{"library":"pint","title":"Pint: Physical Quantities","description":"Pint is a Python package designed for defining, operating, and manipulating physical quantities. It allows for arithmetic operations between numerical values and units of measurement, as well as conversions between different units. The library includes a comprehensive list of physical units, prefixes, and constants, and its modular design enables users to extend or rewrite unit definitions. It integrates well with numerical libraries like NumPy and Pandas (via `pint-pandas`) and is actively maintained, with the latest stable version 0.25.3 released on March 19, 2026.","language":"python","status":"active","last_verified":"Wed May 13","install":{"commands":["pip install pint"],"cli":null},"imports":["from pint import UnitRegistry"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"from pint import UnitRegistry\n\n# Initialize the UnitRegistry, which stores unit definitions and handles conversions\nureg = UnitRegistry()\n\n# Define quantities using numerical values and units from the registry\ndistance = 24.0 * ureg.meter\ntime = 8.0 * ureg.second\n\n# Perform calculations; Pint automatically handles unit propagation\nspeed = distance / time\nprint(f\"Calculated Speed: {speed}\")\n\n# Convert quantities to different compatible units\nspeed_kmh = speed.to(ureg.kilometer / ureg.hour)\nprint(f\"Speed in kilometers per hour: {speed_kmh}\")\n\n# Quantities can also be created by parsing strings\nforce = ureg.Quantity(\"100 N\")\nprint(f\"Force from string: {force}\")","lang":"python","description":"Initialize a `UnitRegistry` to define and manage units. Use the registry to create `Quantity` objects, perform arithmetic operations, and convert units. 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