使用特定的virtualenv在Jupyter Notebook中执行Python脚本 [英] Execute Python script within Jupyter notebook using a specific virtualenv

问题描述

我想从Jupyter笔记本中执行长时间运行的Python脚本，以便对运行中生成的数据结构进行黑客攻击.

I would like to execute a long running Python script from within a Jupyter notebook so that I can hack on the data structures generated mid-run.

该脚本具有许多依赖性和命令行参数，并使用特定的virtualenv执行.是否可以从指定的virtualenv(不同于Jupyter安装的环境)在笔记本中交互运行Python脚本?

The script has many dependencies and command line arguments and is executed with a specific virtualenv. Is it possible to interactively run a Python script inside a notebook from a specified virtualenv (different to that of the Jupyter installation)?

谢谢！

推荐答案

以下是对我有用的内容(非conda python): (MacOS，brew版本的python.如果您使用的是系统python，则可能(需要)在每个命令前加上sudo)

Here's what worked for me (non conda python): (MacOS, brew version of python. if you are working with system python, you may (will) need prepend each command with sudo)

首先激活virtualenv

first activate virtualenv

例如，如果重新开始，则可以使用virtualenvwrapper

if starting afresh then, e.g., you could use virtualenvwrapper

$pip install virtualenvwrapper
$mkvirtualenv -p python2 py2env 
$workon py2env

# This will activate virtualenv

(py2env)$ 

# Then install jupyter within the active virtualenv
(py2env)$ pip install jupyter

# jupyter comes with ipykernel, but somehow you manage to get an error due to ipykernel, then for reference ipykernel package can be installed using:
(py2env)$ pip install ipykernel

下一步，设置内核

(py2env)$ python -m ipykernel install --user --name py2env --display-name "Python2 (py2env)"

然后启动jupyter笔记本(此步骤无需激活venv)

then start jupyter notebook (the venv need not be activated for this step)

(py2env)$ jupyter notebook
# or
#$ jupyter notebook

在jupyter笔记本下拉菜单中:Kernel >> Change Kernel >> <list of kernels>，您应该看到Python2 (py2env)内核

in the jupyter notebook dropdown menu: Kernel >> Change Kernel >> <list of kernels> you should see Python2 (py2env) kernel

这也使识别内核的python版本和并排维护它们变得容易.

This also makes it easy to identify python version of kernel, and maintain either side by side.

这是详细文档的链接 http://ipython.readthedocs.io/en/stable/install/kernel_install.html

here is the link to detail docs http://ipython.readthedocs.io/en/stable/install/kernel_install.html

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