Any chance class members like self._interrupt could be defined in __init__ across pipelines?

Description

class WanImageToVideoPipeline:
	def __init__(self):
		pass
	
	def __call__(self, *args, **kwargs):
		self._interrupt = False
		return 23

	@property
	def interrupt(self):
		return self._interrupt
	
pipe = WanImageToVideoPipeline()

def on_async_user_abort_call_me_any_time():
	# check if already interrupted but mid step
	print(pipe.interrupt)


on_async_user_abort_call_me_any_time()

AttributeError: 'WanImageToVideoPipeline' object has no attribute '_interrupt'. Did you mean: 'interrupt'?

Contributor guide

Tech stack

python

Domain

backenddeveloper experience

Issue type

bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

1

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

under 1 hour

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

needs maintainer response

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Python

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

90

Research direction

Check the init methods of all pipeline classes in the diffusers library (e.g., WanImageToVideoPipeline) to ensure that class members like self. interrupt are initialized in init rather than in call . This pattern is used across multiple pipelines, so a systematic fix is needed. See the reproduction in the issue for the specific error.