在构建 Docker 图像时安装 wkhtmltopdf 时未找到 Pip 错误

Question

当我尝试构建图像时，我得到：

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 dockerfile：

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"]

我在这里想念什么？

Answer 1

看起来您实际上是在尝试安装py3-wkhtmltopdf 。 为此，您只需利用python -m pip并直接安装 package：

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"]

其中requirements.txt可能如下所示：

py3-wkhtmltopdf