Align LTX Space runtime dependencies

app.py

@@ -6,6 +6,7 @@ import struct
 import subprocess
 import sys
 import tempfile
+import builtins
 from pathlib import Path
 
 import gradio as gr
@@ -71,14 +72,28 @@ def install_ltx_runtime():
 
 install_ltx_runtime()
 
-from ltx_core.loader import LTXV_LORA_COMFY_RENAMING_MAP, LoraPathStrengthAndSDOps
-from ltx_core.loader.primitives import StateDict
-from ltx_core.loader.sft_loader import SafetensorsStateDictLoader
-from ltx_core.model.video_vae import TilingConfig, get_video_chunks_number
-from ltx_core.quantization import QuantizationPolicy
-from ltx_pipelines.distilled import DistilledPipeline
-from ltx_pipelines.utils.args import ImageConditioningInput
-from ltx_pipelines.utils.media_io import encode_video
+
+_real_import = builtins.__import__
+
+
+def _import_without_xformers(name, globals=None, locals=None, fromlist=(), level=0):
+    if name == "xformers" or name.startswith("xformers."):
+        raise ImportError("xformers is disabled for this Space runtime")
+    return _real_import(name, globals, locals, fromlist, level)
+
+
+builtins.__import__ = _import_without_xformers
+try:
+    from ltx_core.loader import LTXV_LORA_COMFY_RENAMING_MAP, LoraPathStrengthAndSDOps
+    from ltx_core.loader.primitives import StateDict
+    from ltx_core.loader.sft_loader import SafetensorsStateDictLoader
+    from ltx_core.model.video_vae import TilingConfig, get_video_chunks_number
+    from ltx_core.quantization import QuantizationPolicy
+    from ltx_pipelines.distilled import DistilledPipeline
+    from ltx_pipelines.utils.args import ImageConditioningInput
+    from ltx_pipelines.utils.media_io import encode_video
+finally:
+    builtins.__import__ = _real_import
 
 
 _SAFETENSORS_DTYPE_MAP = {

requirements.txt

@@ -2,15 +2,17 @@ gradio>=5.29.0
 spaces
 huggingface_hub>=0.24.0
 
+torch==2.8.0
+torchaudio==2.8.0
 einops
 numpy
-transformers>=4.52
+transformers==4.57.6
 safetensors
 accelerate
-scipy>=1.14
+scipy
 av
 tqdm
 Pillow
-imageio
-imageio-ffmpeg
 sentencepiece
+scikit-image>=0.25.2
+flashpack==0.1.2