Python prophet installation fails in Docker

[Franky1]

docker run -ti --rm python:3.8-slim /bin/bash
pip install prophet

fails with

ModuleNotFoundError: No module named 'numpy'
----------------------------------------
ERROR: Failed building wheel for prophet

[Franky1]

I have a working solution, which seems to build without errors.
It uses a 3-step pip installation.

FROM python:3.9-slim

# we probably need build tools?
RUN apt-get update \
    && apt-get install --yes --no-install-recommends \
    build-essential

# we need the requirements.txt file from prophet to be in the root of the project
# https://github.com/facebook/prophet/blob/main/python/requirements.txt
WORKDIR /app
COPY . .

# first: install all required packages for pystan
RUN pip install --no-cache-dir --upgrade cython numpy
# second: install all required packages for prophet from their requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt
# third: install prophet itself
RUN pip install --no-cache-dir --upgrade prophet

However, the whole installation is a pain.
Could you please fix this, that this pip installation works in the major OSes:

pip install prophet

[thomasaarholt]

I believe this is part of what #2041 is about, with a fix being finalised for this problem in #2088.

[tcuongd]

Please follow these instructions to install either the PyPI release or the development version:

• https://github.com/facebook/prophet#installation-in-python---pypi-release
• https://github.com/facebook/prophet#installation-in-python---development-version

The simple pip install won't work until we've uploaded the binaries to PyPI (currently a manual process).

[akosfurton]

This has been resolved in prophet 1.1. You can now pip install prophet directly from PyPI

[Franky1]

Yes, i tested it already yesterday, when the new version came out and it worked without issues.
Issue can be closed.