Django thouhg没有找到枕头，它是用docker安装的

Question

你好，我正在关注这个教程教程链接。一切都很好，但当我运行下面的命令时，它说枕头没有找到，但枕头已经安装好了。

docker-compose -f docker-compose.prod.yml exec app python manage.py migrate --noinput

这就是错误：

employee.Employee.image: (fields.E210) Cannot use ImageField because Pillow is not installed.
HINT: Get Pillow at https://pypi.org/project/Pillow/ or run command "python -m pip install Pillow".
students.Student.image: (fields.E210) Cannot use ImageField because Pillow is not installed.
HINT: Get Pillow at https://pypi.org/project/Pillow/ or run command "python -m pip install Pillow".

然后我再次尝试使用以下命令进行安装

docker-compose -f docker-compose.prod.yml exec app python -m pip install Pillow

它说枕头是枕头已经安装

Requirement already satisfied: Pillow in /usr/local/lib/python3.8/site-packages (6.2.1)

这是我的案卷

###########
# BUILDER #
###########
# pull official base image
FROM python:3.8.3-alpine as builder
# set work directory
WORKDIR /usr/src/app
# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
# install psycopg2 dependencies
RUN apk update 
&& apk add postgresql-dev gcc python3-dev zlib-dev jpeg-dev musl-dev

# lint
RUN pip install --upgrade pip
RUN pip install Pillow
COPY . .

# install dependencies
COPY ./requirements.txt .
RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels -r requirements.txt

#########
# FINAL #
#########
# pull official base image
FROM python:3.8.3-alpine
# create directory for the app user
RUN mkdir -p /home/app
# create the app user
RUN addgroup -S app && adduser -S app -G app
# create the appropriate directories
ENV HOME=/home/app
ENV APP_HOME=/home/app/web
RUN mkdir $APP_HOME
RUN mkdir $APP_HOME/staticfiles
RUN mkdir $APP_HOME/mediafiles
WORKDIR $APP_HOME
# install dependencies
RUN apk update && apk add libpq
COPY --from=builder /usr/src/app/wheels /wheels
COPY --from=builder /usr/src/app/requirements.txt .
RUN pip install --no-cache /wheels/*
# copy entrypoint-prod.sh
COPY ./entrypoint.prod.sh $APP_HOME
# copy project
COPY . $APP_HOME
# chown all the files to the app user
RUN chown -R app:app $APP_HOME
# change to the app user
USER app
# run entrypoint.prod.sh
ENTRYPOINT ["/home/app/web/entrypoint.prod.sh"]

请帮帮我。

Answer 1

请尝试使用"枕头；从小写p.开始

Answer 2

将这两行添加到FINAL部分下，就在RUN apk update && apk add libpq下方

# install pillow dependencies
RUN apk add --no-cache jpeg-dev zlib-dev
RUN apk add --no-cache --virtual .build-deps build-base linux-headers

之所以发生这种情况，是因为BUILDER在创建图像后删除了Pillow所需的依赖关系。在FINAL映像中，Pillow可用，但其所需的依赖项不可用。

Answer 3

我遇到了同样的问题。将这些依赖项添加到FINAL部分解决了这个问题

# install pillow dependencies
RUN apk add --no-cache jpeg-dev zlib-dev 
fribidi-dev 
harfbuzz-dev 
lcms2-dev 
openjpeg-dev 
tcl-dev 
tiff-dev 
tk-dev