A Python datalake client.
Project description
Ness
A Python datalake client.
Requirements
Installation
pip install pyarrow ness
Quickstart
import ness
dl = ness.dl(bucket="mybucket", key="mydatalake")
df = dl.read("mytable")
Sync
# Sync all tables
dl.sync()
# Sync a single table
dl.sync("mytable")
# Sync and read a single table
df = dl.read("mytable", sync=True)
Format
Specify the input data source format, the default format is parquet:
import ness
dl = ness.dl(bucket="mybucket", key="mydatalake", format="csv")
AWS Profile
Files are synced using default AWS profile, you can configure another one:
import ness
dl = ness.dl(bucket="mybucket", key="mydatalake", profile="myprofile")
Command Line
Usage: ness sync [OPTIONS] S3_URI
Options:
--format TEXT Data lake source format.
--profile TEXT AWS profile.
--table TEXT Table name to sync.
--help Show this message and exit.
ness sync bucket/key --table mytable
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