[scripts] Test run with isolated python

[Osyotr]

REGRESSION: icu:x64-windows failed with BUILD_FAILED. If expected, add icu:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: python3:x64-windows failed with BUILD_FAILED. If expected, add python3:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: glad:x64-windows failed with BUILD_FAILED. If expected, add glad:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: clblas:x64-windows failed with BUILD_FAILED. If expected, add clblas:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: cmake:x64-windows cascaded, but it is required to pass. (D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt).
REGRESSION: cmake-user:x64-windows cascaded, but it is required to pass. (D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt).
REGRESSION: ctemplate:x64-windows failed with BUILD_FAILED. If expected, add ctemplate:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: godot-cpp:x64-windows failed with BUILD_FAILED. If expected, add godot-cpp:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: gtk:x64-windows cascaded, but it is required to pass. (D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt).
REGRESSION: qpid-proton:x64-windows failed with BUILD_FAILED. If expected, add qpid-proton:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: keystone:x64-windows failed with BUILD_FAILED. If expected, add keystone:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: libudis86:x64-windows failed with BUILD_FAILED. If expected, add libudis86:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: mesa:x64-windows failed with BUILD_FAILED. If expected, add mesa:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: open62541:x64-windows failed with BUILD_FAILED. If expected, add open62541:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: opencc:x64-windows failed with BUILD_FAILED. If expected, add opencc:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: openxr-loader:x64-windows failed with BUILD_FAILED. If expected, add openxr-loader:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.
REGRESSION: qt:x64-windows cascaded, but it is required to pass. (D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt).
REGRESSION: z3:x64-windows failed with BUILD_FAILED. If expected, add z3:x64-windows=fail to D:\a\_work\1\s\scripts\azure-pipelines/../ci.baseline.txt.

[Osyotr]

It's possible to keep ._pth file and be able to import scripts from current directory, but some ports (icu) expect non-isolated python because they explicitly set PYTHONPATH.

[dg0yt]

Can you tell me how ports/vcpkg-get-python/vcpkg-port-config.cmake fits into this picture?

[Osyotr]

Can you tell me how ports/vcpkg-get-python/vcpkg-port-config.cmake fits into this picture?

vcpkg-get-python creates venv using python in CURRENT_HOST_INSTALLED_DIR. Venv ignores PYTHONPATH, so it can't be used for icu (though maybe it's icu that needs fixing). Also building python just to run scripts is an overkill.

[dg0yt]

And then there is vcpkg-get-python-packages which deals with venv, doesn't build python, but insists on being asked for packages...