Add sitecustomize.py to patch pyairports module globally

app.py

@@ -10,7 +10,7 @@ import os, time, threading, subprocess, requests
 from fastapi import FastAPI, Request, Response
 import gradio as gr
 
-os.environ["VLLM_USE_OUTLINES"] = "0"   # turn off outlines so pyairports isn't imported
+os.environ["VLLM_USE_OUTLINES"] = "0"   # turn off outlines (pyairports patched via sitecustomize.py)
 
 MODEL_ID = os.environ.get("MODEL_ID", "Qwen/Qwen2.5-14B-Instruct-AWQ")
 API_PORT = int(os.environ.get("API_PORT", "8000"))  # vLLM internal port
@@ -34,15 +34,8 @@ if "AWQ" in MODEL_ID.upper():
 
 def launch_vllm():
     print(f"[vLLM] Launch: {MODEL_ID}")
-    # Debug: check if pyairports is available
-    try:
-        import pyairports
-        print(f"[DEBUG] pyairports found: {pyairports.__file__}")
-    except ImportError as e:
-        print(f"[DEBUG] pyairports NOT found: {e}")
-
     env = os.environ.copy()
-    env["VLLM_USE_OUTLINES"] = "0"  # disable outlines to avoid pyairports import
+    env["VLLM_USE_OUTLINES"] = "0"  # disable outlines
     subprocess.Popen(VLLM_ARGS, env=env)
 
 def wait_vllm_ready(timeout=900, interval=3):

requirements.txt

@@ -11,8 +11,5 @@ transformers>=4.44
 accelerate>=0.30
 
 # Structured outputs stack used by vLLM
-# Note: Even with VLLM_USE_OUTLINES=0, vLLM 0.5.5 imports outlines at module level
-outlines==0.0.46
-numba==0.59.1
-pycountry==24.6.1
-git+https://github.com/mborsetti/pyairports.git@v2.1.1
+# outlines is imported by vLLM 0.5.5 even with VLLM_USE_OUTLINES=0
+# We skip outlines dependencies and will patch the import

sitecustomize.py

@@ -0,0 +1,14 @@
+"""
+Sitecustomize to patch pyairports module before any imports.
+This runs automatically for all Python processes.
+"""
+import sys
+from types import ModuleType
+
+# Create fake pyairports module to satisfy outlines import
+# vLLM 0.5.5 imports outlines even when VLLM_USE_OUTLINES=0
+pyairports = ModuleType('pyairports')
+pyairports.airports = ModuleType('pyairports.airports')
+pyairports.airports.AIRPORT_LIST = []
+sys.modules['pyairports'] = pyairports
+sys.modules['pyairports.airports'] = pyairports.airports