Upload demo_train.py with huggingface_hub

demo_train.py

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+# /// script
+# dependencies = [
+#     "trl>=0.12.0",
+#     "peft>=0.7.0",
+#     "transformers>=4.36.0",
+#     "accelerate>=0.24.0",
+#     "trackio",
+# ]
+# ///
+
+import trackio
+from datasets import load_dataset
+from peft import LoraConfig
+from trl import SFTTrainer, SFTConfig
+
+# Initialize Trackio for real-time monitoring
+trackio.init(
+    project="qwen-demo-sft",
+    space_id="evalstate/demo-trackio-dashboard",
+    config={
+        "model": "Qwen/Qwen2.5-0.5B",
+        "dataset": "trl-lib/Capybara",
+        "examples": 50,
+        "max_steps": 20,
+        "note": "Quick demo training"
+    }
+)
+
+# Load dataset (only 50 examples for quick demo)
+dataset = load_dataset("trl-lib/Capybara", split="train[:50]")
+print(f"✅ Dataset loaded: {len(dataset)} examples")
+
+# Training configuration
+config = SFTConfig(
+    # Hub settings - CRITICAL for saving results
+    output_dir="qwen-demo-sft",
+    push_to_hub=True,
+    hub_model_id="evalstate/qwen-demo-sft",
+    
+    # Quick training settings
+    max_steps=20,  # Very short for demo
+    per_device_train_batch_size=2,
+    gradient_accumulation_steps=2,
+    learning_rate=2e-5,
+    
+    # Logging
+    logging_steps=5,
+    save_strategy="steps",
+    save_steps=10,
+    
+    # Monitoring
+    report_to="trackio",
+)
+
+# LoRA configuration (memory efficient)
+peft_config = LoraConfig(
+    r=16,
+    lora_alpha=32,
+    lora_dropout=0.05,
+    bias="none",
+    task_type="CAUSAL_LM",
+    target_modules=["q_proj", "v_proj"],
+)
+
+# Initialize and train
+trainer = SFTTrainer(
+    model="Qwen/Qwen2.5-0.5B",
+    train_dataset=dataset,
+    args=config,
+    peft_config=peft_config,
+)
+
+print("🚀 Starting demo training...")
+trainer.train()
+
+print("💾 Pushing to Hub...")
+trainer.push_to_hub()
+
+# Finish Trackio tracking
+trackio.finish()
+
+print("✅ Demo complete!")
+print(f"📦 Model: https://huggingface.co/evalstate/qwen-demo-sft")
+print(f"📊 Metrics: https://huggingface.co/spaces/evalstate/demo-trackio-dashboard")