Deployment fails when some subdir exists

[andre-merzky]

thinkie  merzky  ~   $ cd /tmp
thinkie  merzky  /tmp   $ git clone git@github.com:radical-cybertools/ROSE.git
Cloning into 'ROSE'...
[...]

thinkie  merzky  /tmp   $ cd ROSE
thinkie  merzky  /tmp/ROSE  [main] $ python3 -m venv ve3
thinkie  merzky  /tmp/ROSE  [main] $ . ve3/bin/activate
(ve3)  thinkie  merzky  //tmp/ROSE  [main] $ pip install .
Processing /tmp/ROSE
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [14 lines of output]
error: Multiple top-level packages discovered in a flat-layout: ['ve3', 'rose'].

To avoid accidental inclusion of unwanted files or directories,
setuptools will not proceed with this build.

If you are trying to create a single distribution with multiple packages
on purpose, you should not rely on automatic discovery.
Instead, consider the following options:

1. set up custom discovery (`find` directive with `include` or `exclude`)
2. use a `src-layout`
3. explicitly set `py_modules` or `packages` with a list of names

To find more information, look for "package discovery" on setuptools docs.
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

This is the reason why the other radical modules place the source tree under src/ (see point 2 in the message above). I would recommend the same.