无法导入 Python 模块，因为“sys.path”和“sys.executable”存在差异

Question

I'm install "Jupyter notebook" and also have "Jupyter notebook in Visual Studio Code" When I run "pip3 install some_module" then it can import in "Jupyter notebook in Visual Studio Code" BUT CAN'T in "Jupyter notebook" I relize that in "Jupyter notebook in Visual Studio Code" sys.executable = /usr/bin/python3 But in "Jupyter notebook" sys.executable = /home/binh/.local/my_project_env/bin/python3

Answer 1

When working with Jupyter notebooks , it makes sense having Python virtual environments containing just the modules that you need. This provides a guarantee that the notebook running on the particular versions of Python modules you have installed, will always run correctly if those modules in those versions are present.

From the sys.executable paths you provided, it seems like you have multiple versions of Python installed. When you run "pip3 install <some_module>" , you are only installing that module to the system-wide Python installation , unless you are within a Python virtual environment. With that said, there are 2 possible solutions to your problem:

1. The most recommended would be to create a virtual environment as explained in detail here .

2. Alternatively, you could also set the Jupyter Notebook's sys.executable path to point to the system-wide Python installation by simply changing the path to your local /usr/bin/python3 . However, this is not recommended.