Unable to Install pyrfc in Python 3.9 or 3.12 (Previously Worked in Virtual Environment)

[sandipsable506]

I am trying to install pyrfc in a new virtual environment using Python 3.9 and 3.12, but I keep encountering installation errors.

Previously, I had successfully installed and used pyrfc, but after deleting my virtual environment and creating a new one, I am unable to reinstall it.

Steps Taken:

• Installed SAP NetWeaver RFC SDK and set SAPNWRFC_HOME environment variable.
• Installed Microsoft Visual C++ Redistributable (for Windows).
• Tried installing using pip install pyrfc and pip install --extra-index-url https://sap.github.io/pyrfc pyrfc, but both failed.

Error Message (Screenshot Attached):

System Information:

• OS: (Windows)
• Python Version: 3.9 / 3.12
• Pip Version: pip 25.0.1
• SAP NetWeaver RFC SDK Version: nwrfc750P_12-70002755

Questions:

• How can I resolve this installation issue?
• Is there a specific version of pyrfc that works with Python 3.9+?
• Are there any additional dependencies required?

Would appreciate any guidance on resolving this. Thanks!

[sandipsable506]

Problem:

I was trying to install pyrfc using pip install pyrfc, but I kept getting the following error:

ERROR: Could not find a version that satisfies the requirement pyrfc (from versions: none)
ERROR: No matching distribution found for pyrfc

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✅ Solution (Worked for Python 3.12)

1️⃣ Download the Compatible .whl File

I manually downloaded the correct .whl file from the [SAP PyRFC Releases](https://github.com/SAP/PyRFC/releases) page.
For Python 3.12, I chose the appropriate file:

pyrfc-x.x.x-cp312-cp312-win_amd64.whl

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2️⃣ Install Using pip

After downloading, I navigated to the folder containing the .whl file and ran:

pip install path\to\pyrfc-x.x.x-cp312-cp312-win_amd64.whl

Example:

pip install D:\Downloads\pyrfc-2.3.0-cp312-cp312-win_amd64.whl

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3️⃣ Verify the Installation

After successful installation, I verified using:

import pyrfc
print(pyrfc.__version__)

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Troubleshooting Steps (If You Face Issues)

1. Ensure SAP NWRFC SDK is Installed Correctly

   • The SDK path should be set in the environment variables:

   setx SAPNWRFC_HOME "C:\sap\nwrfcsdk"

   • Also, check if it's in the system PATH:

   echo %PATH% | findstr "nwrfcsdk"

   Expected output should contain:

   C:\sap\nwrfcsdk\lib
   

2. Upgrade pip before installation:

   pip install --upgrade pip

3. Try a Virtual Environment:

   python -m venv myenv
   myenv\Scripts\activate
   pip install pyrfc

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Final Notes

This method successfully resolved my issue on Python 3.12. If you're facing similar problems, I recommend installing PyRFC using a .whl file instead of relying on pip install pyrfc.

Hope this helps! 🚀

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