https://pythonflow.com/tags/memory/ Recent content in Memory on Pythonflow Hugo en-us alicandonmez90@gmail.com (flowfelis) alicandonmez90@gmail.com (flowfelis) Thu, 18 Jun 2026 07:00:00 +0100 https://pythonflow.com/posts/langbot-day-2-conversation-memory/ Thu, 18 Jun 2026 07:00:00 +0100alicandonmez90@gmail.com (flowfelis) https://pythonflow.com/posts/langbot-day-2-conversation-memory/ <p><strong>Recap:</strong> Yesterday we built LangBot — a 27-line CLI chatbot powered by <code>ChatOpenAI</code>. It works, but every message starts from scratch. Ask &ldquo;What&rsquo;s my name?&rdquo; and it invents one. Remind it &ldquo;My name is Alex&rdquo; and ask again — it still guesses. Today we fix that.</p> <hr> <h2 id="the-problem-amnesia-mode">The problem: amnesia mode</h2> <p>Try this in Day 1&rsquo;s LangBot:</p> <pre tabindex="0"><code>You: My favorite color is blue. LangBot: That&#39;s a great choice! Blue is calming and versatile. You: What did I just say my favorite color was? LangBot: I&#39;m not sure — you haven&#39;t mentioned a favorite color in this conversation. </code></pre><p>Every call to <code>llm.invoke()</code> sends a single <code>HumanMessage</code>. The model has zero context from previous turns. For a real chatbot, this is a dealbreaker.</p>