Permission denied when attempting poetry self update --preview

[bennylut]

• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: Linux Mint 19 Cinnamon
• Poetry version: 1.1.8

Issue

I installed poetry using the new install-poetry.py script as described here.
I then proceeded to attempt and upgrade to 1.2.0a2 by running the command:
poetry self update --preview and got the following error:

 EnvCommandError

  Command ['pip', 'uninstall', 'urllib3', '-y'] errored with the following return code 2, and output: 
  Found existing installation: urllib3 1.22
  Uninstalling urllib3-1.22:
  ERROR: Exception:
  Traceback (most recent call last):
    File "/usr/lib/python3.6/shutil.py", line 550, in move
      os.rename(src, real_dst)
  PermissionError: [Errno 13] Permission denied: '/usr/lib/python3/dist-packages/urllib3' -> '/tmp/pip-uninstall-m6nzl8u_'

[Kurt-von-Laven]

I am able to replicate this when I attempt poetry self update from 1.1.8 to 1.1.10 or poetry self update --preview from 1.1.10 to 1.2.0a2. I also used the new install-poetry.py script and am running Ubuntu 21.04.

  - Updating certifi (2020.6.20 /usr/lib/python3/dist-packages -> 2021.5.30)

  EnvCommandError

  Command ['/usr/bin/pip3', 'uninstall', 'certifi', '-y'] errored with the following return code 2, and output: 
  Found existing installation: certifi 2020.6.20
  Uninstalling certifi-2020.6.20:
  ERROR: Exception:
  Traceback (most recent call last):
    File "/usr/lib/python3.9/shutil.py", line 806, in move
      os.rename(src, real_dst)
  OSError: [Errno 18] Invalid cross-device link: '/usr/lib/python3/dist-packages/certifi' -> '/tmp/pip-uninstall-0btivxm3'

[ruancomelli]

For anyone getting a similar error, I was able to update to v1.1.12 by running:

$ exit
$ deactivate
$ poetry self update

[jedie]

Maybe it's duplication of #5490 and the real problem is pypa/setuptools#3278 ?

[neersighted]

I'm closing this as there is no reproduction overall; this appears to mostly be an artifact of trying to self upgrade a distro-installed Poetry (which will not work). @jedie this is unrelated to #6371 or pypa/setuptools#3278.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.