PyPI recent updates for sign-crn https://pypi.org/project/sign-crn/ Recent updates to the Python Package Index for sign-crn en 2.4 https://pypi.org/project/sign-crn/2.4/ SageMath package for (chemical) reaction networks using sign vector conditions aichmayr@mathematik.uni-kassel.de Wed, 20 May 2026 14:09:06 GMT 2.2 https://pypi.org/project/sign-crn/2.2/ SageMath package for (chemical) reaction networks using sign vector conditions aichmayr@mathematik.uni-kassel.de Tue, 11 Nov 2025 11:53:25 GMT