Requirement already satisfied: backports.lzma in ./PyEnv/py-frcnn/lib/python3.8/site-packages (0.0.14)

如果您已经安装了`backports.lzma`模块，但仍然出现了`ModuleNotFoundError: No module named '_lzma'`错误，那么可能是因为您使用的Python版本太老，不支持LZMA压缩算法。您可以尝试升级您的Python版本，或者使用其他支持LZMA的Python版本。另外，您也可以尝试使用其他的压缩算法，比如gzip或bz2，来代替LZMA。

相关问题

Looking in indexes: https://repo.huaweicloud.com/repository/pypi/simple Requirement already satisfied: PCV in ./miniconda3/lib/python3.8/site-packages (0.0.2) Requirement already satisfied: jinja2 in ./miniconda3/lib/python3.8/site-packages (from PCV) (3.1.2) Requirement already satisfied: MarkupSafe>=2.0 in ./miniconda3/lib/python3.8/site-packages (from jinja2->PCV) (2.1.2)

这段提示信息显示你已经安装了PCV，版本号为0.0.2，并且依赖的Jinja2和MarkupSafe库也已经安装好了。这意味着你可以在代码中使用PCV库了。

如果你想检查库是否安装成功，可以在Python交互式环境中输入以下命令：

import PCV

如果没有报错，说明库已经成功安装。你可以继续阅读PCV的文档，学习如何使用这个库。

!pip install requests !pip install beautifulsoup4 Requirement already satisfied: requests in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (2.28.1) Requirement already satisfied: urllib3<1.27,>=1.21.1 in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (from requests) (1.26.11) Requirement already satisfied: charset-normalizer<3,>=2 in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (from requests) (2.0.4) Requirement already satisfied: idna<4,>=2.5 in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (from requests) (3.3) Requirement already satisfied: certifi>=2017.4.17 in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (from requests) (2022.9.24) Requirement already satisfied: beautifulsoup4 in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (4.11.1) Requirement already satisfied: soupsieve>1.2 in /Users/huyang/opt/anaconda3/lib/python3.9/site-packages (from beautifulsoup4) (2.3.1)

看起来您已经成功安装了 requests 和 BeautifulSoup 库。这两个库是 Python 中非常常用的网络请求和解析库，非常适合用于爬虫和数据分析等任务。如果您想要使用这些库，可以在 Python 代码中导入它们，例如：

import requests
from bs4 import BeautifulSoup

这样，您就可以在 Python 代码中使用 requests 和 BeautifulSoup 库了。如果您在 Spyder 中遇到任何问题，可以随时向我提问。