Traceback when calling "poetry" command: ModuleNotFoundError: No module named 'cachecontrol'

Thanks for taking your time to report this issue and help making Ubuntu better.

I can confirm I get the same error message when attempting to run poetry on Ubuntu Jammy. After some digging I found a corresponding bug report in Debian (see the attached bug watch), which also explains the root cause. Poetry has an odd dependency on "python3-cachecontrol (>= 0.12.6) | python3 (>> 3.6)", and since python3 is already installed it skips the cachecontrol package. Based on the upstream report, they are looking into how to get the dependencies generated properly.

Until then, you can install "python3-cachecontrol" manually as a workaround. After doing that, poetry now lists information on usage and seems to be working as expected.

It requires to upgrade version. Please make sure to install correct version of cachecontrol and try again to install poetry.

Some reference here might help:

https://lifesaver.codes/answer/modulenotfounderror-no-module-named-cleo-3071
https://www.quizcure.com/python/modulenotfounderror-no-module-named-exceptions
https://githubhot.com/repo/python-poetry/poetry/issues/4463

@Akash,

this is about the debian package (which handles the dependencies).
The bug ist still there. Easy reproducer is:

$ sudo apt install python3-poetry
$ poetry
Traceback (most recent call last):
  File "/usr/bin/poetry", line 5, in <module>
    from poetry.console import main
  File "/usr/lib/python3/dist-packages/poetry/console/__init__.py", line 1, in <module>
    from .application import Application
  File "/usr/lib/python3/dist-packages/poetry/console/application.py", line 7, in <module>
    from .commands.about import AboutCommand
  File "/usr/lib/python3/dist-packages/poetry/console/commands/__init__.py", line 4, in <module>
    from .check import CheckCommand
  File "/usr/lib/python3/dist-packages/poetry/console/commands/check.py", line 2, in <module>
    from poetry.factory import Factory
  File "/usr/lib/python3/dist-packages/poetry/factory.py", line 18, in <module>
    from .repositories.pypi_repository import PyPiRepository
  File "/usr/lib/python3/dist-packages/poetry/repositories/pypi_repository.py", line 11, in <module>
    from cachecontrol import CacheControl
ModuleNotFoundError: No module named 'cachecontrol'

Yes I also got this on a very fresh install of 22.04. I've done very little to customise the system, I've only done `apt install python3-venv python3-poetry`.

This package should include the "cachecontrol" dependency. Presumably a very simple fix.

It's a very sad story about Debian and ubuntu package development. A relatively major bug with a one-line fix will celebrate a birthday soon.

This was fixed in Debian in release Version: 1.2.2+dfsg-1. As such, it should not affect lunar.

Keeping the ticket open to work on an SRU to jammy.

Sponsored to the jammy and kinetic unapproved queues.

Removing the sponsors team, please re-add us if there is anything further we can do to help.

Thanks!

Hello Thomas, or anyone else affected,

Accepted poetry into jammy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/poetry/1.1.12+dfsg-1ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-jammy to verification-done-jammy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-jammy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Thomas, or anyone else affected,

Accepted poetry into kinetic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/poetry/1.1.14+dfsg-1ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-kinetic to verification-done-kinetic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-kinetic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

I reproduced the issue in both jammy and kinetic. python3-poetry 1.1.12+dfsg-1ubuntu1 (jammy-proposed) respective python3-poetry 1.1.14+dfsg-1ubuntu1 (kinetic-proposed) fixes it by installing python3-cachecontrol.

This bug was fixed in the package poetry - 1.1.14+dfsg-1ubuntu1

---------------
poetry (1.1.14+dfsg-1ubuntu1) kinetic; urgency=medium

  * add runtime dependency on python3-cachecontrol. LP: #1958227
  * update Maintainer to Ubuntu mailing list

 -- Rolf Leggewie <email address hidden> Wed, 11 Jan 2023 18:09:40 +0100

The verification of the Stable Release Update for poetry has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package poetry - 1.1.12+dfsg-1ubuntu1

---------------
poetry (1.1.12+dfsg-1ubuntu1) jammy-proposed; urgency=medium

  * add runtime dependency on python3-cachecontrol. LP: #1958227
  * update Maintainer to Ubuntu mailing list

 -- Rolf Leggewie <email address hidden> Wed, 11 Jan 2023 10:44:59 +0100