# Checks your environment is ready for the course. Run: python check_setup.py import importlib.util import json import sys import urllib.request # (pip name, import name) for every package the course uses PACKAGES = [ ("psutil", "psutil"), ("requests", "requests"), ("boto3", "boto3"), ("fastapi", "fastapi"), ("uvicorn", "uvicorn"), ("langchain", "langchain"), ("langchain-core", "langchain_core"), ("langchain-ollama", "langchain_ollama"), ("langgraph", "langgraph"), ("pytest", "pytest"), ] def check_python(): v = sys.version_info ok = v >= (3, 10) mark = "ok" if ok else "!!" print(f"[{mark}] Python {v.major}.{v.minor} (need 3.10+)") return ok def check_packages(): missing = [] for pip_name, module in PACKAGES: found = importlib.util.find_spec(module) is not None print(f"[{'ok' if found else '!!'}] {pip_name}") if not found: missing.append(pip_name) return missing def check_ollama(): # Only needed for module 08, so this is a soft check — never fails the script. try: with urllib.request.urlopen("http://localhost:11434/api/tags", timeout=2) as r: models = [m.get("name", "") for m in json.load(r).get("models", [])] except Exception: print("[..] Ollama not reachable (only needed for module 08) -> run: ollama serve") return print(f"[ok] Ollama is running ({len(models)} model(s))") if any(m.startswith("llama3.2") for m in models): print("[ok] llama3.2 is pulled") else: print("[..] llama3.2 not pulled -> run: ollama pull llama3.2") def main(): print("Checking your environment...\n") py_ok = check_python() print() missing = check_packages() print() check_ollama() print() if not py_ok: print("Your Python is too old — install 3.10 or newer.") if missing: print("Missing packages:", ", ".join(missing)) print("Install them with: pip install -r requirements.txt") if py_ok and not missing: print("All set. You're ready for the course.") sys.exit(0) sys.exit(1) if __name__ == "__main__": main()