Biu
A tiny web crawler framework
Features
- 请使用 Python3.10 或更高版本
- 并发基于 Gevent,因此你必须在脚本一开始
import biu,或者自行 monkey patch - 请求基于 Requests,请求与请求结果的参数与 Requests 基本兼容
- 页面解析基于 Parsel, 因此使用方法与 Scrapy 一致
- 基本是一个缩水版的 Scrapy,用法与之非常类似
- 更多高级功能请面向源代码编程,自行发掘
Installation
pip install biu
Example
import biu ## Must be the first line, because of monkey-included.
class MySpider(biu.Project):
def start_requests(self):
for i in range(0, 301, 30):
# return 或者 yield 一个 biu.Request 就会去访问一个页面,参数与 requests 的那个基本上是兼容的
yield biu.Request(url="https://www.douban.com/group/explore/tech?start={}".format(i),
method="GET",
headers={"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36"},
callback=self.parse)
def parse(self, resp):
## biu.Response 和 requests 的那个差不多,加了几个选择器上去
for item in resp.xpath('//*[@id="content"]/div/div[1]/div[1]/div'):
yield {
"title": item.xpath("div[2]/h3/a/text()").extract_first(),
"url": item.xpath("div[2]/h3/a/@href").extract_first(),
"abstract": item.css("p::text").extract_first()
}
# return 或者 yield 一个 dict, 就会当作结果传到result_handler里进行处理
def result_handler(self, rv):
print("get result:", rv)
# 在这把你的结果存了
biu.run(MySpider(concurrent=3, interval=0.2, max_retry=5))
Metadata
Release files for biu 0.3.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| biu-0.3.0.tar.gz | 40.8 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| biu-0.3.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 45.9 kB
Release files / biu-0.3.0.tar.gz
| Download URL | biu-0.3.0.tar.gz |
|---|---|
| Size | 40.8 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
648194a51dd01a460132ef23472fbfd99d47d6f7a2b2eb5ba7e97526790f5827
|
|
BLAKE2b-256 checksum How to use checksums |
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
python-httpx/0.27.2
|
Release files / biu-0.3.0-py3-none-any.whl
| Download URL | biu-0.3.0-py3-none-any.whl |
|---|---|
| Size | 5.1 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
06786383a682722908e395d2c9644009fd3876d53c91a2d755cd32075c61efe3
|
|
BLAKE2b-256 checksum How to use checksums |
634e7ebab624a0fdf293fcc7dc471af09ce44055af5d578e92d34a2abe104cf6
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
python-httpx/0.27.2
|