On Wed, 9 Jul 2025, Miro Hrončok via python-devel wrote:
On 09. 07. 25 4:31, Scott Talbert via python-devel wrote:
Is there any way to use the pyproject macros when setup.py isn't in the
root directory?
I maintain a couple of packages where this is the case - one where there
are actually two PyPI packages built from the same source package, and
another where the Python package is in a subdirectory because it's bindings
for a C library that is also built.
When I try, I get this error during build:
+ echo 'ERROR: Neither pyproject.toml nor setup.py found, consider using
%pyproject_buildrequires -N <requirements-file> if this is not a Python
package.'
ERROR: Neither pyproject.toml nor setup.py found, consider using
%pyproject_buildrequires -N <requirements-file> if this is not a Python
package.
There aren't requirements files in the upstream packages. But I guess I
could make a downstream one?
This is only useful when you want to use an exiting requirements file in a
piece of software that is *not* a Python package. Which the macro thinks is
your case, as it did not find a pyproject.toml or a setup.py file.
To locate the files, simply cd to the directory before using the macro.
%generate_buildrequires
cd subdirectory
%pyproject_buildrequires
%build
...
cd subdirectory
%pyproject_wheel
Note: Make sure not to use pushd or cd - without >&2 in
%pyproject_buildrequires, as those commands put output on the stdout and all
stdout is considered as generated BuildRequires.
Thanks for these hints. This all worked.
The one thing - %pyproject_save_files can't work in the case of building
multiple wheels in the same package, right?
Scott
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