新增 poetry 包管理工具

[kipyin]

该 PR 包括

• 新增 poetry 包管理工具 官网 | Github

添加理由

用 poetry 管理包可以完全替代 setup.py，并且一切操作均可在命令行完成：

添加依赖：

$ poetry add requets
Using version ^2.21 for requests

Updating dependencies
Resolving dependencies... (5.0s)

Package operations: 5 installs, 0 updates, 0 removals

Writing lock file

  - Installing certifi (2018.11.29)
  - Installing chardet (3.0.4)
  - Installing idna (2.8)
  - Installing urllib3 (1.24.1)
  - Installing requests (2.21.0)

添加开发环境依赖：

$ poetry add -D pytest=^4.0
Using version ^4.0 for pytest

Updating dependencies
Resolving dependencies... (2.2s)

Package operations: 0 installs, 1 update, 0 removals

Writing lock file

  - Updating six (1.11.0 -> 1.12.0)

安装所有依赖：

$ poetry install

用树状图显示当前项目所有依赖：

$ poetry show --tree
pytest 4.0.1 pytest: simple powerful testing with Python
├── atomicwrites >=1.0
├── attrs >=17.4.0
├── colorama *
├── more-itertools >=4.0.0
│   └── six >=1.0.0,<2.0.0
├── pluggy >=0.7
├── py >=1.5.0
├── setuptools *
└── six >=1.10.0
requests 2.21.0 Python HTTP for Humans.
├── certifi >=2017.4.17
├── chardet >=3.0.2,<3.1.0
├── idna >=2.5,<2.9
└── urllib3 >=1.21.1,<1.25

一键打包：

$ poetry build

一键发布到 PyPI：

$ poetry publish

[tangyouhua]

感谢提交:)