linux - ubuntu16.04安装python的requests模块失败，怎么解决？

问题描述

问 题

最近在尝试用python写爬虫，需要用到requests模块，却安装不上。
系统ubuntu16.04, 使用系统默认的python2.7. 运行python代码时，报错：
p@G :~/Desktop$ sudo apt-get install python-requests
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies.
bcloud : Depends: python3-crypto but it is not going to be installed

      Depends: python3-pyinotify but it is not going to be installed
      Depends: python3-keyring but it is not going to be installed

python-requests : Depends: python-urllib3 (>= 1.13.1) but it is not going to be installed

               Depends: python-chardet but it is not going to be installed
               Depends: python-urllib3 (< 1.13.2) but it is not going to be installed

E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

尝试更新软件源，未解决。
尝试安装python3-crypto等模块，未解决。
百度说，可能是PPA版本问题，但未安装和删除过PPA.
这是什么问题？
Any help will be welcomed!!

解决方案

Ubuntu是基于 Debian 的发行版，请用好apt-get(从14.04起，新的更新中就可以直接使用 apt 了)，还有，注意看提示，让你先修复依赖关系。

1. 请先执行apt-get -f install 修正(依赖关系)破损的软件包

2. python的requests包是有PPA源的，直接使用apt安装即可 apt-get install python-requests

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