pipenv 方便的python 开发工作流工具
pipenv 将 composer、bundler、npm、yarn、cargo 等比较方便的包管理工具添加到了python 语言中，可以帮助我们自动的管理virtualenv ，同时可以方便的从pipefile 中添加或者移除包
pipenv 解决的问题
- 我们不用在独立的使用pip 以及virualenv ，他们已经可以一起工作了
- 使用requirements.txt 方式管理包是有问题的，因此pipenv 使用pipefile 以及pipefile.lock
- 提供便捷的依赖图（通过 pipenv graph）
- 可以高效的加载.env 文件，方便快发
一个基本使用
- 安装
brew install pipenv- 初始化一个项目
python3 环境
pipenv --python 3.7效果
Creating a virtualenv for this project…
Pipfile: /Users/dalong/mylearning/pipenv-project/Pipfile
Using /usr/local/bin/python3 (3.7.2) to create virtualenv…
⠧ Creating virtual environment...Using base prefix '/usr/local/Cellar/python/3.7.2_1/Frameworks/Python.framework/Versions/3.7'
New python executable in /Users/dalong/.local/share/virtualenvs/pipenv-project-iZJiWFj1/bin/python3.7
Also creating executable in /Users/dalong/.local/share/virtualenvs/pipenv-project-iZJiWFj1/bin/python
Installing setuptools, pip, wheel...
done.
Running virtualenv with interpreter /usr/local/bin/python3
✔ Successfully created virtual environment!
Virtualenv location: /Users/dalong/.local/share/virtualenvs/pipenv-project-iZJiWFj1
Creating a Pipfile for this project…- 添加依赖
tap-mysql
pipenv install tap-mysql效果
Installing tap-mysql…
Adding tap-mysql to Pipfile's [packages]…
✔ Installation Succeeded
Pipfile.lock not found, creating…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✔ Success!
Updated Pipfile.lock (430178)!
Installing dependencies from Pipfile.lock (430178)…
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To activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.- 运行安装的tap
pipenv run tap-mysql- 依赖图
pipenv graph
tap-mysql==1.10.0
- attrs [required: ==16.3.0, installed: 16.3.0]
- backoff [required: ==1.3.2, installed: 1.3.2]
- mysql-replication [required: ==0.18, installed: 0.18]
- pymysql [required: Any, installed: 0.7.11]
- pendulum [required: ==1.2.0, installed: 1.2.0]
- python-dateutil [required: Any, installed: 2.7.5]
- six [required: >=1.5, installed: 1.12.0]
- pytzdata [required: Any, installed: 2018.7]
- tzlocal [required: Any, installed: 1.5.1]
- pytz [required: Any, installed: 2018.4]
- PyMySQL [required: ==0.7.11, installed: 0.7.11]
- singer-python [required: ==5.3.1, installed: 5.3.1]
- backoff [required: ==1.3.2, installed: 1.3.2]
- jsonschema [required: ==2.6.0, installed: 2.6.0]
- python-dateutil [required: >=2.6.0, installed: 2.7.5]
- six [required: >=1.5, installed: 1.12.0]
- pytz [required: ==2018.4, installed: 2018.4]
- simplejson [required: ==3.11.1, installed: 3.11.1]说明
pipenv 工具还是很方便的，帮助我们简化了好多实际开发中的问题，在项目中很值得使用
