{"slug": "building-your-first-ai-agent-with-python-a-beginner-s-guide", "title": "Building Your First AI Agent with Python: A Beginner's Guide", "summary": "A developer built a beginner-friendly AI agent in Python that acts as a weather assistant. The agent uses OpenAI's API with function calling to query the OpenWeatherMap API and answer questions like \"What's the weather in Paris?\" The tutorial demonstrates the core pattern of an AI agent: perceiving input, deciding on actions, and using tools to achieve a goal.", "body_md": "AI agents are programs that can perceive information, decide what to do, and take actions toward a goal. Unlike a simple chatbot that only responds to prompts, an agent can use tools, follow steps, and adapt its behavior based on context. In this tutorial, you’ll build a small weather assistant agent in Python that can answer questions like “What’s the weather in Paris?” by calling a weather API.\n\nPrerequisites\n\nBefore you start, make sure you have:\n\nInstall the libraries:\n\nA simple agent usually follows this pattern:\n\nUse the result to generate a final response\n\nSet up your project\n\nCreate a file named agent.py and load your environment variables:\n\nThis function calls OpenWeatherMap and returns a simplified result.\n\nWe’ll use OpenAI’s API with function calling so the model can request the weather tool.\n\nConclusion\n\nYou just built your first AI agent. Starting with a weather assistant is a great way to learn the workflow without getting overwhelmed. From here, you can expand into more advanced agents with memory and multiple tools.", "url": "https://wpnews.pro/news/building-your-first-ai-agent-with-python-a-beginner-s-guide", "canonical_source": "https://dev.to/oviawe_nosa_78bf57cb51e41/building-your-first-ai-agent-with-python-a-beginners-guide-fe9", "published_at": "2026-07-19 01:16:52+00:00", "updated_at": "2026-07-19 01:57:38.987919+00:00", "lang": "en", "topics": ["artificial-intelligence", "ai-agents", "developer-tools", "natural-language-processing", "large-language-models"], "entities": ["Python", "OpenAI", "OpenWeatherMap"], "alternates": {"html": "https://wpnews.pro/news/building-your-first-ai-agent-with-python-a-beginner-s-guide", "markdown": "https://wpnews.pro/news/building-your-first-ai-agent-with-python-a-beginner-s-guide.md", "text": "https://wpnews.pro/news/building-your-first-ai-agent-with-python-a-beginner-s-guide.txt", "jsonld": "https://wpnews.pro/news/building-your-first-ai-agent-with-python-a-beginner-s-guide.jsonld"}}