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  • Getting Started
  • User Guide
  • Development
  • Project details
  • Tutorials
  • GitHub

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Data structures and transformations

  • Constants (astropy.constants)
  • Units and Quantities (astropy.units)
    • Quantity
    • Unit-Aware Type Annotations
    • Standard Units
    • Combining and Defining Units
    • Decomposing and Composing Units
    • Magnitudes and Other Logarithmic Units
    • Structured Units
    • String Representations of Units and Quantities
    • Equivalencies
    • Physical Types
    • Using Prior Versions of Constants
    • Low-Level Unit Conversion
    • Reference/API
  • N-Dimensional Datasets (astropy.nddata)
  • Data Tables (astropy.table)
  • Time and Dates (astropy.time)
  • Time Series (astropy.timeseries)
  • Astronomical Coordinate Systems (astropy.coordinates)
  • World Coordinate System (astropy.wcs)
  • Models and Fitting (astropy.modeling)
  • Uncertainties and Distributions (astropy.uncertainty)

Files, I/O, and Communication

  • Unified File Read/Write Interface
  • FITS File Handling (astropy.io.fits)
  • ASCII Tables (astropy.io.ascii)
  • VOTable XML Handling (astropy.io.votable)
  • Miscellaneous: HDF5, YAML, Parquet, pickle (astropy.io.misc)
  • SAMP (Simple Application Messaging Protocol) (astropy.samp)

Computations and utilities

  • Cosmological Calculations (astropy.cosmology)
  • Convolution and Filtering (astropy.convolution)
  • IERS data access (astropy.utils.iers)
  • Data Visualization (astropy.visualization)
  • Astrostatistics Tools (astropy.stats)

Nuts and bolts

  • Configuration System (astropy.config)
  • I/O Registry (astropy.io.registry)
  • Logging system
  • Python warnings system
  • Astropy Core Package Utilities (astropy.utils)
  • Astropy Glossary
  • User Guide
  • Reference/API
  • QuantityInfoBase

QuantityInfoBase#

class astropy.units.quantity.QuantityInfoBase(bound=False)[source]#

Bases: ParentDtypeInfo

previous

SpecificTypeQuantity

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QuantityInfo
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