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Asynchronous, non-blocking SAP NW RFC SDK bindings for Python
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SAP NW RFC SDK Client for Python


Asynchronous, non-blocking SAP NetWeawer RFC SDK client bindings for Python.


  • Stateless and stateful connections (multiple function calls in the same ABAP session (same context))
  • Sequential and parallel calls, using one or more clients
  • Automatic conversion between Python and ABAP datatypes
  • Extensive unit tests

Supported platforms


SAP NW RFC SDK C++ binaries must be downloaded (SAP partner or customer account required) and locally installed (installation instructions). More information on SAP NW RFC SDK section on SAP Support Portal.

SAP NW RFC Library is fully backwards compatible, supporting all NetWeaver systems, from today S4, down to R/3 release 4.6C. Using the latest version is recommended.


On Windows platforms the Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package (KB973544), or newer, must be installed, per SAP Note 1375494 - SAP system does not start after applying SAP kernel patch.


sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setstealthmode off
  • Remote paths must be set in SAP NWRFC SDK for macOS: node-rfc/#58


After the SAP NW RFC SDK installed on your system, you can pip install the pyrfc package for your platform from the dist folder:


pip install pyrfc-1.9.94-cp37-cp37m-macosx_10_14_x86_64.whl

Alternatively, or if the pyrfc package for your platform not provided, build the package from source on your system and pip install:

git clone
cd PyRFC
python bdist_wheel
pip install dist/pyrfc-1.9.94-cp37-cp37m-macosx_10_14_x86_64.whl
# set ABAP system parameters in test/pyrfc.cfg
pytest -vv

See also the the pyrfc documentation, complementing SAP NW RFC SDK documentation.

Getting started

Note: The package must be installed before use.

In order to call remote enabled ABAP function module (ABAP RFM), first a connection must be opened.

>>> from pyrfc import Connection
>>> conn = Connection(ashost='', sysnr='00', client='100', user='me', passwd='secret')

Using an open connection, remote function modules (RFM) can be invoked:

>>> result ='STFC_CONNECTION', REQUTEXT=u'Hello SAP!')
>>> print result
{u'ECHOTEXT': u'Hello SAP!',
 u'RESPTEXT': u'SAP R/3 Rel. 702   Sysid: ABC   Date: 20121001   Time: 134524   Logon_Data: 100/ME/E'}

Finally, the connection is closed automatically when the instance is deleted by the garbage collector. As this may take some time, we may either call the close() method explicitly or use the connection as a context manager:

>>> with Connection(user='me', ...) as conn:
    # connection automatically closed here

Alternatively, connection parameters can be provided as a dictionary:

>>> def get_connection(conn_params):
...     """Get connection"""
...     print 'Connecting ...', conn_params['ashost']
...     return Connection(**conn_param)

>>> from pyrfc import Connection

>>> abap_system = {
...    'user'      : 'me',
...    'passwd'    : 'secret',
...    'ashost'    : '',
...    'saprouter' : '/H/',
...    'sysnr'     : '00',
...    'client'    : '100',
...    'trace' : '3', #optional, in case you want to trace
...    'lang'      : 'EN'
... }

>>> conn = get_connection(abap_system)
Connecting ...


See also the the pyrfc documentation, complementing SAP NW RFC SDK documentation.

Known Issues

  • Python 2 will not be maintained past 2020

  • Unicode path fix required for build from source on macOS

How to obtain support

If you encounter an issue or have a feature request, you can create a ticket.

Check out the SCN Forum (search for "pyrfc") and stackoverflow (use the tag "pyrfc"), to discuss code-related problems and questions.


Copyright (c) 2013 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file.

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