如何将 mysqlclient 添加到 Poetry 环境

Question

我正在创建一个项目，该项目需要将运行在 docker 容器中的 Python 连接到运行在另一个容器中的 MySQL 数据库。目前，我的

docker-compose

文件如下所示：

version: "3"

services:

  login:
    build:
      context: ./services/login
      dockerfile: docker/Dockerfile
    ports:
      - "80:80"
    # Need to remove this volume - this is only for dev work
    volumes:
      - ./services/login/app:/app
    # Need to remove this command - this is only for dev work
    command: /start-reload.sh

  db_users:
    image: mysql
    volumes:
      - ./data/mysql/users_data:/var/lib/mysql
      - ./databases/users:/docker-entrypoint-initdb.d/:ro
    restart: always
    ports:
      - 3306:3306
    # Remove 'expose' below for prod
    expose:
      - 3306
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: users
      MYSQL_USER: user
      MYSQL_PASSWORD: password

我的

Dockerfile

login

服务看起来像这样：

# Note: this needs to be run from parent service directory

FROM tiangolo/uvicorn-gunicorn-fastapi:python3.8

# Install Poetry
RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
    cd /usr/local/bin && \
    ln -s /opt/poetry/bin/poetry && \
    poetry config virtualenvs.create false

# Copy using poetry.lock* in case it doesn't exist yet
COPY ./app/pyproject.toml ./app/poetry.lock* /app/

RUN poetry install --no-root --no-dev

COPY ./app /app

我正在尝试将我的

login

服务连接到

db_users

，并想使用 mysqlclient，但是当我运行

poetry add mysqlclient

时，我收到一个错误，其中包括以下几行：

    /bin/sh: mysql_config: command not found
    /bin/sh: mariadb_config: command not found
    /bin/sh: mysql_config: command not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/33/5yy7bny964bb0f3zggd1b4440000gn/T/pip-req-build-lak6lqu7/setup.py", line 15, in <module>
        metadata, options = get_config()
      File "/private/var/folders/33/5yy7bny964bb0f3zggd1b4440000gn/T/pip-req-build-lak6lqu7/setup_posix.py", line 70, in get_config
        libs = mysql_config("libs")
      File "/private/var/folders/33/5yy7bny964bb0f3zggd1b4440000gn/T/pip-req-build-lak6lqu7/setup_posix.py", line 31, in mysql_config
        raise OSError("{} not found".format(_mysql_config_path))
    OSError: mysql_config not found
    mysql_config --version
    mariadb_config --version
    mysql_config --libs
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

我假设这与我需要 mysql-connector-c 库才能工作这一事实有关，但我不确定如何在诗歌中实现这一点。

我正在查看以下this教程，但由于我不是在本地运行 MySQL 而是在 docker 中运行，所以我不确定如何将这些步骤转换为在 docker 中工作。

所以基本上，我的问题有两个方面：

1. 如何将

   mysqlclient

   添加到我的

   pyproject.toml

   文件
2. 我如何让它在我的 docker env 中工作？

Answer 1

我忘记了我的开发环境也在 Docker 中，所以我真的不需要关心诗歌环境。

话虽如此，我将 Dockerfile 编辑为如下所示：

# Note: this needs to be run from parent service directory

FROM tiangolo/uvicorn-gunicorn-fastapi:python3.8

RUN apt-get install default-libmysqlclient-dev

# Install Poetry
RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
    cd /usr/local/bin && \
    ln -s /opt/poetry/bin/poetry && \
    poetry config virtualenvs.create false

# Copy using poetry.lock* in case it doesn't exist yet
COPY ./app/pyproject.toml ./app/poetry.lock* /app/

RUN poetry install --no-root --no-dev

COPY ./app /app

现在一切都按预期工作了。

Answer 2

对于所有其他因为无法将 mysqlclient 添加到诗歌中而被 google 引导到这里的人：

问题是 mysqlclient 不是您要查找的 python 包的名称。您需要运行以下命令：

poetry add mysql-connector-python