Merge pull request #4192 from pipecat-ai/mb/update-langchain

Update langchain dependencies to latest major versions
2026-03-30 08:54:41 -04:00
parent 2e0f5fc6e9 81ddd103f9
commit d1eb2699f3
6 changed files with 150 additions and 79 deletions
--- a/changelog/4192.changed.md
+++ b/changelog/4192.changed.md
@@ -0,0 +1 @@
+- ⚠️ Updated `langchain` extra to require langchain 1.x (from 0.3.x), langchain-community 0.4.x (from 0.3.x), and langchain-openai 1.x (from 0.3.x). If you pin these packages in your project, update your pins accordingly.
--- a/examples/foundational/07b-interruptible-langchain.py
+++ b/examples/foundational/07b-interruptible-langchain.py
@@ -8,9 +8,9 @@
 import os

 from dotenv import load_dotenv
-from langchain.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_community.chat_message_histories import ChatMessageHistory
 from langchain_core.chat_history import BaseChatMessageHistory
+from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_core.runnables.history import RunnableWithMessageHistory
 from langchain_openai import ChatOpenAI
 from loguru import logger
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -81,7 +81,7 @@ inworld = []
 koala = [ "pvkoala~=2.0.3" ]
 kokoro = [ "kokoro-onnx>=0.5.0,<1", "requests>=2.32.5,<3" ]
 krisp = [ "pipecat-ai-krisp~=0.4.0" ]
-langchain = [ "langchain~=0.3.28", "langchain-community~=0.3.31", "langchain-openai~=0.3.29" ]
+langchain = [ "langchain>=1.2.13,<2", "langchain-community>=0.4.1,<1", "langchain-openai>=1.1.12,<2" ]
 lemonslice = [ "pipecat-ai[daily]" ]
 livekit = [ "livekit>=1.0.13,<2", "livekit-api>=1.0.5,<2", "tenacity>=8.2.3,<10.0.0", "pyjwt>=2.12.0,<3" ]
 lmnt = [ "pipecat-ai[websockets-base]" ]
--- a/src/pipecat/processors/frameworks/rtvi/observer.py
+++ b/src/pipecat/processors/frameworks/rtvi/observer.py
@@ -612,7 +612,7 @@ class RTVIObserver(BaseObserver):

            # Handle OpenAI format (original implementation)
            elif isinstance(message, dict):
-                if message["role"] == "user":
+                if message.get("role") == "user":
                    content = message["content"]
                    if isinstance(content, list):
                        text = " ".join(item["text"] for item in content if "text" in item)
--- a/tests/test_langchain.py
+++ b/tests/test_langchain.py
@@ -6,8 +6,8 @@

 import unittest

-from langchain.prompts import ChatPromptTemplate
 from langchain_core.language_models import FakeStreamingListLLM
+from langchain_core.prompts import ChatPromptTemplate

 from pipecat.frames.frames import (
    InterruptionFrame,
--- a/uv.lock
+++ b/uv.lock
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				`@@ -0,0 +1 @@`
				- ⚠️ Updated `langchain` extra to require langchain 1.x (from 0.3.x), langchain-community 0.4.x (from 0.3.x), and langchain-openai 1.x (from 0.3.x). If you pin these packages in your project, update your pins accordingly.