrtdt| j| f||S )NzHType Generic cannot be instantiated; it can be used only as a base class)r r
rP r r )rV r\ r] rC rC rD rU s
zGeneric.__new__N)rA rd r@ rg rq rU rC rC rC rD r
s )rr c @ s e Zd ZdZdS )r zInternal placeholder for () or []. Used by TupleMeta and CallableMeta
to allow empty list/tuple in specific places, without allowing them
to sneak in where prohibited.
N)rA rd r@ rg rC rC rC rD r s r c @ s e Zd ZdZdS )r z(Internal placeholder for ... (ellipsis).N)rA rd r@ rg rC rC rC rD r s r c s4 e Zd ZdZe fddZdd Zdd Z ZS ) TupleMetaz Metaclass for Tuple (internal).c s | j d k s| jtk r t j|S |f kr6t jtfS t|tsF|f}t|dkr|d dkrd t |d }t j|t
fS d t fdd|D }t j|S ) Nr rK .z Tuple[t, ...]: t must be a type.r z*Tuple[t0, t1, ...]: each t must be a type.c 3 s | ]}t | V qd S )N)r} )r r )r rC rD r s z(TupleMeta.__getitem__..) r r r rT r r rl rn rk r} r )r[ r r )rZ )r rD r s
zTupleMeta.__getitem__c C s | j d krt|tS tdd S )Nz5Parameterized Tuple cannot be used with isinstance().)r rl rn rP )r[ r rC rC rD r s
zTupleMeta.__instancecheck__c C s | j d krt|tS tdd S )Nz5Parameterized Tuple cannot be used with issubclass().)r r rn rP )r[ rV rC rC rD r s
zTupleMeta.__subclasscheck__) rA rd r@ rg r r r r ri rC rC )rZ rD r
s r
c @ s e Zd ZdZf Zdd ZdS )r a@ Tuple type; Tuple[X, Y] is the cross-product type of X and Y.
Example: Tuple[T1, T2] is a tuple of two elements corresponding
to type variables T1 and T2. Tuple[int, float, str] is a tuple
of an int, a float and a string.
To specify a variable-length tuple of homogeneous type, use Tuple[T, ...].
c O s$ | j tkrtdtt| f||S )Nz6Type Tuple cannot be instantiated; use tuple() instead)r r rP r rn )rV r\ r] rC rC rD rU s
z
Tuple.__new__N)rA rd r@ rg rq rU rC rC rC rD r s )r rr c sH e Zd ZdZ fddZ fddZ fddZe fdd Z Z S )
CallableMetaz"Metaclass for Callable (internal).c s" | j d krt j S | j| j S )N)r rT rf r r )r[ )rZ rC rD rf s
zCallableMeta.__repr__c s | j tk rt j|S g }xB|dd D ]2}t|tsF|jt| q(|j|d j| q(W |d dkrt|d d|d S t|d ddj |d d |d f S ) NrK r z...z [..., %s]z
[[%s], %s]z, r r )
r r rT r rl rn r rS r rQ )r[ r r r{ )rZ rC rD r s
zCallableMeta._tree_reprc s | j dk s| jtk r t j|S t|t s8t|dkr@td|\}}|t krZt |f}n$t|t
srtd|f t||f}| j |S )zxA thin wrapper around __getitem_inner__ to provide the latter
with hashable arguments to improve speed.
Nr z6Callable must be used as Callable[[arg, ...], result].z8Callable[args, result]: args must be a list. Got %.100r.) r r r rT r rl rn rk rP Ellipsislist__getitem_inner__)r[ r r\ result)rZ rC rD r * s
zCallableMeta.__getitem__c s^ |\}}d t | }|tkr.t jt|fS d t fdd|D }||f }t j|S )Nz.Callable[args, result]: result must be a type.z6Callable[[arg, ...], result]: each arg must be a type.c 3 s | ]}t | V qd S )N)r} )r r{ )r rC rD r F s z1CallableMeta.__getitem_inner__..)r} r rT r r rn )r[ r r\ r )rZ )r rD r > s
z CallableMeta.__getitem_inner__)
rA rd r@ rg rf r r r r ri rC rC )rZ rD r s
r c @ s e Zd ZdZf Zdd ZdS )r a Callable type; Callable[[int], str] is a function of (int) -> str.
