npyfile is a a package that allows you to continuously write arrays to a .npy file. You can use it like a standard Python file with the well-known context manager.
Warning: Due to the internal structure of .npy files, the arrays must have the same shape & dtype.
Example
Generate some artificial dummy data, e.g. images, & write them into a temporary file. A real world scenario reflecting this is the continuous arrival of new images from a camera.
import pathlib
import tempfile
tmp_dir = tempfile.TemporaryDirectory()
outfile = pathlib.Path(tmp_dir.name) / 'images.npy'
images = np.random.randint(low=0, high=255, size=(10,640,480,3))
with NpyFile(outfile) as file:
for img in images:
file.write(img)
np.testing.assert_array_equal(images, np.load(outfile))
tmp_dir.cleanup()Credits
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Release files for npyfile 1.0.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| npyfile-1.0.0.tar.gz | 10.5 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| npyfile-1.0.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size:16.0 kB
Release files / npyfile-1.0.0.tar.gz
| Download URL | npyfile-1.0.0.tar.gz |
|---|---|
| Size | 10.5 kB |
| Tags | Source |
|
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Release files / npyfile-1.0.0-py3-none-any.whl
| Download URL | npyfile-1.0.0-py3-none-any.whl |
|---|---|
| Size | 5.5 kB |
| Tags | Python 3 |
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twine/3.3.0 pkginfo/1.6.1 requests/2.25.1 setuptools/49.1.3 requests-toolbelt/0.9.1 tqdm/4.55.1 CPython/3.9.1
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