transferred

transferred

The most convenient data transfer tool.

transferred moves table-shaped data between systems. Blazing fast, no transformations supported — hand them over to someone else.

Install

pip install transferred

Requires Python 3.14.

Usage

from pathlib import Path

from transferred import FilesDestination, Parquet, PostgresSource, Transfer

source = PostgresSource(
    "postgres://user:pass@localhost:5432/db",
    table="public.cities",
)
destination = FilesDestination(
    Path("cities/"),
    format=Parquet(compression="zstd"),
)

report = Transfer(source, destination).run()

print(report)
# RunReport:
#   rows: 3
#   written: 1.16 KiB
#   duration: 2ms
#   written objects:
#     cities/part-00001.parquet

Swap either end for another source or destination — the middle stays the same. More in examples/.

Supported

Sources:

  • Parquet file — FilesSource
  • Postgres table — PostgresSource
  • DataFrames — polars or pandas DataFrame, a duckdb result, a pa.Table, pyarrow's RecordBatch or RecordBatchReader
  • Python iterables of dict / @dataclass / pydantic.BaseModel (requires pip install transferred[iterable])

Destinations:

  • Parquet file — FilesDestination (zstd / snappy / uncompressed)
  • Postgres table — PostgresDestination (full replace, swapped in one transaction)

BigQuery lands later. See PLAN.md.

Promises

  • ✅ Make data transfers as simple as it could be
  • 🚧 Enforce best practices by default
  • 🚧 Blazing fast
  • ✅ No OOMs!

License

MIT. See LICENSE.

Project links

Data verified by PyPI on Aug 14, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
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  • Released:
Newer release available (0.1.3)

1 maintainer

PyPI data
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Avatar for skatromb from gravatar.com skatromb

Credits

Author: Vania Livadnyi

GitHub Statistics

Data verified by PyPI on Aug 14, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python >=3.14

Provides Extra

arrow iterable

Tags

data-transfer etl arrow parquet

Classifiers

Report project as malware

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0.1.3

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