The subscription syntax must always be used with exactly two
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There is no syntax to indicate optional or keyword arguments,
such function types are rarely used as callback types.
c O s& | j tkrtdt| j| f||S )NzIType Callable cannot be instantiated; use a non-abstract subclass instead)r r rP r r )rV r\ r] rC rC rD rU X s
zCallable.__new__N)rA rd r@ rg rq rU rC rC rC rD r K s c sN e Zd ZdZdZdddZdd Zdd Z fd
d Zd d
Z dd Z
Z S )r a3 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)r )r[ tpr] rC rC rD r^ r s z_ClassVar.__init__c C sP t | }| jd kr4|t|dj|jdd ddS tdj|jdd d S )Nz {} accepts only single type.rK T)rO z {} cannot be further subscripted)ro r r} formatrA rP )r[ itemrV rC rC rD r u s
z_ClassVar.__getitem__c C s, t | j||}|| jkr | S t| |ddS )NT)rO )ra r ro )r[ r_ r` Znew_tprC rC rD ra ~ s
z_ClassVar._eval_typec s, t j }| jd k r(|djt| j7 }|S )Nz[{}])rT rf r r rS )r[ r)rZ rC rD rf s
z_ClassVar.__repr__c C s t t| j| jfS )N)r ro rA r )r[ rC rC rD r s z_ClassVar.__hash__c C s, t |tstS | jd k r$| j|jkS | |kS )N)rl r r~ r )r[ r rC rC rD r s
z_ClassVar.__eq__)r )N) rA rd r@ rg rq r^ r ra rf r r ri rC rC )rZ rD r _ s
r c C s |S )zCast a value to a type.
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to be as fast as possible).
rC )typvalrC rC rD r6 s c
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r Y nX | S )aI Decorator to indicate that annotations are not type hints.
The argument must be a class or function; if it is a class, it
applies recursively to all methods and classes defined in that class
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rl ro r copyr( r r valuesr r r" r9 rP )r{ Z arg_attrsr r r rC rC rD r9 s
c s t j fdd}|S )zDecorator to give another decorator the @no_type_check effect.
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function in @no_type_check.
c s | |}t |}|S )N)r9 )r\ r] r ) decoratorrC rD wrapped_decorator/ s
z2no_type_check_decorator..wrapped_decorator)r r )r- r. rC )r- rD r: ( s c O s t ddS )z*Helper for @overload to raise when called.zYou 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\ r] rC rC rD _overload_dummy8 s r0 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
)r0 )r rC rC rD r; A s c s0 e Zd ZdZ fddZdd Zdd Z ZS )
_ProtocolMetaz~Internal metaclass for _Protocol.
This exists so _Protocol classes can be generic without deriving
from Generic.
c s" t | jkrt j|S tdd S )Nz+Protocols cannot be used with isinstance().)r r rT r rP )r[ r )rZ rC rD r e s
z _ProtocolMeta.__instancecheck__c sL | j s
tS | tkrdS | j }x(|D ] t fdd|jD s$dS q$W dS )NTc 3 s | ]} |j kV qd S )N)r )r d)r rC rD r w s z2_ProtocolMeta.__subclasscheck__..F)rh r~ r _get_protocol_attrsr r )r[ rV attrsrC )r rD r j s
z _ProtocolMeta.__subclasscheck__c C s, g }x.| j D ]$}t|ddr |jdkr |j| q W t } x|D ]}x|jj D ]}x| j D ]&}||k r`||jkr`t|dd r`P q`W |jd rT|dkrT|dkrT|dkrT|dkrT|dkrT|d krT|d
krT|d krT|d krT|d
krT|dkrT|dkrT|dkrT|dkrT|dkrT|dkrT|j| qTW qBW |S )Nrh Fr r __abstractmethods__r# rj r r r rq r3 r r r r r r rd ) r r rA r r r keysrL add)r[ Zprotocol_basesr r4 r r rC rC rD r3 { s< z!_ProtocolMeta._get_protocol_attrs)rA rd r@ rg r r r3 ri rC rC )rZ rD r1 ^ s r1 c @ s e Zd ZdZf ZdZdS )r zInternal base class for protocol classes.
