[Custom pipeline] Easier loading of local pipelines

[patrickvonplaten]

Fixes: #1141

Now it's much easier to load custom pipelines locally.

from diffusers import DiffusionPipeline

pipeline = DiffusionPipeline("CompVis/stable-diffusion-v1-4", custom_pipeline="/path/to/custom_pipe_in_wip.py")

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[chris-aeviator]

this should be documented!

[chris-aeviator]

this errors with No such file or directory: '/my-folder/examples/community/..configuration_utils.py' when doing

pipe = DiffusionPipeline.from_pretrained(
  model_path,
  custom_pipeline="/my-folder/examples/community/my_pipeline.py

if I run it a second time it errors with

FileNotFoundError: [Errno 2] No such file or directory: '/my-folder/examples/community/..models.py' 

third run

FileNotFoundError: [Errno 2] No such file or directory: '/home/korny/Development/TOFU/hf_diffusers/examples/community/..schedulers.py'

[patrickvonplaten]

@chris-aeviator,

Could you please open a new issue with a reproducible code snippet?