Fix gmflow_dir (#6583)

* remove sys.path

* update readme

examples/community/README.md

@@ -3414,15 +3414,13 @@ pipeline(prompt, uncond, inverted_latent, guidance_scale=7.5, num_inference_step
 
 ### Rerender A Video
 
-This is the Diffusers implementation of zero-shot video-to-video translation pipeline [Rerender A Video](https://github.com/williamyang1991/Rerender_A_Video) (without Ebsynth postprocessing). To run the code, please install gmflow. Then modify the path in `examples/community/rerender_a_video.py`:
+This is the Diffusers implementation of zero-shot video-to-video translation pipeline [Rerender A Video](https://github.com/williamyang1991/Rerender_A_Video) (without Ebsynth postprocessing). To run the code, please install gmflow. Then modify the path in `gmflow_dir`. After that, you can run the pipeline with:
 
 ```py
+import sys
 gmflow_dir = "/path/to/gmflow"
-```
-
-After that, you can run the pipeline with:
+sys.path.insert(0, gmflow_dir)
 
-```py
 from diffusers import ControlNetModel, AutoencoderKL, DDIMScheduler
 from diffusers.utils import export_to_video
 import numpy as np

examples/community/rerender_a_video.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import sys
 from dataclasses import dataclass
 from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
@@ -21,6 +20,7 @@ import PIL.Image
 import torch
 import torch.nn.functional as F
 import torchvision.transforms as T
+from gmflow.gmflow import GMFlow
 from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer
 
 from diffusers.image_processor import VaeImageProcessor
@@ -32,12 +32,6 @@ from diffusers.pipelines.stable_diffusion.safety_checker import StableDiffusionS
 from diffusers.schedulers import KarrasDiffusionSchedulers
 from diffusers.utils import BaseOutput, deprecate, logging
 from diffusers.utils.torch_utils import is_compiled_module, randn_tensor
-
-
-gmflow_dir = "/path/to/gmflow"
-sys.path.insert(0, gmflow_dir)
-from gmflow.gmflow import GMFlow  # noqa: E402
-
 from utils.utils import InputPadder  # noqa: E402