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AsyncIterablec @ s e Zd Zf ZdS )r: N)rA rd r@ rq rC rC rC rD r: s c @ s e Zd Zf ZdS )
AsyncIteratorN)rA rd r@ rq rC rC rC rD r; s r; c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s c @ s" e Zd Zf ZeedddZdS )r* )returnc C s d S )NrC )r[ rC rC rD __int__ s zSupportsInt.__int__N)rA rd r@ rq r intr= rC rC rC rD r* s c @ s" e Zd Zf ZeedddZdS )r) )r< c C s d S )NrC )r[ rC rC rD __float__ s zSupportsFloat.__float__N)rA rd r@ rq r floatr? rC rC rC rD r) s c @ s" e Zd Zf ZeedddZdS )r( )r< c C s d S )NrC )r[ rC rC rD __complex__ s zSupportsComplex.__complex__N)rA rd r@ rq r complexrA rC rC rC rD r( s c @ s" e Zd Zf ZeedddZdS )r' )r< c C s d S )NrC )r[ rC rC rD __bytes__ s zSupportsBytes.__bytes__N)rA rd r@ rq r bytesrC rC rC rC rD r' s c @ s" e Zd Zf ZeedddZdS )r& )r< c C s d S )NrC )r[ rC rC rD __abs__ s zSupportsAbs.__abs__N)rA rd r@ rq r r rE rC rC rC rD r& s c @ s& e Zd Zf ZedeedddZdS )r+ r )ndigitsr< c C s d S )NrC )r[ rF rC rC rD __round__ s zSupportsRound.__round__N)r )rA rd r@ rq r r> r rG rC rC rC rD r+ s c @ s e Zd Zf ZdS )r% N)rA rd r@ rq rC rC rC rD r%
s c @ s" e Zd Zf ZeddddZdS )r% zIterator[T_co])r< c C s d S )NrC )r[ rC rC rD __reversed__ s zReversible.__reversed__N)rA rd r@ rq r rH rC rC rC rD r%
s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s
Collectionc @ s e Zd Zf ZdS )rI N)rA rd r@ rq rC rC rC rD rI s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r ' s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r + s c @ s e Zd Zf ZdS )r! N)rA rd r@ rq rC rC rC rD r! 0 s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r 6 s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r : s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r ? s c @ s e Zd Zf ZdS )r" N)rA rd r@ rq rC rC rC rD r" E s c @ s e Zd Zf ZdS )r" N)rA rd r@ rq rC rC rC rD r" I s c @ s e Zd Zf ZdS )r" N)rA rd r@ rq rC rC rC rD r" M s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r R s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r V s c @ s e Zd Zf Zdd ZdS )r0 c O s$ | j tkrtdtt| f||S )Nz4Type List cannot be instantiated; use list() instead)r r0 rP r r )rV r\ r] rC rC rD rU ^ s
z List.__new__N)rA rd r@ rq rU rC rC rC rD r0 Z s c @ s e Zd Zf Zdd ZdS )r- c O s* | j tkrtj||S ttj| f||S )N)r r- collectionsdequer )rV r\ r] rC rC rD rU i s
z
Deque.__new__N)rA rd r@ rq rU rC rC rC rD r- e s c @ s e Zd Zf Zdd ZdS )r1 c O s$ | j tkrtdtt| f||S )Nz2Type Set cannot be instantiated; use set() instead)r r1 rP r r )rV r\ r] rC rC rD rU s s
z Set.__new__N)rA rd r@ rq rU rC rC rC rD r1 o s c @ s e Zd Zf Zdd ZdS )r2 c O s$ | j tkrtdtt| f||S )Nz>Type FrozenSet cannot be instantiated; use frozenset() instead)r r2 rP r r )rV r\ r] rC rC rD rU } s
zFrozenSet.__new__N)rA rd r@ rq rU rC rC rC rD r2 z s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s c @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s c @ s e Zd Zf ZdS )r$ N)rA rd r@ rq rC rC rC rD r$ s AbstractContextManagerc @ s e Zd Zf ZdS )r N)rA rd r@ rq rC rC rC rD r s c @ s2 e Zd Zf Zdd Zejdd Zedd Z dS )r c C s | S )NrC )r[ rC rC rD __enter__ s zContextManager.__enter__c C s d S )NrC )r[ exc_type exc_value tracebackrC rC rD __exit__ s zContextManager.__exit__c C s8 | t kr4tdd |jD r4tdd |jD r4dS tS )Nc s s | ]}d |j kV qdS )rM N)r )r BrC rC rD r s z2ContextManager.__subclasshook__..c s s | ]}d |j kV qdS )rQ N)r )r rR rC rC rD r s T)r r r r~ )rV CrC rC rD r s
