To whom it may concern, Serf 1.3.9 cannot be built on Devuan Beowulf (like Debian 10) because the build relies on the presence of an executable called "python". This executable cannot be relied on anymore to exist.
You can see the error message and the rationale for why this executable is unlikely to exist in Spack issue 25408: https://github.com/spack/spack/issues/25408 The issue is independent of Spack; there are at least four Python files that rely on the presence of the "python" executable: * build/check.py * build/gen_def.py * test/certs/create_certs.py * buckets/hpack_huffman.py Christoph Conrads
