print(response1.read()）

为什么在在后面加入decode（），报出错误

print(response1.read().decode())

老师，按视频中配置打开mongo.exe后如下，然后会闪退，怎么回事，有影响吗

老师 这个import为什么是无效的呢？

我这是怎么回事？

我为什么把SwitchyOmega一拖进来就提示程序包无效

用crawlspider爬小说怎么停下来，爬取到最后一章时提取的下一章的url指向了目录页面，这样又会匹配到写的第一个rule了，又会从第一章开始爬了

老师，我这个又又出问题了。。。我看网上说是我请求太过于频繁，但是我这边设置了请求频率还是不行啊

如何才能出现这个菜单栏上面的是我的没有

。。。。。。。。。

pycharm环境下卸载后安装就会提示错误：

PS D:\scrapytest> pip install cryptography==36.0.2

Collecting cryptography==36.0.2

  Using cached cryptography-36.0.2-cp36-abi3-win_amd64.whl (2.2 MB)

Requirement already satisfied: cffi>=1.12 in d:\scrapytest\venv\lib\site-packages (from cryptography==36.0.2) (1.15.1)

Requirement already satisfied: pycparser in d:\scrapytest\venv\lib\site-packages (from cffi>=1.12->cryptography==36.0.2) (2.21)

Installing collected packages: cryptography

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency

 conflicts.

pyopenssl 22.1.0 requires cryptography<39,>=38.0.0, but you have cryptography 36.0.2 which is incompatible.

Successfully installed cryptography-36.0.2

虽然提示完成安装但运行起来提示错误：

Traceback (most recent call last):

  File "D:/scrapytest/webtest/scrapy03/scrapy03/begin_脚本启动scrapy.py", line 10, in <module>

    from scrapy.cmdline import execute

  File "D:\scrapytest\venv\lib\site-packages\scrapy\__init__.py", line 12, in <module>

    from scrapy.spiders import Spider

  File "D:\scrapytest\venv\lib\site-packages\scrapy\spiders\__init__.py", line 93, in <module>

    from scrapy.spiders.crawl import CrawlSpider, Rule

  File "D:\scrapytest\venv\lib\site-packages\scrapy\spiders\crawl.py", line 15, in <module>

    from scrapy.utils.spider import iterate_spider_output

  File "D:\scrapytest\venv\lib\site-packages\scrapy\utils\spider.py", line 5, in <module>

    from scrapy.utils.defer import deferred_from_coro

  File "D:\scrapytest\venv\lib\site-packages\scrapy\utils\defer.py", line 29, in <module>

    from scrapy.utils.reactor import is_asyncio_reactor_installed, get_asyncio_event_loop_policy

  File "D:\scrapytest\venv\lib\site-packages\scrapy\utils\reactor.py", line 5, in <module>

    from twisted.internet import asyncioreactor, error

  File "D:\scrapytest\venv\lib\site-packages\twisted\internet\asyncioreactor.py", line 19, in <module>

    from twisted.internet.posixbase import (

  File "D:\scrapytest\venv\lib\site-packages\twisted\internet\posixbase.py", line 16, in <module>

    from twisted.internet import error, tcp, udp

  File "D:\scrapytest\venv\lib\site-packages\twisted\internet\tcp.py", line 38, in <module>

    from twisted.internet._newtls import (

  File "D:\scrapytest\venv\lib\site-packages\twisted\internet\_newtls.py", line 18, in <module>

    from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol

  File "D:\scrapytest\venv\lib\site-packages\twisted\protocols\tls.py", line 42, in <module>

    from OpenSSL.SSL import Connection, Error, SysCallError, WantReadError, ZeroReturnError

  File "D:\scrapytest\venv\lib\site-packages\OpenSSL\__init__.py", line 8, in <module>

    from OpenSSL import SSL, crypto

  File "D:\scrapytest\venv\lib\site-packages\OpenSSL\SSL.py", line 19, in <module>

    from OpenSSL.crypto import (

  File "D:\scrapytest\venv\lib\site-packages\OpenSSL\crypto.py", line 3224, in <module>

    utils.deprecated(

TypeError: deprecated() got an unexpected keyword argument 'name'

请问这个该怎么解决？

会爬，按老师这个深度优先，获取每一页房屋url后，先遍历房屋列表发送请求，然后再发送下一页请求，继续获取房屋列表，个人理解

为什么我的运行不出来呢，是哪里有问题吗

老师  爬虫工程师需要掌握哪些东西，这个方面的工作

百度拒绝访问 是不是端口地址被屏蔽了

为什么抓不到pycharm的包，其他浏览器什么都可以