python – 通过API与Jupyter笔记本交互

问题：我想通过Jupyter API从另一个应用程序与Jupyter交互,特别是我想至少从应用程序运行我的笔记本(对我来说,完美的变体是在运行它之前编辑一些段落).我读过API documentation,但还没找到我需要的东西.

我已经将Apache Zeppelin用于具有相同结构的目的(笔记本和段落).

是否有人使用Jupyter是为了我刚刚描述的目的？

解决方法:

忽略如果使用Jupyter API是解决问题的最佳解决方案(问题中没有明确说明),下面的代码会执行您要求的内容：它将通过http远程执行Jupyter笔记本并获得一些结果.它不是生产准备好的,它更像是如何做到的一个例子.没有用产生大量输出的细胞进行测试 – 认为它需要调整.

您还可以通过更改代码数组以编程方式更改/编辑代码.

您需要根据配置更改notebook_path,base和headers,有关详细信息,请参阅代码.

import json
import requests
import datetime
import uuid
from pprint import pprint
from websocket import create_connection

# The token is written on stdout when you start the notebook
notebook_path = '/Untitled.ipynb'
base = 'http://localhost:9999'
headers = {'Authorization': 'Token 4a72cb6f71e0f05a6aa931a5e0ec70109099ed0c35f1d840'}

url = base + '/api/kernels'
response = requests.post(url,headers=headers)
kernel = json.loads(response.text)

# Load the notebook and get the code of each cell
url = base + '/api/contents' + notebook_path
response = requests.get(url,headers=headers)
file = json.loads(response.text)
code = [ c['source'] for c in file['content']['cells'] if len(c['source'])>0 ]

# Execution request/reply is done on websockets channels
ws = create_connection("ws://localhost:9999/api/kernels/"+kernel["id"]+"/channels",
     header=headers)

def send_execute_request(code):
    msg_type = 'execute_request';
    content = { 'code' : code, 'silent':False }
    hdr = { 'msg_id' : uuid.uuid1().hex, 
        'username': 'test', 
        'session': uuid.uuid1().hex, 
        'data': datetime.datetime.now().isoformat(),
        'msg_type': msg_type,
        'version' : '5.0' }
    msg = { 'header': hdr, 'parent_header': hdr, 
        'metadata': {},
        'content': content }
    return msg

for c in code:
    ws.send(json.dumps(send_execute_request(c)))

# We ignore all the other messages, we just get the code execution output
# (this needs to be improved for production to take into account errors, large cell output, images, etc.)
for i in range(0, len(code)):
    msg_type = '';
    while msg_type != "stream":
        rsp = json.loads(ws.recv())
        msg_type = rsp["msg_type"]
    print(rsp["content"]["text"])

ws.close()

基于此代码的有用链接(如果您想了解更多信息,我建议阅读)：

> https://jupyter-client.readthedocs.io/en/latest/messaging.html#python-api
> https://github.com/jupyter/jupyter/wiki/Jupyter-Notebook-Server-API

请注意,还有https://jupyter-client.readthedocs.io/en/stable/index.html,但据我所知,它不支持HTTP作为传输.

作为参考,这适用于notebook-5.7.4,不确定其他版本.

标签：python,jupyter-notebook,apache-zeppelin,jupyter,remote-access
来源： https://codeday.me/bug/20190827/1745282.html