NOTE!

The core components of the arraymap package (AutoMap, FrozenAutoMap) have been integrated into arraykit:

https://github.com/static-frame/arraykit

As future development will happen there, this repository is now archived.

arraymap

The ArrayMap library provides dictionary-like lookup from NumPy array values to their integer positions. The hash table design and C implementation is based on [AutoMap](https://github.com/brandtbucher/automap), with extensive additions for direct support of NumPy arrays.

Code: https://github.com/static-frame/arraymap

Packages: https://pypi.org/project/arraymap

Dependencies

ArrayMap requires the following:

• Python >= 3.9
• NumPy >= 1.19.5

What is New in ArrayMap

0.4.0

Now building wheels for Python 3.13.

0.3.0

Now building with NumPy 2.0.

0.2.2

Restored functional wheels for Mac OS x86_64.

0.2.1

Restored functional wheels for Mac OS x86_64.

0.2.0

Now building wheels for 3.12.

Now building functional wheels for Mac OS arm64 / Apple Silicon.

0.1.9

Improvements to PyObject struct layout and other internal refactoring.

0.1.8

Corrected issue when using get_all() and get_any() on FrozenAutoMap backed by numerical arrays with less than 64-bit element size.

0.1.7

Corrected issue when creating a FrozenAutoMap from a datetime64 array that has duplicates.

0.1.6

Implemented get_all() and get_any() for optimized lookup of multiple keys from arrays or lists.

Implemented full support for np.datetime64 arrays.

0.1.5

Improved handling for Unicode elements that contain non-terminal NULL strings.

0.1.4

Corrected comparison in lookup of Unicode elements.

0.1.3

Updated classifiers, install_requires with setuptools.

0.1.2

Corrected segfault resulting from initialization from generators that raise.

0.1.1

Added __version__ to module; releasing wheels.

0.1.0

Initial release with NumPy integration.