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

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Newer release available (2026.9.3)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for datazoode from gravatar.com datazoode

Credits

Author: DataZoo GmbH

License

BUSL-1.1

Requires

Python >=3.9

Tags

sap rfc abap pyrfc

Classifiers

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