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…

python环境:python 3.8 报错信息: WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.Collecting pip3  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after…

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…

pip install win32api pip install pywin32 都会提示错误,如下: Could not find a version that satisfies the requirement win32api (from versions: ) No matching distribution found for win32api 改为 pip install pypiwin32 成功解决.…

安装xml库发生报错 pip3 install xml Collecting xml Could not find a version that satisfies the requirement xml (from versions: ) No matching distribution found for xml 尝试安装lxml进行代替 root@5a968be9a4aa:/home/ubuntu/publisher_info# pip3 install lxml Collecting l…

今天用pip安装skimage时报错: 这是因为网络的问题,需要使用国内的镜像源来加速,比如豆瓣源 命令改为: pip install scikit-image -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com 或者 pip3 install scikit-image -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com 最后成功安装:…

一.环境使用python3.7时,用pip安装openpyxl出现如下错误: 系统环境:windows10家庭版Python版本:python3.7.1IDE:sublime_text 3二. 解决方案按照提示所示是其中一个原因是pip版本过低,需要更新pip:python -m pip install --upgrade pip由于python国内网络不稳定,一直报错,升级了很多次才成功.然后继续还是报错: 可能考虑到是python国内网络的问题,这时我们用国内的镜像源来加速.pip inst…

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…

不多说,直接上干货! 问题详情 这个问题,很普遍.如我这里想实现,Windows下Anaconda2 / Anaconda3里正确下载安装用来向微信好友发送消息的itchat库. 见,我撰写的 全网最全的Windows下Anaconda2 / Anaconda3里正确下载安装用来向微信好友发送消息的itchat库(图文详解) 出现: PS C:\Anaconda3\Scripts> pip3.exe install itchat Collecting itchat Could not find…