[root@iZj6c39y62jl5b1wmfv6u8Z ~]# yum install python34-pip

[root@iZj6c39y62jl5b1wmfv6u8Z ~]# pip3 install --upgrade pip
Collecting pip
  Downloading http://mirrors.aliyun.com/pypi/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl (1.3MB)
    100% |████████████████████████████████| 1.3MB 68.9MB/s 
Installing collected packages: pip
  Found existing installation: pip 8.1.2
    Uninstalling pip-8.1.2:
      Successfully uninstalled pip-8.1.2
Successfully installed pip-10.0.1
			
			

			
python3.6 -m venv env --without-pip
source env/bin/activate
curl https://bootstrap.pypa.io/get-pip.py | python3
python3.6 -m pip install web3			
			
			

首先去 python.org 官网下载 Python 3.6.5 dmg格式，安装后进入终端。

			
You should consider upgrading via the 'pip install --upgrade pip' command.
neo@MacBook-Pro ~/ethereum/web3.py % pip3.6 install --upgrade pip
Cache entry deserialization failed, entry ignored
Collecting pip
  Using cached https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl
Installing collected packages: pip
  Found existing installation: pip 9.0.3
    Uninstalling pip-9.0.3:
      Successfully uninstalled pip-9.0.3
Successfully installed pip-10.0.1
			
neo@MacBook-Pro ~/ethereum/web3.py % pip3.6 install web3