解决pip install安装非常慢[Errno 101] 网络不可达问题

问题描述

使用pip安装seaborn提示：

 sudo python3.5 -m pip install seaborn

Collecting seaborn

  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fb25d444fd0>: Failed to establish a new connection: [Errno 101] 网络不可达',)': /packages/a8/76/220ba4420459d9c4c9c9587c6ce607bf56c25b3d3d2de62056efe482dadc/seaborn-0.9.0-py3-none-any.whl

尝试加入default-time=100这个参数，提示：

sudo python3.5 -m pip --default-time=100 install seaborn

Collecting seaborn
  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out. (read timeout=100.0)",)': /packages/a8/76/220ba4420459d9c4c9c9587c6ce607bf56c25b3d3d2de62056efe482dadc/seaborn-0.9.0-py3-none-any.whl

等了半天还是安装不了

解决方法

在pip后面加入-i参数，比如：-i https://pypi.tuna.tsinghua.edu.cn/simple

sudo python3.5 -m pip --default-time=100 install seaborn -i https://pypi.tuna.tsinghua.edu.cn/simple

下载的飞快～

据说可以一劳永逸的方法，但我还没试过，过程如下：

mkdir ~/.pip
cd ~/.pip
touch pip.conf
gedit pip.conf

[global]
index-url = http://pypi.douban.com/simple
[install]
trusted-host = pypi.douban.com

cat pip.conf