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UniverseManager

QuantConnect.Securities.UniverseManager 

UniverseManager()

Bases: BaseExtendedDictionary[Symbol, Universe, ConcurrentDictionary[Symbol, Universe]]

Manages the algorithm's collection of universes

Initializes a new instance of the UniverseManager class

collection_changed 

collection_changed: _EventContainer[
    Callable[[Object, UniverseManagerChanged], Any], Any
]

Event fired when a universe is added or removed

active_securities 

active_securities: IReadOnlyDictionary[Symbol, Security]

Read-only dictionary containing all active securities. An active security is a security that is currently selected by the universe or has holdings or open orders.

__getitem__ 

__getitem__(
    symbol: Union[Symbol, str, BaseContract],
) -> Universe

Gets or sets the element with the specified key

__setitem__ 

__setitem__(
    symbol: Union[Symbol, str, BaseContract],
    value: Universe,
) -> None

Gets or sets the element with the specified key

add 

add(
    key: Union[Symbol, str, BaseContract], value: Universe
) -> None

Adds an element with the provided key and value to the dictionary

on_collection_changed 

on_collection_changed(e: UniverseManagerChanged) -> None

Event invocator for the collection_changed event

This codeEntityType is protected.

process_changes 

process_changes() -> None

Will trigger collection changed event if required

remove 

remove(key: Union[Symbol, str, BaseContract]) -> bool

Removes the element with the specified key from the dictionary

update 

update(
    key: Union[Symbol, str, BaseContract],
    value: Universe,
    action: NotifyCollectionChangedAction,
) -> None

Updates an element with the provided key and value to the dictionary