Hi,
I investigated a little ;-).
From what I understand flit tries to use a relative path in the RECORD file [1]
but that doesn't seem to work always. So my idea would be to strip the build path
from the resulting RECORD file directly in the install_directly() function at [2].
Not entirely sure how to get the path of the file, but you probably have am idea
;-) BTW: This is how flit does it [3].
Best regards
Philip
[1] https://github.com/takluyver/flit/blob/master/flit/install.py#L404
[2]
https://salsa.debian.org/python-team/tools/dh-python/-/blob/master/dhpython/build/plugin_flit.py#L78
[3] https://github.com/takluyver/flit/blob/master/flit/install.py#L356-L359
