Python extensions for PRQL
Project description
pyprql
pyprql contains:
- pyprql.pandas_accessor — Pandas integration for PRQL
- pyprql.magic — IPython magic for connecting to databases using
%%prql - pyprql.compile — An export of
prql-python'scompilefunction
For docs, check out the pyprql docs, and the PRQL Book.
Installation
pip install pyprql
Usage
Pandas integration
import pandas as pd
import pyprql.pandas_accessor
df = (...)
results_df = df.prql.query("select {age, name, occupation} | filter age > 21")
Jupyter Magic
In [1]: %load_ext pyprql.magic
In [2]: %prql postgresql://user:password@localhost:5432/database
In [3]: %%prql
...: from p
...: group categoryID (
...: aggregate {average unitPrice}
...: )
In [4]: %%prql results <<
...: from p
...: aggregate {min unitsInStock, max unitsInStock}
Compilation
This library exposes prql-python.compile, so we can simply generate SQL:
import pyprql
pyprql.compile("from artists | select track")
print(pyprql.compile("from artists | select track"))
...returns...
SELECT
track
FROM
artists
For context, prql-python is the Python binding for prql-compiler, so only
contains functions for compilation; and this library offers broader python
integrations and tooling.
Support
This project was created by @charlie-sanders & @rbpatt2019 and is now maintained by the broader PRQL team.
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