Numpy has, for no apparent reason, decided to change the copy keyword behavior in np.array and np.asarray, as described here: https://numpy.org/devdocs/numpy_2_0 ...

Python is convenient and flexible, yet notably slower than other languages for raw computational speed. The Python ecosystem has compensated with tools that make crunching numbers at scale in Python ...

Discovered this when plotting TQU maps and saving them to file using enplot.write. The array itself remains unaffected, only the plot flips its x-parity. from pixell import enmap, enplot, curvedsky, ...