安装 scrapy 0.22 时出错(在 Ubuntu 12.04 上):'gcc' 失败，退出状态为 1 [英] Error installing scrapy 0.22 (on Ubuntu 12.04): 'gcc' failed with exit status 1

问题描述

尝试使用 pip 从命令行安装 Scrapy 时
sudo pip install scrapy
我收到以下错误:
错误:命令gcc"失败，退出状态为 1

When trying to install Scrapy from the command line using pip
sudo pip install scrapy
I get the following error:
error: command 'gcc' failed with exit status 1

查看错误输出中的几行，我发现在尝试安装似乎是 pyOpenSSL 依赖项的cryptography"包时发生错误

Looking a few lines up in the error output, I see that the error occurs while trying to install the 'cryptography' package which seems to be a dependency of pyOpenSSL

我尝试单独安装 pyOpenSSL，但它给出了相同的错误.通读错误输出，我发现此错误的可能原因是缺少文件:

I tried installing pyOpenSSL on its own and it gives the same error. Reading through the error output, I find that the likely cause of this error is a missing file:

ffi.h:没有那个文件或目录

我应该如何从这里开始?

How should I proceed from here?

推荐答案

尝试

sudo apt-get install libffi libffi-dev

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