Numexpr Python Packages

colss

colss is a lightweight expression evaluator for NumPy, Pandas, and Polars. It simplifies mathematical expressions while preserving memory efficiency and execution speed.

easyquery

Create easy-to-use Query objects that can apply on NumPy structured arrays, astropy Table, and Pandas DataFrame

a-pandas-ex-fastloc

Up to 25 times faster than df.loc by combining np.select and numexpr.evaluate (works with utf-8)

a-pandas-ex-numexpr

Pandas DataFrame/Series operations 8 times faster (or even more)

a-pandas-ex-image-tools

Uses pandas/numpy/numexpr for operations on pictures - very fast

a-pandas-ex-split-on-common-char

Splits the elements in a Series using a common separator character and returns a DataFrame

tmplmatching

Fast multitemplate matching with support for different sizes using numexpr / cupy / fftw / scipy / multiprocessing

intersectioncalc

Finds rectangle intersections

locate-pixelcolor

Locate RGB values in a picture! 40x faster than PIL, 5x faster than numpy

whacamolefinder

Get the difference between 2 images

stridessequencefinder

finds sequences [3, 4, 5] in NumPy arrays [1, 2, 3, 4, 5, 1, 2, 3, 4, 5] - result: [2 7]

stridesduplicatefinder

Calculate overlapping values between two arrays and return the results as a DataFrame

numpyasciiart

Converts an image to ASCII art using numpy / numexpr / cv2

farbencounter

Counts the unique colors in an image and returns a DataFrame with color counts and optional color coordinates.