出现多次使用pip安装包时提示以下报错: ERROR: Could not find a version that satisfies the requirement <package> (from versions: none)ERROR: No matching distribution found for <package> 看提示信息说是木有匹配的包版本,那既然这样就制定安装的Python的三方包的版本,但是也不行,那说明可能不是包版本问题. 网上查了下说有可能是网络问题,…
前言 我在使用pip install opencv-python 时报错 Could not find a version that satisfies the requirement opencv (from versions: ) No matching distribution found for opencv 树莓派的镜像是默认装的镜像,没怎么装过其他东西的.我查看了python的版本,python是2.7版本的,树莓派镜像默认是装好了python2.分析原因,python2版本过久,无…
今天在Windows下通过Pycharm安装Tensorflow时遇到两个问题: 使用pip安装其实原理都相同,只不过Pycharm是图形化的过程! 1.由于使用国外源总是导致Timeout 解决方法是在Pycharm中添加清华源 https://mirrors.aliyun.com/pypi/simple/(或者其他的国内源) 2.替换成清华源后安装报错: ERROR: Could not find a version that satisfies the requirement tensor…
使用pip安装pymysql出错;Could not find a version that satisfies the requirement cryptography (from pymysql) (from versions: ) No matching distribution found for cryptography (from pymysql) 今天使用pip安装pymysql时出现如下错误: Could not find a version that satisfies the…
今天使用pip安装pymysql时出现如下错误: Could not find a version that satisfies the requirement cryptography (from pymysql) (from versions: )No matching distribution found for cryptography (from pymysql) 使用pip安装其他模块时也可能出现上述错误,主要原因是网络的问题,需要使用国内的镜像源来加速,比如豆瓣源 因此命令可以使用…