poetry selects wrong python version when markers present #4959
Description
- 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 (
-vvvoption).
- OS version and name: linux + Python 3.8.10
- Poetry version: 1.2.0a2 (recent master)
Issue
Multiple constraints on python version fail when combined with valid markers.
This does work fine
# selecting 1.3.1 matching the system
[tool.poetry.dependencies]
python = "~3.8"
pandas = [
{version="1.3.2",python='~3.9'},
{version="1.3.1",python='~3.8'},
]
but not this
# selecting incompatible 1.3.2 and ignoring 1.3.1 - error
[tool.poetry.dependencies]
python = "~3.8"
pandas = [
{version="1.3.2",python='~3.9',markers="sys_platform=='linux'"},
{version="1.3.1",python='~3.8'},
]
when I move everything to markers it works fine again
# selecting 1.3.1 - fine!
[tool.poetry.dependencies]
python = "~3.8"
pandas = [
{version="1.3.2",markers="python_version=='3.9' and sys_platform=='linux'"},
{version="1.3.1",markers="python_version=='3.8'"},
]