siona

siona is a co-name for srmech (Stored-Relationship Mechanism). It is a metadata-only metapackage: it ships no code of its own — its only job is to pull in srmech (>=0.4.6), whose wheel bundles the import siona alias. After install, import siona resolves to exactly the same objects as import srmech.

pip install siona      # installs srmech>=0.4.6; the alias comes from srmech's wheel

import siona
print(siona.__version__)               # == srmech.__version__

from siona.amsc import cascade         # same module object as srmech.amsc.cascade
cascade.chiral_flip([1, 2, 3])         # -> [3, 2, 1]

siona and srmech are interchangeable import names for one codebase. There is no forked logic anywhere — the native C library, the 14-class A–N primitive vocabulary, the QM/QFT/SM operations layer, the AMSC provenance framework, the signal-processing surface, and the tool-schema all live in srmech, which remains the single source of truth. The siona/ package (which mirrors every srmech.* submodule under siona.*) is shipped inside the srmech wheel from srmech v0.4.6 onward, so pip install srmech alone already gives you import siona. This metapackage exists only so that pip install siona resolves to the same place.

Why metadata-only? If both siona and srmech shipped a siona/ directory, installing them together would collide on disk. Keeping siona/ solely in the srmech wheel means there is exactly one owner of the path, so pip install srmech siona is conflict-free.

• Canonical package: https://pypi.org/project/srmech/
• Source / issues: https://github.com/lemonforest/mlehaptics

License: GPL-3.0-or-later (same as srmech).