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PyRFC 适用于 Python 的异步、非阻塞 SAP NetWeaver RFC SDK 绑定

news 来源：原创 2024/9/20 2:04:35

Asynchronous, non-blocking SAP NetWeaver RFC SDK bindings for Python.
适用于 Python 的异步、非阻塞 SAP NetWeaver RFC SDK 绑定

Call for Maintainers

This project is currently looking for new maintainers. Please see this issue for details.

Features

Client and Server bindings
Automatic conversion between Python and ABAP datatypes
Stateless and stateful connections (multiple function calls in the same ABAP session / same context)
Sequential and parallel calls, using one or more clients
Throughput monitoring

Supported platforms

All platforms supported by SAP NWRFC SDK are supported by build from source installation (build instructions)
In addition, pre-built wheels are provided for Windows, Darwin and Ubuntu Linux, attached to PyRFC GitHub release
Docker containers: SAP fundamental-tools/docker
Linux wheels supported by build from source installation only
Pre-built portable Linux wheels
- are not supported, neither issues related to portable Linux wheels
- must not be distributed with embedded SAP NWRFC SDK binaries, only private use permitted
Ansible Module for use of SAP PyRFC
Microsoft IIS, see #359

Requirements

SAP NW RFC SDK 7.50 Patch Level 12

see SAP Note 3337381: SAP NetWeaver RFC SDK 7.50 -- Patch Level 12 for a list of bug fixes and enhancements made with this patch release.
Only the latest patch level is supported by SAP
The latest version is fully backwards compatible, from today S4, down to R/3 release 4.6C.
Can be downloaded from SAP Software Download Center of the SAP Support Portal, like described at SAP NetWeaver Remote Function Call (RFC) Software Development Kit (SDK).
If you are lacking the required authorization for downloading software from the SAP Service Marketplace, please follow the instructions of SAP Note 1037575 for requesting this authorization.

Linux

PyRFC is using source distribution (sdist) installation on Linux systems and Cython is required on Linux system to build the PyRFC package from source. See Installing Cython

Windows

Visual C++ Redistributable Package for Visual Studio 2013 is required for run-time, see SAP Note 2573790 - Installation, Support and Availability of the SAP NetWeaver RFC Library 7.50
Build toolchain for Python requires Microsoft C++ Build Tools, the latest version recommended
Due to a change introduced with Python 3.8 for Windows, PATH directories are no longer searched for DLL. The SAP NWRFC SDK lib path is no longer required on PATH, for Python >= 3.8.

macOS

Remote paths must be set in SAP NWRFC SDK for macOS: documentation
When the PyRFC is started for the first time, the popups may come-up for each NWRFC SDK library, to confirm the usage. If SAP NW RFC SDK is installed in admin folder, the app shall be first time started with admin privileges, eg. sudo -E

Docker

Docker container examples for Linux, Intel and ARM based Darwin: SAP/fundamental-tools/docker. SAP NWRFC SDK libraries are not included.

Getting started

Note: The package must be installed before use.

Call ABAP Function Module from Python

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

from pyrfc import Connection
conn = Connection(ashost='10.0.0.1', sysnr='00', client='100', user='me', passwd='secret')

# ABAP variables are mapped to Python variables
result = conn.call('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'}# ABAP structures are mapped to Python dictionaries
IMPORTSTRUCT = { "RFCFLOAT": 1.23456789, "RFCCHAR1": "A" }# ABAP tables are mapped to Python lists, of dictionaries representing ABAP tables' rows
IMPORTTABLE = []result = conn.call("STFC_STRUCTURE", IMPORTSTRUCT=IMPORTSTRUCT, RFCTABLE=IMPORTTABLE)print result["ECHOSTRUCT"]
{ "RFCFLOAT": 1.23456789, "RFCCHAR1": "A" ...}print result["RFCTABLE"]
[{ "RFCFLOAT": 1.23456789, "RFCCHAR1": "A" ...}]