Poetry Update always re-installs *all* dependencies

• 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).

• **Linux 3.10.0-1062.21.1.el7.x86_64 **
• 1.08:
• Link of a Gist with the contents of your pyproject.toml file:

Issue

Since upgrading to 1.0.8 poetry will “upgrade” every dependency to the same version as previously. ie after the dependency resolution / Version solving poetry thinks every single package in pyproject.toml ( and dependencies ) needs upgrading and proceeds to update them to exactly the same version as previously. I’ve tried deleting the venv and re-running and get consistent behavior every time.

bash-4.2$ poetry update
Updating dependencies
Resolving dependencies... (52.7s)

Package operations: 0 installs, 59 updates, 0 removals

- Updating pycparser (2.20 -> 2.20)
- Updating certifi (2020.4.5.2 -> 2020.4.5.2)
- Updating cffi (1.14.0 -> 1.14.0)
- Updating chardet (3.0.4 -> 3.0.4)
- Updating idna (2.9 -> 2.9)

[tlc28]

Hi @abn and sorry for the late reply! Seems to solve the problem, thanks!

[Imaclean74]

looks better for me on 1.0.9. Thanks @mxab , @frankier