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Base class for Pixeltable iterators. View source on GitHub

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Methods

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close()

Close the iterator and release all resources Signature: 
close()-> None

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create()

Signature: 
create(**kwargs: Any)-> tuple[type[ComponentIterator], dict[str, Any]]

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input_schema()

Provide the Pixeltable types of the init() parameters The keys need to match the names of the init() parameters. This is equivalent to the parameters_types parameter of the @function decorator. Signature: 
input_schema(
    *args: Any,
    **kwargs: Any
)-> dict[str, pixeltable.type_system.ColumnType]

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output_schema()

Specify the dictionary returned by next() and a list of unstored column names Signature: 
output_schema(
    *args: Any,
    **kwargs: Any
)-> tuple[dict[str, pixeltable.type_system.ColumnType], list[str]]
Returns:
  • tuple[dict[str, pixeltable.type_system.ColumnType], list[str]]: a dictionary which is turned into a list of columns in the output table a list of unstored column names

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set_pos()

Set the iterator position to pos Signature: 
set_pos(pos: int)-> None
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