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rA rd r@ rq rM r r rQ classmethodr rC rC rC rD r s AbstractAsyncContextManagerc @ s e Zd Zf ZdS )AsyncContextManagerN)rA rd r@ rq rC rC rC rD rV s rV a
class AsyncContextManager(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:
if sys.version_info[:2] >= (3, 6):
return _collections_abc._check_methods(C, "__aenter__", "__aexit__")
if (any("__aenter__" in B.__dict__ for B in C.__mro__) and
any("__aexit__" in B.__dict__ for B in C.__mro__)):
return True
return NotImplemented
__all__.append('AsyncContextManager')
c @ s e Zd Zf Zdd ZdS )r. c O s$ | j tkrtdtt| f||S )Nz4Type Dict cannot be instantiated; use dict() instead)r r. rP r r )rV r\ r] rC rC rD rU s
z Dict.__new__N)rA rd r@ rq rU rC rC rC rD r. s c @ s e Zd Zf Zdd ZdS )r/ c O s* | j tkrtj||S ttj| f||S )N)r r/ rJ defaultdictr )rV r\ r] rC rC rD rU s
zDefaultDict.__new__N)rA rd r@ rq rU rC rC rC rD r/ s c @ s e Zd Zf Zdd ZdS )r, c O s* | j tkrtj||S ttj| f||S )N)r r, rJ r )rV r\ r] rC rC rD rU s
zCounter.__new__N)rA rd r@ rq rU rC rC rC rD r, s ChainMapc @ s e Zd Zf Zdd ZdS )rY c O s* | j tkrtj||S ttj| f||S )N)r rY rJ r )rV r\ r] rC rC rD rU s
zChainMap.__new__N)rA rd r@ rq rU rC rC rC rD rY s c @ s e Zd Zf Zdd ZdS )r4 c O s$ | j tkrtdtt| f||S )Nz@Type Generator cannot be instantiated; create a subclass instead)r r4 rP r _G_base)rV r\ r] rC rC rD rU s
zGenerator.__new__N)rA rd r@ rq rU rC rC rC rD r4 s AsyncGeneratorc @ s e Zd Zf ZdS )r[ N)rA rd r@ rq rC rC rC rD r[ s CT_co)r r c @ s e Zd ZdZf ZdS )r 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.
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class Employee(NamedTuple):
name: str
id: int
This is equivalent to::
Employee = collections.namedtuple('Employee', ['name', 'id'])
The resulting class has extra __annotations__ and _field_types
attributes, giving an ordered dict mapping field names to types.
__annotations__ should be preferred, while _field_types
is kept to maintain pre PEP 526 compatibility. (The field names
are in the _fields attribute, which is part of the namedtuple
API.) Alternative equivalent keyword syntax is also accepted::
Employee = NamedTuple('Employee', name=str, id=int)
In Python versions <= 3.5 use::
Employee = NamedTuple('Employee', [('name', str), ('id', int)])
TNc K s: |rt rtd|d kr$|j }n |r0tdt||S )Nz>Keyword syntax for NamedTuple is only supported in Python 3.6+zIEither list of fields or keywords can be provided to NamedTuple, not both)rn rP r( rd )r[ rr ZfieldskwargsrC rC rD rU s
zNamedTuple.__new__)N)rA rd r@ rg rO rU rC rC rC rD r3 y s c C s dd }| |_ ||_|S )a% 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 )NrC )rB rC rC rD new_type s zNewType..new_type)rA Z
__supertype__)rW r rv rC rC rD r8 s Fc @ s e Zd ZdZf ZeedddZeedddZe dddd Z
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ee dd d Ze dIOa Generic base class for TextIO and BinaryIO.
