Getting langsmith module not found error whenever running langchain Runnable invoke / batch()

[kb-0311]

Checked other resources

• [X] I added a very descriptive title to this issue.
• [X] I searched the LangChain documentation with the integrated search.
• [X] I used the GitHub search to find a similar question and didn't find it.
• [X] I am sure that this is a bug in LangChain rather than my code.
• [X] The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

from langchain_community.embeddings import DeterministicFakeEmbedding from langchain_community.vectorstores import Chroma, Milvus from langchain_core.documents import Document from langchain_core.runnables import Runnable, RunnableConfig from langchain_core.runnables.utils import Input, Output from langchain_core.vectorstores import VectorStore from langchain_text_splitters import TextSplitter, RecursiveCharacterTextSplitter

class AddOne(Runnable): def invoke(self , input:Input , config : Optional[RunnableConfig] = None) -> Output: return input+1

class Square(Runnable): def invoke(self , input:Input , config : Optional[RunnableConfig] = None) -> Output: return input**2

class Cube(Runnable): def invoke(self , input:Input , config : Optional[RunnableConfig] = None) -> Output: return input**3

class AddAll(Runnable): def invoke(self , input:dict , config : Optional[RunnableConfig] = None) -> Output: return sum(input.values())

def main_invoke(): chain = (AddOne() | { "square " : Square() , "cube" : Cube() } | AddAll()) print(chain.batch([2 , 10 , 11]))

main_invoke()

Error Message and Stack Trace (if applicable)

Traceback (most recent call last): File "", line 198, in _run_module_as_main File "", line 88, in _run_code File "/Users/kb-0311/Desktop/langchain/main.py", line 29, in main() File "/Users/kb-0311/Desktop/langchain/main.py", line 26, in main print(sequence.invoke(2)) # Output will be 9 ^^^^^^^^^^^^^^^^^^ File "/Users/kb-0311/Desktop/langchain/.venv/lib/python3.12/site-packages/langchain_core/runnables/base.py", line 2476, in invoke callback_manager = get_callback_manager_for_config(config) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/kb-0311/Desktop/langchain/.venv/lib/python3.12/site-packages/langchain_core/runnables/config.py", line 433, in get_callback_manager_for_config from langchain_core.callbacks.manager import CallbackManager File "/Users/kb-0311/Desktop/langchain/.venv/lib/python3.12/site-packages/langchain_core/callbacks/init.py", line 22, in from langchain_core.callbacks.manager import ( File "/Users/kb-0311/Desktop/langchain/.venv/lib/python3.12/site-packages/langchain_core/callbacks/manager.py", line 29, in from langsmith.run_helpers import get_run_tree_context ModuleNotFoundError: No module named 'langsmith.run_helpers'; 'langsmith' is not a package

Description

I am trying to run a basic example chain to understand lcel but cannot run or invoke my chain.

The error stack trace is given below.

All the packages are installed in a virtual env as well as my global pip lib/ in their latest versions.

System Info

pip freeze | grep langchain langchain==0.2.3 langchain-community==0.2.4 langchain-core==0.2.5 langchain-text-splitters==0.2.1 MacOS 14.5 Python3 version 3.12.3

[AmanVirmani]

I faced the exact same error. Problem was I was able to run the line:

from langsmith.run_helpers import get_run_tree_context

in python shell, which meant that the langsmith was correctly recognized as a package. Further digging helped me identify the root cause, which was a file named langsmith.py in my code base. I needed to rename it.

How did I find that out? I ran these commands in python shell:

import langsmith
langsmith.__file__

These commands gave me the local file location when I ran it from my code base directory but the actual package file location when ran outside the code directory. Please try the same in your code base and let me know if you still face this error.