Python 如何用 Mistune 將 Markdown (md)轉成 AST (Abstract Syntax Tree , 抽象語法樹)並匯出成 JSON; markdown = mistune.create_markdown( renderer=’ast’ )

by 儲蓄保險王 · 2025-07-17

想過把 Markdown 文件自動拆解成結構化資料，方便進行分析或轉換嗎？這篇教學會帶你用 mistune 這個輕量級解析器，把 Markdown 轉成 AST（抽象語法樹），再輸出為 JSON 格式，方便後續自動化處理！

步驟簡介

安裝 mistune
準備 Markdown 檔案
撰寫 Python 程式，解析並輸出 JSON
檢視結果

1. 安裝 mistune

在終端機輸入：

pip install mistune

pip install mistune

2. 準備 Markdown 檔案

建立一個 sample.md，內容如: sample.md

sample.md 若使用記事本開啟的話:

# Title H1

## Subtitle H2

### Subtitle H3

#### Subtitle H4

##### Subtitle H5

###### Subtitle H6

**Bold Text**

*Italic Text*

~~Strikethrough~~

`Inline code`

[Link text](https://example.com)

![Alt text](https://example.com/image.png)

> Blockquote

- Unordered list item 1
- Unordered list item 2
  - Nested unordered item
* Another bullet

1. Ordered list item 1
2. Ordered list item 2
   1. Nested ordered item

---

Horizontal rule above

```python
# Code block
print("Hello, world!")

# Title H1

## Subtitle H2

### Subtitle H3

#### Subtitle H4

##### Subtitle H5

###### Subtitle H6

**Bold Text**

*Italic Text*

~~Strikethrough~~

`Inline code`

[Link text](https://example.com)

![Alt text](https://example.com/image.png)

> Blockquote

- Unordered list item 1
- Unordered list item 2
  - Nested unordered item
* Another bullet

1. Ordered list item 1
2. Ordered list item 2
   1. Nested ordered item

---

Horizontal rule above

```python
# Code block
print("Hello, world!")

sample.md 若使用cursor開啟的話:

Python 如何用 Mistune 將 Markdown (md)轉成 AST (Abstract Syntax Tree , 抽象語法樹)並匯出成 JSON; markdown = mistune.create_markdown( renderer='ast' ) - 儲蓄保險王

3. Python 解析程式

將以下程式存成 md2json.py（或其他你喜歡的名字）：

import mistune
import os
import json

dir_py = os.path.dirname(os.path.abspath(__file__))
dir_ex = os.path.join(dir_py, 'export')
os.makedirs(dir_ex, exist_ok=True)
basename_md = 'sample.md'
path_ex = os.path.join(dir_ex, basename_md.replace('.md', '.json'))

with open(basename_md, encoding='utf-8') as f:
    md_content:str = f.read()

markdown = mistune.create_markdown(renderer='ast')
#mistune.markdown.Markdown
ast:list[dict]  = markdown(md_content)

with open(path_ex, 'w', encoding='utf-8') as f:
    json.dump(ast, f, ensure_ascii=False, indent=4)

print(f'exported to {path_ex}'  )

import mistune
import os
import json

dir_py = os.path.dirname(os.path.abspath(__file__))
dir_ex = os.path.join(dir_py, 'export')
os.makedirs(dir_ex, exist_ok=True)
basename_md = 'sample.md'
path_ex = os.path.join(dir_ex, basename_md.replace('.md', '.json'))

with open(basename_md, encoding='utf-8') as f:
    md_content:str = f.read()

markdown = mistune.create_markdown(renderer='ast')
#mistune.markdown.Markdown
ast:list[dict]  = markdown(md_content)

with open(path_ex, 'w', encoding='utf-8') as f:
    json.dump(ast, f, ensure_ascii=False, indent=4)

print(f'exported to {path_ex}'  )