erpl-pyrfc

A drop-in replacement for SAP's archived PyRFC, built on erpl-proto — a pure-Rust implementation of the RFC protocol.

pip uninstall pyrfc
pip install erpl-pyrfc

Your code does not change:

from pyrfc import Connection

with Connection(ashost="sap.example.com", sysnr="00", client="001",
                user="RFCUSER", passwd="...", lang="EN") as conn:
    print(conn.call("STFC_CONNECTION", REQUTEXT="hello")["ECHOTEXT"])

Why

PyRFC is archived and frozen against one patch level of the SAP NW RFC SDK — a licence-gated download of roughly 30 MB of C libraries and ICU that may not be redistributed, which is why PyRFC never shipped Linux wheels.

erpl-pyrfc has no SDK dependency and no ICU. The wheel is self-contained: it works in a bare container with nothing else installed and no environment variables set.

Version

Calendar versioning, YYYY.M.D, as the erpl projects use: a release tells you when it was cut, which for a library tracking someone else's wire protocol is the useful fact. A second release on one day takes a .N suffix.

Two namespaces, one package

import pyrfc is the compatibility surface. import erpl_pyrfc is the same objects under a name that says which implementation is running. Both ship in the same wheel.

Do not install SAP's pyrfc distribution alongside this one — both own the pyrfc/ directory, and pip cannot prevent the collision. Importing pyrfc will tell you so, with the command that fixes it.

What is and is not supported

See MIGRATION.md — one page telling you whether your code will run, including the deliberate non-goals and the handful of places behaviour differs.

Licence

BUSL-1.1, inherited from erpl-proto, and a change from PyRFC's Apache-2.0. If you are embedding this package in a product you distribute, read LICENSE and the Additional Use Grant before you ship: the terms are not the ones PyRFC came with, and that difference is deliberate rather than an oversight. For a package-specific grant, contact DataZoo.

Development

uv venv .venv
VIRTUAL_ENV=$PWD/.venv uvx maturin develop --release

# Offline tests only:
.venv/bin/python -m pytest tests/

# Against a live system (skips cleanly without credentials):
SAP_USER=DEVELOPER SAP_PASSWD=... .venv/bin/python -m pytest tests/

Live tests read SAP_ASHOST, SAP_SYSNR, SAP_CLIENT, SAP_LANG and skip with a SKIP(live): line when SAP_USER/SAP_PASSWD are unset, matching the convention in the Rust crates.

Some data-type and server tests need ABAP fixtures on the system. They are created by one script, deployed without Eclipse or SAP GUI — see abap/README.md. Tests needing them skip cleanly when they are absent.

Project links

Data verified by PyPI on Aug 29, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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  • Released:
Newer release available (2026.9.3)

1 maintainer

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Avatar for datazoode from gravatar.com datazoode

Credits

Author: DataZoo GmbH

GitHub Statistics

Data verified by PyPI on Aug 29, 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

BUSL-1.1

Requires

Python >=3.9

Tags

sap rfc abap pyrfc

Classifiers

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2026.9.3

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2026.9.2.1

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2026.9.2

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2026.9.1

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2026.8.31

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2026.8.30

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2026.8.29.1

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This release

2026.8.29 This release

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