https://pythonflow.com/tags/pipe-operator/ Recent content in Pipe-Operator on Pythonflow Hugo en-us alicandonmez90@gmail.com (flowfelis) alicandonmez90@gmail.com (flowfelis) Sat, 20 Jun 2026 07:00:00 +0100 https://pythonflow.com/posts/langbot-day-4-lcel/ Sat, 20 Jun 2026 07:00:00 +0100alicandonmez90@gmail.com (flowfelis) https://pythonflow.com/posts/langbot-day-4-lcel/ <p><strong>Recap:</strong> On Day 1 we built a basic CLI chatbot. Day 2 gave it memory so it remembers the conversation. Day 3 added a prompt template so LangBot has a personality. But every turn still requires two separate steps — format the template, then call the model. Today we stitch them together into one fluid pipeline.</p> <hr> <h2 id="the-problem-two-steps-where-one-should-do">The problem: two steps where one should do</h2> <p>Here is how LangBot works on Day 3. Every single turn:</p>