captured functions have original seed injected

the following snippet:

from sacred import Experiment

ex = Experiment()

@ex.capture
def test(seed):
    print(seed)

@ex.automain
def main(_seed):
    test(_seed)
    test()

when run, generates:

$ python main.py with seed=42
WARNING - main - No observers have been added to this run
INFO - main - Running command 'main'
INFO - main - Started
767258318
42
INFO - main - Completed after 0:00:00

Is this intended behavior? I think it should at least give a warning about injecting the original seed instead of injecting _seed, it took me a while to understand why it was not reproducing due to both the missing parameter and the missing _ on the variable name.

[uatach]

Oh, actually, I think it’s a great feature… my main problem was that seed was being injected when I wasn’t expecting it… is there a way to avoid some arguments from being injected?

@ex.capture(ignore=['seed'])
def func(seed):
  pass

func()
# TypeError: func() missing 1 required positional argument: 'seed'

[stale[bot]]

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