PyPI recent updates for penzene https://pypi.org/project/penzene/ Recent updates to the Python Package Index for penzene en 0.4.0 https://pypi.org/project/penzene/0.4.0/ ChemDraw-style 2D chemical structures from Python: the Penzene drawing engine Thu, 24 Sep 2026 12:46:36 GMT 0.5.0 https://pypi.org/project/penzene/0.5.0/ ChemDraw-style 2D chemical structures from Python: the Penzene drawing engine Thu, 24 Sep 2026 10:13:19 GMT