在构建Docker映像时安装wkhtmltopdf时，Pip未发现错误

Question

当我尝试构建图像时，我会得到：

Traceback (most recent call last):
File "/usr/local/bin/pip3", line 5, in <module>
from pip._internal.cli.main import main
ModuleNotFoundError: No module named 'pip._internal.cli.main'

这是我的档案：

FROM python:3.8-slim-buster
WORKDIR /app
COPY requirements.txt requirements.txt
RUN pip3 install -r requirements.txt
RUN pip install python3-wkhtmltopdf
RUN apt-get update
RUN apt-get install -y wkhtmltopdf
COPY . .
CMD [ "python3", "app.py"]

我在这里错过了什么？

Answer 1

看起来您实际上正在尝试安装py3wkhtmltopdf。要做到这一点，您只需利用python -m pip并直接安装软件包：

FROM python:3.8-slim-buster
WORKDIR /app
# following their linux installation instructions
RUN apt-get update && apt-get install -y 
xvfb 
xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic 
wkhtmltopdf
COPY requirements.txt requirements.txt
RUN python -m pip install -r requirements.txt
COPY . .
CMD [ "python", "app.py"]

requirements.txt可能看起来像什么：

py3-wkhtmltopdf