Source Op

exception dffml.source.op.EmptyError

Raised when the source is still empty after running the opimp

exception dffml.source.op.NotEnoughArgs

Raised when the source was not given an arg for each operation input

exception dffml.source.op.OnlyOneOutputAllowedError

Raised when the opimp given has more than one output

class dffml.source.op.OpSource(config: Optional[MemorySourceConfig])

CONFIG

alias of OpSourceConfig

CONTEXT

alias of MemorySourceContext

class dffml.source.op.OpSourceConfig(opimp: dffml.df.base.OperationImplementation, args: List[str] = <factory>, allowempty: bool = False)

no_enforce_immutable()

By default, all properties of a config object are immutable. If you would like to mutate immutable properties, you must explicitly call this method using it as a context manager.

Examples

>>> from dffml import config
>>>
>>> @config
... class MyConfig:
...     C: int
>>>
>>> config = MyConfig(C=2)
>>> with config.no_enforce_immutable():
...     config.C = 1