python3/pip3 on centos 6

# 安装 python3.6 和 pip

## prefix

# yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
    # yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel gcc gcc-c++  openssl-devel

## download

#　wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz
    #　wget http://npm.taobao.org/mirrors/python/3.6.5/Python-3.6.5.tgz

## config

```python
./configure --prefix=/usr/local/python3/ --with-ssl
make
make install
```

## soft link pip

# ln -s /usr/local/python3/bin/python3 /usr/bin/python3
    # ln -s /usr/local/python3/bin/pip3 /usr/bin/pip

## env config

# vim /etc/profile

```bash
# User specific environment and startup programs
PATH=$PATH:$HOME/bin:/usr/local/python3/bin
export PATH
```

# source /etc/profile

> 加载国内源

# touch /root/.pip/pip.conf

> 1

```ini
#[global]
#index-url = https://mirrors.aliyun.com/pypi/simple/
#[install]
#trusted-host=mirrors.aliyun.com
[global] 
index-url = https://pypi.tuna.tsinghua.edu.cn/simple 
[install] 
trusted-host=mirrors.aliyun.com
```

---

> 2

```python
[global]
timeout = 10 # 设置超时，单位s
index-url = http://mirrors.aliyun.com/pypi/simple/ # 指定优先下载源
extra-index-url= http://pypi.douban.com/simple/ # 第二下载源
[install]
trusted-host= # 可能需要使用https方式通信
mirrors.aliyun.com
pypi.douban.com
```

---

done