Unable to install python3.8-minimal via apt

[Skyler Hardy]

Using the latest Ubuntu docker image, apt-get fails to install python:

root@2344d13f1b73:/# apt-get install -y python3.8-minimal
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3.8-minimal is already the newest version (3.8.5-1~20.04.2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up python3.8-minimal (3.8.5-1~20.04.2) ...
Traceback (most recent call last):
  File "/usr/lib/python3.8/py_compile.py", line 218, in <module>
    sys.exit(main())
  File "/usr/lib/python3.8/py_compile.py", line 209, in main
    compile(filename, doraise=True)
  File "/usr/lib/python3.8/py_compile.py", line 172, in compile
    importlib._bootstrap_external._write_atomic(cfile, bytecode, mode)
  File "<frozen importlib._bootstrap_external>", line 126, in _write_atomic
PermissionError: [Errno 13] Permission denied: '/usr/lib/python3.8/__pycache__/__future__.cpython-38.pyc.140103645134608'
dpkg: error processing package python3.8-minimal (--configure):
 installed python3.8-minimal package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 python3.8-minimal
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@2344d13f1b73:/#

[Éric St-Jean (esj)]

i just tried this on fresh bionic and focal containers, and can install python3.8-minimal just fine

which container are you using exactly?
is it untouched or this is your container image after building on top of ubuntu?

[Skyler Hardy (sdhardy)]

This is the untouched container image from docker. I ran docker pull ubuntu:focal:

sky@lp1:~$ sudo docker pull ubuntu:focal
[sudo] password for sky:
focal: Pulling from library/ubuntu
Digest: sha256:a15789d24a386e7487a407274b80095c329f89b1f830e8ac6a9323aa61803964
Status: Downloaded newer image for ubuntu:focal
docker.io/library/ubuntu:focal

sky@lp1:~$ sudo docker image inspect ubuntu:focal
[
    {
        "Id": "sha256:8e428cff54c8a8d9759e0b0e13d9224ffe7617abb53a73e01550e32c15827e17",
        "RepoTags": [
            "ubuntu:20.04",
            "ubuntu:focal",
            "ubuntu:latest"
        ],
        "RepoDigests": [
            "ubuntu@sha256:a15789d24a386e7487a407274b80095c329f89b1f830e8ac6a9323aa61803964"
        ],
<trim>

I'll attach a full log for reference. I ran the following to generate the log:

sudo docker run -it ubuntu:focal /bin/bash -c "apt-get update && apt-get install -y python3"

I just tried this using a debian image and I'm having the same issue, so it may be a problem with my docker version or my host system.

[Skyler Hardy (sdhardy)]

I installed from the docker repo rather than the ubuntu repo and it works without a problem now.

Thank you for your time.