High Level Expressions for Dask
Project description
Dask Expressions
Dask DataFrames with query optimization.
This is a rewrite of Dask DataFrame that includes query optimization and generally improved organization.
More in our blog posts:
Example
import dask_expr as dx
df = dx.datasets.timeseries()
df.head()
df.groupby("name").x.mean().compute()
Query Representation
Dask-expr encodes user code in an expression tree:
>>> df.x.mean().pprint()
Mean:
Projection: columns='x'
Timeseries: seed=1896674884
This expression tree will be optimized and modified before execution:
>>> df.x.mean().optimize().pprint()
Div:
Sum:
Fused(375f9):
| Projection: columns='x'
| Timeseries: dtypes={'x': <class 'float'>} seed=1896674884
Count:
Fused(375f9):
| Projection: columns='x'
| Timeseries: dtypes={'x': <class 'float'>} seed=1896674884
Stability
This is the default backend for dask.DataFrame since version 2024.3.0.
API Coverage
Dask-Expr covers almost everything of the Dask DataFrame API. The only missing features are:
melt- named GroupBy Aggregations
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
dask-expr-1.0.tar.gz
(163.7 kB
view details)
Built Distribution
dask_expr-1.0-py3-none-any.whl
(178.4 kB
view details)
File details
Details for the file dask-expr-1.0.tar.gz.
File metadata
- Download URL: dask-expr-1.0.tar.gz
- Upload date:
- Size: 163.7 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/5.0.0 CPython/3.11.8
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | cbe1feacc99b6613c32551f8663f0adf4582a2446762e34c7d988a71d2c22e23 |
|
| MD5 | 33cb63c6da5bc5aa199b0623639c8a37 |
|
| BLAKE2b-256 | 4b4c4def29b955110c68a97ab408802dcbe5560f54194be6e493c8accc9b0482 |
Provenance
File details
Details for the file dask_expr-1.0-py3-none-any.whl.
File metadata
- Download URL: dask_expr-1.0-py3-none-any.whl
- Upload date:
- Size: 178.4 kB
- Tags: Python 3
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/5.0.0 CPython/3.11.8
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | aebc2f1720a84380fd872af1625e85287e21d57dfba077b2135e6c03c26a80a5 |
|
| MD5 | 96463601422dca0065cb197fa0c09f10 |
|
| BLAKE2b-256 | 8f9453f9a046ef09080a09f15b3d07a2a159befceffc6dbee7227dcfa61cf79f |
