Replace flake8 with ruff and update black (huggingface#2279)

* before running make style

* remove left overs from flake8

* finish

* make fix-copies

* final fix

* more fixes

Author: patrickvonplaten

.github/workflows/pr_quality.yml

@@ -27,9 +27,8 @@ jobs:
           pip install .[quality]
       - name: Check quality
         run: |
-          black  --check --preview examples tests src utils scripts
-          isort --check-only examples tests src utils scripts
-          flake8 examples tests src utils scripts
+          black --check examples tests src utils scripts
+          ruff examples tests src utils scripts
           doc-builder style src/diffusers docs/source --max_len 119 --check_only --path_to_docs docs/source
 
   check_repository_consistency:

.gitignore

@@ -169,3 +169,6 @@ tags
 
 # dependencies
 /transformers
+
+# ruff
+.ruff_cache

CONTRIBUTING.md

@@ -177,7 +177,7 @@ Follow these steps to start contributing ([supported Python versions](https://gi
    $ make style
    ```
 
-   🧨 Diffusers also uses `flake8` and a few custom scripts to check for coding mistakes. Quality
+   🧨 Diffusers also uses `ruff` and a few custom scripts to check for coding mistakes. Quality
    control runs in CI, however you can also run the same checks with:
 
    ```bash

Makefile

@@ -9,9 +9,8 @@ modified_only_fixup:
 	$(eval modified_py_files := $(shell python utils/get_modified_files.py $(check_dirs)))
 	@if test -n "$(modified_py_files)"; then \
 		echo "Checking/fixing $(modified_py_files)"; \
-		black --preview $(modified_py_files); \
-		isort $(modified_py_files); \
-		flake8 $(modified_py_files); \
+		black $(modified_py_files); \
+		ruff $(modified_py_files); \
 	else \
 		echo "No library .py files were modified"; \
 	fi
@@ -41,9 +40,8 @@ repo-consistency:
 # this target runs checks on all files
 
 quality:
-	black --check --preview $(check_dirs)
-	isort --check-only $(check_dirs)
-	flake8 $(check_dirs)
+	black --check $(check_dirs)
+	ruff $(check_dirs)
 	doc-builder style src/diffusers docs/source --max_len 119 --check_only --path_to_docs docs/source
 	python utils/check_doc_toc.py
 
@@ -57,8 +55,8 @@ extra_style_checks:
 # this target runs checks on all files and potentially modifies some of them
 
 style:
-	black --preview $(check_dirs)
-	isort $(check_dirs)
+	black $(check_dirs)
+	ruff $(check_dirs) --fix
 	${MAKE} autogenerate_code
 	${MAKE} extra_style_checks
 

docs/source/en/conceptual/contribution.mdx

@@ -177,7 +177,7 @@ Follow these steps to start contributing ([supported Python versions](https://gi
    $ make style
    ```
 
-   🧨 Diffusers also uses `flake8` and a few custom scripts to check for coding mistakes. Quality
+   🧨 Diffusers also uses `ruff` and a few custom scripts to check for coding mistakes. Quality
    control runs in CI, however you can also run the same checks with:
 
    ```bash

docs/source/en/optimization/fp16.mdx

@@ -210,6 +210,7 @@ torch.set_grad_enabled(False)
 n_experiments = 2
 unet_runs_per_experiment = 50
 
+
 # load inputs
 def generate_inputs():
     sample = torch.randn(2, 4, 64, 64).half().cuda()
@@ -288,6 +289,8 @@ pipe = StableDiffusionPipeline.from_pretrained(
 
 # use jitted unet
 unet_traced = torch.jit.load("unet_traced.pt")
+
+
 # del pipe.unet
 class TracedUNet(torch.nn.Module):
     def __init__(self):

examples/community/bit_diffusion.py

@@ -1,11 +1,11 @@
 from typing import Optional, Tuple, Union
 
 import torch
+from einops import rearrange, reduce
 
 from diffusers import DDIMScheduler, DDPMScheduler, DiffusionPipeline, ImagePipelineOutput, UNet2DConditionModel
 from diffusers.schedulers.scheduling_ddim import DDIMSchedulerOutput
 from diffusers.schedulers.scheduling_ddpm import DDPMSchedulerOutput
-from einops import rearrange, reduce
 
 
 BITS = 8

examples/community/checkpoint_merger.py

@@ -10,10 +10,11 @@
 if is_safetensors_available():
     import safetensors.torch
 
+from huggingface_hub import snapshot_download
+
 from diffusers import DiffusionPipeline, __version__
 from diffusers.schedulers.scheduling_utils import SCHEDULER_CONFIG_NAME
 from diffusers.utils import CONFIG_NAME, DIFFUSERS_CACHE, ONNX_WEIGHTS_NAME, WEIGHTS_NAME
-from huggingface_hub import snapshot_download
 
 
 class CheckpointMergerPipeline(DiffusionPipeline):

examples/community/clip_guided_stable_diffusion.py

@@ -4,6 +4,8 @@
 import torch
 from torch import nn
 from torch.nn import functional as F
+from torchvision import transforms
+from transformers import CLIPFeatureExtractor, CLIPModel, CLIPTextModel, CLIPTokenizer
 
 from diffusers import (
     AutoencoderKL,
@@ -14,8 +16,6 @@
     UNet2DConditionModel,
 )
 from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion import StableDiffusionPipelineOutput
-from torchvision import transforms
-from transformers import CLIPFeatureExtractor, CLIPModel, CLIPTextModel, CLIPTokenizer
 
 
 class MakeCutouts(nn.Module):

examples/community/composable_stable_diffusion.py

@@ -16,6 +16,8 @@
 from typing import Callable, List, Optional, Union
 
 import torch
+from packaging import version
+from transformers import CLIPFeatureExtractor, CLIPTextModel, CLIPTokenizer
 
 from diffusers import DiffusionPipeline
 from diffusers.configuration_utils import FrozenDict
@@ -29,8 +31,6 @@
     PNDMScheduler,
 )
 from diffusers.utils import is_accelerate_available
-from packaging import version
-from transformers import CLIPFeatureExtractor, CLIPTextModel, CLIPTokenizer
 
 from ...utils import deprecate, logging
 from . import StableDiffusionPipelineOutput