安装requests库提示warning怎么解决

警告不是报错就没事。提示已经存在，你先试试能不能用。

这是已经安装，警告信息是告诉你，一部分相关的依赖包已经存在,如果要替换的话，你在安装requests 添加参数--upgrade。如果运行中出现不正常或库之间兼容问题。尝试重新安装，pip install --upgrade requests

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