在 Docker build 中使用 pip install 时出现 ModuleNotFoundError

Question

所以，我遇到了很多讨论这个特定问题的线程，但无法真正找到适合我的修复方法。

我在我的根目录requirements.txt 文件中总结了以下要求

stripe==2.51.0
bottle==0.12.18

我的 src/app.py 开始为

from bottle import route, run, template, get, post, request, response, static_file
import stripe

# rest of the code I assume isn't relevant

我正在使用 Dockerfile 构建镜像，如下所示：

#  build 1
FROM python:3.8.5 AS builder
COPY requirements.txt .
RUN python -m pip install --user -r requirements.txt

# build 2
FROM python:3.8.5-slim
COPY --from=builder /root/.local/bin /root/.local
COPY ./src .

EXPOSE 8080
ENV PATH=/root/.local:$PATH
CMD [ "python", "app.py" ]

即使我在将根路径添加到最终路径的同时使用了 --user，我仍然会遇到以下错误：

ModuleNotFoundError: No module named 'bottle'

我也 - 我认为 - 在安装我的软件包时使用相同的解释器运行所以我真的不知道如何解决这个问题。

任何正确方向的指示将不胜感激。

非常感谢大家！

Answer 1

能够下载

stripe==2.51.0
bottle==0.12.18

使用给定的 docker 文件和 requirements.txt。

将 Dockerfile 和 requirements.txt 放在同一个文件夹中，然后在本地计算机上安装 docker-desktop 和运行“docker 构建。”来自 cmd 中的那个文件夹，它将提供本地构建 docker 图像。收到日志：

Sending build context to Docker daemon  3.072kB
Step 1/9 : FROM python:3.8.5 AS builder
3.8.5: Pulling from library/python
d6ff36c9ec48: Pull complete
c958d65b3090: Pull complete
edaf0a6b092f: Pull complete
80931cf68816: Pull complete
7dc5581457b1: Pull complete
87013dc371d5: Pull complete
dbb5b2d86fe3: Pull complete
4cb6f1e38c2d: Pull complete
0b3d7b2fc317: Pull complete
Digest: sha256:d21be681213425a9a0b736f62b218dad823789a5c708543fbad284b0c06f62a5
Status: Downloaded newer image for python:3.8.5
 ---> 62aa40094bb1
Step 2/9 : COPY requirements.txt .
 ---> e6ea6fe42122
Step 3/9 : RUN python -m pip install --user -r requirements.txt
 ---> Running in b9ea44bb9f44
Collecting stripe==2.51.0
  Downloading stripe-2.51.0-py2.py3-none-any.whl (203 kB)
Collecting bottle==0.12.18
  Downloading bottle-0.12.18-py3-none-any.whl (89 kB)
Collecting requests>=2.20; python_version >= "3.0"
  Downloading requests-2.24.0-py2.py3-none-any.whl (61 kB)
Collecting urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1
  Downloading urllib3-1.25.10-py2.py3-none-any.whl (127 kB)
Collecting idna<3,>=2.5
  Downloading idna-2.10-py2.py3-none-any.whl (58 kB)
Collecting chardet<4,>=3.0.2
  Downloading chardet-3.0.4-py2.py3-none-any.whl (133 kB)
Collecting certifi>=2017.4.17
  Downloading certifi-2020.6.20-py2.py3-none-any.whl (156 kB)

也尝试将 docker 文件更新为 Dockerfile

# build 2
FROM python:3.8.5-slim
ADD requirements.txt /
ENV PATH=/root/.local/bin:$PATH
RUN pip install --user -r requirements.txt
COPY ./src .   #### 

EXPOSE 8080
ENV PATH=/root/.local:$PATH ###not sure of the use####
CMD [ "python", "app.py" ]

Answer 2

进行这些更改：

COPY --from=builder /root/.local /root/.local

ENV PATH=/root/.local/bin:$PATH

建议：使用slim-buster，你的Dockerfile可以这样结束：

FROM python:3.8.5-slim-buster AS base

FROM base AS builder
COPY requirements.txt .
RUN python -m pip install --user -r requirements.txt

FROM base AS release
COPY --from=builder /root/.local /root/.local
COPY ./src .
EXPOSE 8080
ENV PATH=/root/.local/bin:$PATH
CMD [ "python", "app.py" ]

在 Docker build 中使用 pip install 时出现 ModuleNotFoundError

ModuleNotFoundError when using pip install in Docker build

pip

build

requirements.txt

docker

dockerfile