from urllib import request class Data(): sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf8') # 改变标准输出的默认编码 def __init__(self): #浏览器登录后得到的cookie,也就是刚才复制的字符串 self.cookie_str = r'_ga=GA1.2.497555532.1608957411; _gid=GA1.2.648427415.1608957411; se...
这段代码中,main_generator通过两次yield from调用了sub_generator,将子生成器产生的平方数“合并”到主生成器的输出中。 3.1.2 yield from与嵌套生成器 yield from尤其适用于处理嵌套生成器的情况。在没有yield from的情况下 ,处理嵌套生成器通常需要显式地迭代子生成器并逐个yield其结果 ,这会导致代码冗余且难以...
import requestsfrom langchain.document_loaders import TextLoader url = "https://raw.githubusercontent.com/langchain-ai/langchain/master/docs/docs/modules/state_of_the_union.txt"res = requests.get(url)with open("state_of_the_union.txt", "w") as f: f.write(res.text)loader = TextLoader('...
""" import http.client import string import re import os import sys import xml.etree.ElementTree as etree import stat import logging import traceback import glob import ops import ipaddress from hashlib import sha256 from urllib.request import urlretrieve from urllib.parse import urlparse, urlun...
# obj=json.load(open('罗翔.json','r',encoding='utf-8'))# 注意,这里是文件的形式,不能直接放一个文件名的字符串 file=open('漫画.txt','r',encoding='utf-8')# 注意,这里是文件的形式,不能直接放一个文件名的字符串 obj=json.loads(file.readline())follower=jsonpath.jsonpath(obj,'$..followe...
python 通过 url 下载文件包 data-downloader 将下面代码中的your_username与your_password,改为自己在哨兵官网注册的用户名与密码,并复制到Python编辑器中执行。 fromdata_downloader import downloader netrc=downloader.Netrc() netrc.add('scihub.copernicus.eu','your_username','your_password')...
ConnectorX enables you to load data from databases into Python in the fastest and most memory efficient way. What you need is one line of code: importconnectorxascxcx.read_sql("postgresql://username:password@server:port/database","SELECT * FROM lineitem") ...
语法:urllib.request.urlopen(url, data=None, [timeout, ]*, cafile=None, capath=None, cadefault=False, context=None) 注意:data参数,当给这个参数赋值时,HTTP的请求就使用POST方法,如果data=None或者不写,则使用get方法。 1.1、url库他是python内置的HTTP请求库 ...
import requests from langchain.document_loaders import TextLoader url = "https://raw.githubusercontent.com/langchain-ai/langchain/master/docs/docs/modules/state_of_the_union.txt" res = requests.get(url) with open("state_of_the_union.txt", "w") as f: f.write(res.text) loader = TextLo...
(self,baseurl):self.baseurl=baseurldefget_code(self,fullname):f=urllib2.urlopen(self.get_filename(fullname))returnf.read()defget_data(self):passdefget_filename(self,fullname):returnself.baseurl+fullname+'.py'definstall_meta(address):finder=UrlMetaFinder(address)sys.meta_path.append(...