解决Python安装包时提示Unable to find vcvarsall.bat的问题   by:授客 QQ:1033553122 问题 Python安装包时,提示Unable to find vcvarsall.bat,如下 解决方法 安装MinGW,安装完成后,设置环境变量,把 $install_dir\bin添加到path中,比如MinGW安装在C:\MinGW,则把C:\MinGW\bin添加到path中 MinGW下载地址:https://sourceforge.net/proje…

pip install mysql-connector-python-rf==2.2.2 安装包的时候提示错误信息:error:option--single-version-externally-managednotrecognized 原因可能是你的安装包是wheel格式的安装包,如果你的电脑上没有安装wheel的话就会报这个错误. 我自己是这么解决的:首先安装wheel: pip install wheel 然后再用pip安装我想要包: pip install mysql-connector…

安装了两个版本的python 其中一个版本为2.7 专门为python 2.7安装包使用的语句为 升级pip E:\Python27\python -m pip install --upgrade pip 安装robotramework E:\Python27\Scripts\pip install -U wxpython E:\Python27\Scripts\pip install robotframework E:\Python27\Scripts\pip install robotfra…

为什么提示找不到? 电脑安装了LoadRunnder,LoadRunner也有pip.exe,导致找不到python的exe 解决方法: 切换到python pip的路径进行安装,进到这个路径下,进行安装 参考:https://blog.csdn.net/weixin_43571931/article/details/106410245…

用64位windows10的CMD命令安装pip install scrapy出错: Running setup.py bdist_wheel for Twisted ... error Failed building wheel for Twisted Running setup.py clean for Twisted Failed to build Twisted Installing collected packages: pycparser, cffi, asn1crypto, cry…

https://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml Python安装scrapy库过程中出现“ Failed building wheel for xxx”的解决办法: 出现原因:缺失相应的whl文件. 解决办法:下载并安装对应的whl文件. 1.如何下载对应的whl文件:     点击下方链接,即可找到并下载相对应的whl文件:     Unofficial Windows Binaries for Python Extension Package…

python安装包出现的两个问题 error: Unable to find vcvarsall.bat No module named Crypto.Cipher error: Unable to find vcvarsall.bat 解决方法 一.对于python2 请下载Microsoft Visual C++ Compiler for Python 2.7安装即可解决问题 二.对于python3 1.查看自己的python版本,对照下表安装相应的 Visual Studio 查看pyth…

2019独角兽企业重金招聘Python工程师标准>>> 当我使用 pip instlal cytoolz 时,  报以下错误: error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": https://visualstudio.microsoft.com/downloads/ --------------------------------…

unbuntu 16.04 运行 pip install jupyter --upgrade 的时候出现了下面的错误 Failed building wheel for scandir Running setup.py clean for scandirFailed to build scandirInstalling collected packages: scandir, pathlib2, simplegeneric, pickleshare, ipython, Send2Trash, b…

localhost:~ jerry$ Processing /var/www/git/python/tesserocr -bash: Processing: command not found localhost:~ jerry$ pip3 install tesserocr Collecting tesserocr Using cached https://files.pythonhosted.org/packages/f8/6d/4e81e041f33a4419e59edcb1dbdf3c5…