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NOTE: This does not distinguish between the different possible
classes (text vs. binary, read vs. write vs. read/write,
append-only, unbuffered). The TextIO and BinaryIO subclasses
below capture the distinctions between text vs. binary, which is
pervasive in the interface; however we currently do not offer a
way to track the other distinctions in the type system.
)r< c C s d S )NrC )r[ rC rC rD mode s zIO.modec C s d S )NrC )r[ rC rC rD rW s zIO.nameNc C s d S )NrC )r[ rC rC rD close s zIO.closec C s d S )NrC )r[ rC rC rD closed s z IO.closedc C s d S )NrC )r[ rC rC rD fileno s z IO.filenoc C s d S )NrC )r[ rC rC rD flush s zIO.flushc C s d S )NrC )r[ rC rC rD isatty s z IO.isattyrK )r] r< c C s d S )NrC )r[ r] rC rC rD read s zIO.readc C s d S )NrC )r[ rC rC rD readable s z IO.readable)limitr< c C s d S )NrC )r[ r rC rC rD readline s z IO.readline)hintr< c C s d S )NrC )r[ r rC rC rD readlines s z IO.readlinesr )offsetwhencer< c C s d S )NrC )r[ r r rC rC rD seek s zIO.seekc C s d S )NrC )r[ rC rC rD seekable s z IO.seekablec C s d S )NrC )r[ rC rC rD tell s zIO.tell)sizer< c C s d S )NrC )r[ r rC rC rD truncate s z IO.truncatec C s d S )NrC )r[ rC rC rD writable s z IO.writable)sr< c C s d S )NrC )r[ r rC rC rD write s zIO.write)linesr< c C s d S )NrC )r[ r rC rC rD
writelines s z
IO.writelinesz
IO[AnyStr]c C s d S )NrC )r[ rC rC rD rM s z IO.__enter__c C s d S )NrC )r[ ro r rP rC rC rD rQ s z IO.__exit__r )r r )r r )r )r )N) rA rd r@ rg rq r rm rx rW r ry r rz r> r{ r| r} r5 r~ r r r0 r r r r r r r r rM rQ rC rC rC rD rw sT rw c @ sB e Zd ZdZf Zeeeef e dddZ
ed dddZ dS ) BinaryIOz5Typed version of the return of open() in binary mode.)r r< c C s d S )NrC )r[ r rC rC rD r ) s zBinaryIO.write)r< c C s d S )NrC )r[ rC rC rD rM - s zBinaryIO.__enter__N) rA rd r@ rg rq r r rD bytearrayr> r rM rC rC rC rD r $ s r c @ s e Zd ZdZf ZeedddZeedddZ ee
e dddZ ee dd d
Z
eedd d Zed dd
dZdS )TextIOz3Typed version of the return of open() in text mode.)r< c C s d S )NrC )r[ rC rC rD buffer7 s z
TextIO.bufferc C s d S )NrC )r[ rC rC rD encoding; s zTextIO.encodingc C s d S )NrC )r[ rC rC rD errors? s z
TextIO.errorsc C s d S )NrC )r[ rC rC rD line_bufferingC s zTextIO.line_bufferingc C s d S )NrC )r[ rC rC rD newlinesG s zTextIO.newlinesc C s d S )NrC )r[ rC rC rD rM K s zTextIO.__enter__N)rA rd r@ rg rq r r r rm r r r r r r
r r rM rC rC rC rD r 2 s r c @ s& e Zd ZdZdddgZeZeZeZdS )ioz)Wrapper namespace for IO generic classes.rw r r N)rA rd r@ rg __all__rw r r rC rC rC rD r P s
r z.ioPatternr c C s | j S )N)pattern)r rC rC rD ^ s r Matchc C s | j jS )N)rer )mrC rC rD r ` s c @ s e Zd ZdZddgZeZeZdS )r z&Wrapper namespace for re type aliases.r r N)rA rd r@ rg r r r rC rC rC rD r c s r z.re)r r )NN)NN)r rW )r r ) rU r^ rq re rf rg rb rh ri rj rk )rd rA r@ r# )r r r rJ
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