Windows上的python pip-命令"cl.exe"失败 [英] python pip on Windows - command 'cl.exe' failed
问题描述
我正在尝试使用pip install spacy安装spaCy，但出现以下错误..
I'm trying to install spaCy using pip install spacy but I'm getting the following error ..
我安装了VS 2015，并且安装了以下Python ..
I have VS 2015 installed, and I have the following Python install ..
3.5.2 |Anaconda 2.5.0 (64-bit)| (default, Jul 5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)]
我尝试了以下SO解决方案，但无济于事.
I tried the following SO solutions to no avail ..
- command cl.exe failed upon pip install django_compressor
- error: command 'cl.exe' failed: No such file or directory
以及其他各种.对于这个特定的库来说，这不是一个唯一的问题，但更普遍的是，任何时候我尝试安装需要C才能在Windows上构建的Python库.
As well as various others. This is not a unique problem to this specific library but more generally anytime I try to install Python libraries that need C to build on Windows.
推荐答案
您需要在计算机和PATH中安装cl.exe(Microsoft C编译器). PATH是一个环境变量，它告诉Windows在哪里找到可执行文件.
You need to have cl.exe (the Microsoft C Compiler) installed on your computer and in your PATH. PATH is an environment variable that tells Windows where to find executable files.
首先，确保安装了用于Visual Studio的 C ++生成工具.您可以从 Visual Studio下载页面单独下载 Visual Studio生成工具. ，然后从安装程序中选择 C ++构建工具.如果您已经拥有Visual Studio，则还可以从Visual Studio安装程序中安装使用C ++进行桌面开发，您应该在开始"菜单中安装该软件.
First, ensure the C++ build tools for Visual Studio are installed. You can download Build Tools for Visual Studio separately from the Visual Studio downloads page, then choose C++ build tools from the installer. If you already have Visual Studio, you can also install Desktop development with C++ from the Visual Studio Installer which you should have in Start Menu.
然后，使用正常菜单中的开始菜单中的特殊命令提示符之一，而不是普通的命令提示符或PowerShell.对于32位Python，您可能正在寻找 x86本机工具命令提示符.这样会自动设置PATH，以便可以找到cl.exe.
Then, instead of the normal Command Prompt or PowerShell, use one of the special command prompts in the Visual Studio folder in Start Menu. For 32-bit Python, you're probably looking for x86 Native Tools Command Prompt. This sets up PATH automatically, so that cl.exe can be found.
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