pip install wants to compile package on Docker python:3.9-slim

[gitpushdashf]

I'm not sure what's going on here.

 % docker run -ti python:3.9 /bin/bash
root@1214f7af75e1:/# python3 -m pip install backports.zoneinfo
Collecting backports.zoneinfo
  Downloading backports.zoneinfo-0.2.1.tar.gz (74 kB)
     |████████████████████████████████| 74 kB 2.2 MB/s
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Building wheels for collected packages: backports.zoneinfo
  Building wheel for backports.zoneinfo (PEP 517) ... done
  Created wheel for backports.zoneinfo: filename=backports.zoneinfo-0.2.1-cp39-cp39-linux_x86_64.whl size=83141 sha256=3965
fcaeae0b42b3bd8c07333402515e06d52e0d52ada70eb40f4530bfcf82b9
  Stored in directory: /root/.cache/pip/wheels/f6/da/c4/7ac0330c0d9763cbd549898f8815e8cbc01a5bd31a009be764
Successfully built backports.zoneinfo
Installing collected packages: backports.zoneinfo
Successfully installed backports.zoneinfo-0.2.1
WARNING: Running pip as root will break packages and permissions. You should install packages reliably by using venv: https
://pip.pypa.io/warnings/venv
WARNING: You are using pip version 21.1.1; however, version 21.1.2 is available.
You should consider upgrading via the '/usr/local/bin/python3 -m pip install --upgrade pip' command.
root@1214f7af75e1:/# exit

~ % docker run -ti python:3.9-slim /bin/bash
Unable to find image 'python:3.9-slim' locally
3.9-slim: Pulling from library/python
69692152171a: Already exists
59773387c0e7: Already exists
3fc84e535e87: Already exists
68ebeebdab6f: Already exists
3d3af2ef8baa: Pull complete
Digest: sha256:80b238ba357d98813bcc425f505dfa238f49cf5f895492fc2667af118dccaa44
Status: Downloaded newer image for python:3.9-slim
root@3dbd3fe63499:/# python3 -m pip install backports.zoneinfo
Collecting backports.zoneinfo
  Downloading backports.zoneinfo-0.2.1.tar.gz (74 kB)
     |████████████████████████████████| 74 kB 2.4 MB/s
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Building wheels for collected packages: backports.zoneinfo
  Building wheel for backports.zoneinfo (PEP 517) ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/local/bin/python3 /usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/in_process/_in_process.py build_wheel /tmp/tmpmvgwhv8z
       cwd: /tmp/pip-install-locab8gm/backports-zoneinfo_46d7f44a7b1348bd808d538b0cb455b1
  Complete output (35 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-3.9
  creating build/lib.linux-x86_64-3.9/backports
  copying src/backports/__init__.py -> build/lib.linux-x86_64-3.9/backports
  creating build/lib.linux-x86_64-3.9/backports/zoneinfo
  copying src/backports/zoneinfo/_common.py -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  copying src/backports/zoneinfo/_zoneinfo.py -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  copying src/backports/zoneinfo/_tzpath.py -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  copying src/backports/zoneinfo/__init__.py -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  copying src/backports/zoneinfo/_version.py -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  running egg_info
  writing src/backports.zoneinfo.egg-info/PKG-INFO
  writing dependency_links to src/backports.zoneinfo.egg-info/dependency_links.txt
  writing requirements to src/backports.zoneinfo.egg-info/requires.txt
  writing top-level names to src/backports.zoneinfo.egg-info/top_level.txt
  reading manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  warning: no files found matching '*.png' under directory 'docs'
  warning: no files found matching '*.svg' under directory 'docs'
  no previously-included directories found matching 'docs/_build'
  no previously-included directories found matching 'docs/_output'
  adding license file 'LICENSE'
  adding license file 'licenses/LICENSE_APACHE'
  writing manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
  copying src/backports/zoneinfo/__init__.pyi -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  copying src/backports/zoneinfo/py.typed -> build/lib.linux-x86_64-3.9/backports/zoneinfo
  running build_ext
  building 'backports.zoneinfo._czoneinfo' extension
  creating build/temp.linux-x86_64-3.9
  creating build/temp.linux-x86_64-3.9/lib
  gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/usr/local/include/python3.9 -c lib/zoneinfo_module.c -o build/temp.linux-x86_64-3.9/lib/zoneinfo_module.o -std=c99
  error: command 'gcc' failed: No such file or directory
  ----------------------------------------
  ERROR: Failed building wheel for backports.zoneinfo
Failed to build backports.zoneinfo
ERROR: Could not build wheels for backports.zoneinfo which use PEP 517 and cannot be installed directly
root@3dbd3fe63499:/# exit

Do you have any ideas on this? Thank you! python:3.8-slim works fine, which is puzzling.

[pauloxnet]

The problem is the lack of the py39 wheel on pypi so it try to compile it but gcc is missing.

@gitpushdashf you can add build-essential in your Dockerfile.

@pganssle can you add a python 3.9 wheel on pypi.org for zoneinfo 0.2.1?

[pganssle]

@pauloxnet zoneinfo is built in to Python 3.9, and at least at the moment I don't plan to backport new features from 3.11+ into backports.zoneinfo (unless there are some pretty killer features), so this package isn't really supported on Python 3.9+.

I think the right thing to do is to depend on backports.zoneinfo; python_version < '3.9', and in your code use:

try:
    from backports import zoneinfo
except ImportError:
    import zoneinfo

Or something similar.

I suppose it might also be feasible to just make backports.zoneinfo import zoneinfo from the standard library in Python 3.9+, and not install or compile anything, though I don't really want to paint myself into a corner with respect to backporting features from 3.11+.

[pauloxnet]

@pganssle thanks for your explanation, I confused version of python locally , now I fixed it.

[gitpushdashf]

Thank you for explaining!

It's a 3rd party dependency, so I'll see if we can fix it there with the import.

[gitpushdashf]

I'll go ahead and close this out. I think it makes sense to only require dependencies like this for the Python versions that need them.

[Yalchin403]

build-essential

ENV PYTHONUNBUFFERED 1
COPY ./requirements.txt /requirements.txt
RUN pip install --upgrade pip
RUN apt-get update \
    && apt-get -y install libpq-dev gcc
RUN pip install -r /requirements.txt
RUN mkdir /app
COPY . /app
WORKDIR /app```


this works fine for me, hope this is helpful

[melroy89]

ENV PYTHONUNBUFFERED 1
COPY ./requirements.txt /requirements.txt
RUN pip install --upgrade pip
RUN apt-get update \
    && apt-get -y install libpq-dev gcc
RUN pip install -r /requirements.txt
RUN mkdir /app
COPY . /app
WORKDIR /app```


this works fine for me, hope this is helpful

Hint: If you first set your WORKDIR. You can use the COPY commands afterwards as follows: COPY . . (I know it's unrelated to the issue)

[yangislet]

it spent a lot of time, but it still not work! ERROR: Could not build wheels for backports.zoneinfo,

[safiullahkhan45]

This error arise because you have a difference of python versions in your local virtual environment and docker. Update your Dockerfile in the following way.
From this:
FROM python:3
to this:
FROM python:3.8

For me it works fine now.