jupyter

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Jupyter Notebook Guide

Jupyter Notebook 指南

Notebooks are JSON files. Cells are in

nb['cells']

, each has

source

(list of strings) and

cell_type

('code', 'markdown', or 'raw').

Notebook 是JSON文件。单元格存储在

nb['cells']

中，每个单元格包含

source

（字符串列表）和

cell_type

（取值为'code'、'markdown'或'raw'）。

Modifying Notebooks

修改Notebook

python

import json
with open('notebook.ipynb') as f:
    nb = json.load(f)

python

import json
with open('notebook.ipynb') as f:
    nb = json.load(f)

Modify nb['cells'][i]['source'], then:

with open('notebook.ipynb', 'w') as f: json.dump(nb, f, indent=1)

undefined

with open('notebook.ipynb', 'w') as f: json.dump(nb, f, indent=1)

undefined

Executing & Converting

执行与转换

bash

jupyter nbconvert --to notebook --execute --inplace notebook.ipynb  # Execute in place
jupyter nbconvert --to html notebook.ipynb      # Convert to HTML
jupyter nbconvert --to script notebook.ipynb    # Convert to Python
jupyter nbconvert --to markdown notebook.ipynb  # Convert to Markdown

bash

jupyter nbconvert --to notebook --execute --inplace notebook.ipynb  # Execute in place
jupyter nbconvert --to html notebook.ipynb      # Convert to HTML
jupyter nbconvert --to script notebook.ipynb    # Convert to Python
jupyter nbconvert --to markdown notebook.ipynb  # Convert to Markdown

Finding Code

查找代码

bash

grep -n "search_term" notebook.ipynb

bash

grep -n "search_term" notebook.ipynb

Cell Structure

单元格结构

python

undefined

python

undefined

Code cell

{"cell_type": "code", "execution_count": None, "metadata": {}, "outputs": [], "source": ["code\n"]}

Markdown cell

{"cell_type": "markdown", "metadata": {}, "source": ["# Title\n"]}

undefined

{"cell_type": "markdown", "metadata": {}, "source": ["# Title\n"]}

undefined

Clear Outputs

清除输出

python

for cell in nb['cells']:
    if cell['cell_type'] == 'code':
        cell['outputs'] = []
        cell['execution_count'] = None

python

for cell in nb['cells']:
    if cell['cell_type'] == 'code':
        cell['outputs'] = []
        cell['execution_count'] = None