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chatchat-space / Langchain-Chatchat

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Llama) RAG and Agent app with langchain
Apache License 2.0
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ModuleNotFoundError: No module named 'langchain' #3036

Closed Belonger closed 6 months ago

Belonger commented 9 months ago

Problem Description I install langchain this package. but when i run startup.py and in the browser open the address, give me this error.

Steps to Reproduce

  1. in the terminal input python startup.py -a
  2. in the browser input address
  3. give me this error QQ截图20240222103247 i don`t know how to solve this problem, hope you help me, thanks!
dosubot[bot] commented 9 months ago

🤖

Hey there, @Belonger! 🚀 Long time no see, huh? Hope you've been coding up a storm since we last chatted!

The error "ModuleNotFoundError: No module named 'langchain'" indicates that Python cannot find the 'langchain' module in your environment. This could be due to several reasons:

  1. The 'langchain' package is not installed in your Python environment. You can install it using pip or conda, depending on your Python setup.

  2. The 'langchain' package is installed, but it's not in the Python path. Python uses the PYTHONPATH environment variable to determine where to look for modules. If 'langchain' is installed in a location that's not in the PYTHONPATH, Python won't be able to find it.

  3. You're running the script with a different Python interpreter. If you have multiple Python interpreters installed (for example, one for Python 2 and one for Python 3), and 'langchain' is installed for one but not the other, you might get this error if you run the script with the wrong interpreter.

To resolve this issue, you can try the following steps:

  1. Check if 'langchain' is installed. You can do this by running pip list or conda list (depending on your setup) in your command line and looking for 'langchain' in the list of installed packages.

  2. If 'langchain' is not installed, install it by running pip install langchain or conda install langchain.

  3. If 'langchain' is installed but Python can't find it, check your PYTHONPATH. You can do this by running echo $PYTHONPATH in your command line. If the path to 'langchain' is not in the PYTHONPATH, you can add it by running export PYTHONPATH=$PYTHONPATH:/path/to/langchain.

  4. If you have multiple Python interpreters, make sure you're running the script with the one that has 'langchain' installed. You can check which Python interpreter you're using by running which python in your command line.

Please replace /path/to/langchain with the actual path where the 'langchain' module is installed. If you're unsure about the installation path, it's recommended to reinstall the 'langchain' module and carefully note the installation path.

If you're still encountering issues, please provide more information about your Python environment, such as the Python version, the list of installed packages, and the PYTHONPATH. This will help in diagnosing the problem.

For more information, you can refer to these similar issues in the Langchain-Chatchat repository:

I hope this helps! If you have any other questions, feel free to ask.

-Dosu

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#### About Dosu This response is meant to be useful and save you time. It is **not meant to be a precise solution**, but rather a starting point for your own research. Help me be more useful! Please leave a 👍 if this is helpful and 👎 if it is irrelevant. If you want to continue the conversation, start your reply with @dosu-bot.
Belonger commented 9 months ago

==============================Langchain-Chatchat Configuration============================== 操作系统：Linux-5.15.0-94-generic-x86_64-with-glibc2.35. python版本：3.11.7 (main, Dec 15 2023, 18:12:31) [GCC 11.2.0] 项目版本：v0.2.10 langchain版本：0.0.344. fastchat版本：0.2.35

当前使用的分词器：ChineseRecursiveTextSplitter 当前启动的LLM模型：['chatglm3-6b', 'zhipu-api', 'openai-api'] @ cuda {'device': 'cuda', 'host': '0.0.0.0', 'infer_turbo': False, 'model_path': 'THUDM/chatglm3-6b', 'model_path_exists': True, 'port': 20002} {'api_key': '', 'device': 'auto', 'host': '0.0.0.0', 'infer_turbo': False, 'online_api': True, 'port': 21001, 'provider': 'ChatGLMWorker', 'version': 'glm-4', 'worker_class': <class 'server.model_workers.zhipu.ChatGLMWorker'>} {'api_base_url': 'https://api.openai.com/v1', 'api_key': '', 'device': 'auto', 'host': '0.0.0.0', 'infer_turbo': False, 'model_name': 'gpt-4', 'online_api': True, 'openai_proxy': '', 'port': 20002} 当前Embbedings模型： bge-large-zh-v1.5 @ cuda these version

Belonger commented 9 months ago

the python version is 3.11.7

Belonger commented 9 months ago

also solve this problem. only pip install streamlit --upgrade. update streamlit this package!

github-actions[bot] commented 7 months ago

这个问题已经被标记为 stale ，因为它已经超过 30 天没有任何活动。

Chenleader0219 commented 7 months ago

also solved my error!thank u!

Goku17 commented 7 months ago

Problem Description I install langchain this package. but when i run startup.py and in the browser open the address, give me this error.

Steps to Reproduce

  1. in the terminal input python startup.py -a
  2. in the browser input address
  3. give me this error QQ截图20240222103247 i don`t know how to solve this problem, hope you help me, thanks!

问题是怎么解决的呀？ @Chenleader0219