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关于Could not find a version that satisfies the requirement报错的解决方案

在使用python的pip命令安装各类package时,命令运行后会分3次返回警告类信息:Retrying(Retry(total=4,connect=None,read=None,redirect=None))afterconnectionbrokenby'ConnectTimeoutError(connection.VerifiedHTTPSConnectionobjectat0x00000218CA6213C8>,'Connectiontopypi.python.orgtimedout.(connecttimeout=15)')'如图:最终会产生红色字体报错:Couldnotfindav

关于Could not find a version that satisfies the requirement报错的解决方案

在使用python的pip命令安装各类package时,命令运行后会分3次返回警告类信息:Retrying(Retry(total=4,connect=None,read=None,redirect=None))afterconnectionbrokenby'ConnectTimeoutError(connection.VerifiedHTTPSConnectionobjectat0x00000218CA6213C8>,'Connectiontopypi.python.orgtimedout.(connecttimeout=15)')'如图:最终会产生红色字体报错:Couldnotfindav

pip报错ERROR: Could not find a version that satisfies the requirement pandas (from versions: none)

下载pandas报错如下:pipinstallpandasERROR:Couldnotfindaversionthatsatisfiestherequirementpandas(fromversions:none)ERROR:Nomatchingdistributionfoundforpandas解决方法: 在语句后面加上其他源,我这里用的清华源pipinstallpandas-ihttps://pypi.tuna.tsinghua.edu.cn/simple/然后成功:!!! ps:国内常用镜像源清华大学:https://pypi.tuna.tsinghua.edu.cn/simple/阿里

pip报错ERROR: Could not find a version that satisfies the requirement pandas (from versions: none)

下载pandas报错如下:pipinstallpandasERROR:Couldnotfindaversionthatsatisfiestherequirementpandas(fromversions:none)ERROR:Nomatchingdistributionfoundforpandas解决方法: 在语句后面加上其他源,我这里用的清华源pipinstallpandas-ihttps://pypi.tuna.tsinghua.edu.cn/simple/然后成功:!!! ps:国内常用镜像源清华大学:https://pypi.tuna.tsinghua.edu.cn/simple/阿里