Poetry ignores platform constraint when using local path

• 18.04.2 Ubuntu 5.0.0-32-generic:
• Poetry version 1.0.10:
• **Link to toml https://gist.github.com/M-J-Murray/7c3d538db07413614d9ff6f04ce28b57**:

Issue

Hello, I’m attempting to setup poetry such that a couple of local libraries are only installed when using windows. However, the platform argument is failing in two ways. When I use platform and path arguments on ubuntu, like so:

gdal = {platform = "windows", path = "thirdparty/GDAL-3.1.2-cp37-cp37m-win32.whl"}

Even though I am not on windows, poetry keeps trying to install the library and failing because the install will only work on windows. As a workarounds I have tried:

gdal = {markers = "sys_platform == 'windows'", path = "thirdparty/GDAL-3.1.2-cp37-cp37m-win32.whl"}
gdal = {markers = "sys_platform != 'windows'", path = "thirdparty/GDAL-3.1.2-cp37-cp37m-win32.whl"}
gdal = {markers = "sys_platform == 'windows' and sys_platform != 'linux'", path = "thirdparty/GDAL-3.1.2-cp37-cp37m-win32.whl"}

But it keeps ignoring my platform requirement. I have a feeling the problem comes from the combination of path and platform markers.

[neersighted]

@billfreeman44 your issue is different – this issue is specifically for path dependencies, not URL dependencies. That being said, the following works as expected on every platform for me – I suspect your markers are just slightly off:

[[tool.poetry.dependencies.hdbscan]]
python = "3.9"
markers = "platform_python_implementation == 'CPython' and sys_platform == 'linux' and platform_machine == 'x86_64'"
url = "https://github.com/rxfork/hdbscan/releases/download/0.8.28/hdbscan-0.8.28-cp39-cp39-linux_x86_64.whl"

[[tool.poetry.dependencies.hdbscan]]
python = "3.9"
markers = "platform_python_implementation == 'CPython' and sys_platform == 'linux' and platform_machine == 'aarch64'"
url = "https://github.com/rxfork/hdbscan/releases/download/0.8.28/hdbscan-0.8.28-cp39-cp39-linux_aarch64.whl"

[[tool.poetry.dependencies.hdbscan]]
markers = "python_version != '3.9' or sys_platform != 'linux'"
version = "0.8.28"

If you need more help or advice, please start a Discussion, join Discord, or create a detailed issue report if you think there may be a bug.

[neersighted]

Thanks for the analysis @dimbleby – we’ve solved the original issue and the issue that I replied to. Your conclusions track for me and answer the version @espdev commented on. Closing as resolved/tracking @espdev’s version in #6710.