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# 发包方法
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## conda 代替系统依赖
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conda可以用来代替一些 apt-get 安装的系统依赖,这样可以让项目适用于除了 ubuntu 以外的系统。
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使用 conda 可以安装 sox, libsndfile,swig等 paddlespeech 需要的依赖:
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```bash
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conda install -y -c conda-forge sox libsndfile
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```
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部分系统会缺少libbzip2库,这个 paddlespeech 也是需要的,这也可以用 conda 安装:
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```bash
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conda install -y -c bzip2
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```
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conda也可以安装linux的C++的依赖:
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```bash
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conda install -y -c gcc_linux-64=8.4.0 gxx_linux-64=8.4.0
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```
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#### 剩余问题:使用conda环境编译kenlm失败。目前在conda环境下编译kenlm会出现链接失败的问题
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目前知道需要的依赖:
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```bash
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conda install -c conda-forge eigen boost cmake
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```
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## python 编包方法
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#### 创建 pypi的账号
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创建 pypi 账号
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#### 下载 twine
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```
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pip install twine
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```
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#### python 编包
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编写好python包的setup.py, 然后使用如下命令编wheel包:
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```bash
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python setup.py bdist_wheel
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```
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如果要编源码包,用如下命令:
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```bash
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python setup.py sdist
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```
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#### 上传包
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```bash
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twine upload dist/wheel包
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```
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输入账号和密码后就可以上传wheel包了
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#### 关于python 包的发包信息
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主要可以参考这个[文档](https://packaging.python.org/en/latest/guides/distributing-packages-using-setuptools/?highlight=find_packages)
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## Manylinux 降低含有 C++ 依赖的 pip 包的 glibc 依赖
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为了让有C++依赖的 pip wheel 包可以适用于更多的 linux 系统,需要降低其本身的 glibc 的依赖。这就需要让 pip wheel 包在 manylinux 的 docker 下编包。关于查看系统的 glibc 版本,可以使用命令:`ldd --version`。
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### Manylinux
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关于Many Linux,主要可以参考 Github 项目的说明[ github many linux](https://github.com/pypa/manylinux)。
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manylinux1 支持 Centos5以上, manylinux2010 支持 Centos 6 以上,manylinux2014 支持Centos 7 以上。
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目前使用 manylinux2010 基本可以满足所有的 linux 生产环境需求。(不建议使用manylinux1,系统较老,难度较大)
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### 拉取 manylinux2010
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```bash
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docker pull quay.io/pypa/manylinux1_x86_64
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```
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### 使用 manylinux2010
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启动 manylinux2010 docker。
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```bash
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docker run -it xxxxxx
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```
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在 Many Linux 2010 的docker环境自带 swig 和各种类型的 python 版本。这里注意不要自己下载conda 来安装环境来编译 pip 包,要用 docker 本身的环境来编包。
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设置python:
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```bash
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export PATH="/opt/python/cp37-cp37m/bin/:$PATH"
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#export PATH="/opt/python/cp38-cp38/bin/:$PATH"
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#export PATH="/opt/python/cp39-cp39/bin/:$PATH"
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```
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随后正常编包,编包后需要使用 [auditwheel](https://github.com/pypa/auditwheel) 来降低编好的wheel包的版本。
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显示 wheel 包的 glibc 依赖版本
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```bash
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auditwheel show wheel包
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```
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降低 wheel包的版本
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```bash
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auditwheel repair wheel包
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```
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## 区分 install 模式和 develop 模式
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可以在setup.py 中划分 install 的依赖(基本依赖)和 develop 的依赖 (开发者额外依赖)。 setup_info 中 `install_requires` 设置 install 的依赖,而在 `extras_require` 中设置 `develop` key为 develop的依赖。
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普通安装可以使用:
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```bash
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pip install .
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```
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另外使用 pip 安装已发的包也是使用普通安装的:
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```
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pip install paddlespeech
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```
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而开发者可以使用如下方式安装,这样不仅会安装install的依赖,也会安装develop的依赖, 即:最后安装的依赖=install依赖 + develop依赖:
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```bash
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pip install -e .[develop]
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```
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## python 包的动态安装
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可以使用 pip包来实现动态安装:
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```python
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import pip
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if int(pip.__version__.split('.')[0]) > 9:
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from pip._internal import main
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else:
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from pip import main
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main(['install', package_name])
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```
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