Integrating Python Code in NI DIAdem

The following table determines which version of Python is compatible with which NI DIAdem version.

For DIAdem versions up to 2022 Q4, DIAdem installs Python. As of DIAdem 2023 Q2, DIAdem no longer installs Python. If you want to use Python scripts in DIAdem, install a Python version supported by DIAdem, which can be found at https://www.python.org/ if you don't have it installed. 

Beginning with 2025 Q2, DIAdem supports virtual environments created with venv.

NI has tested virtualenv versions 20.26.2, 20.29.1, and 20.29.3. While we expect newer versions to work, users must test DIAdem against new versions.

The three methods for installing additional python modules to NI DIAdem are, Interactively, Programmatically and Manually. 

Interactively

This method interacts with the built in functionality of NI DIAdem.

1. Open NI DIAdem.
2. Navigate to Settings >> DIAdem Settings >> Script.
3. Enter the Python module name in the corresponding text box.
4. Click Install/ Update Module.

Programmatically

This method uses a script to achieve the same result by calling the Command Prompt and running the pip install command. 

For a Python script, you would use the command: 

subprocess.run(["pip", "install", "<ModuleName>"])

If it is necessary to display the module installation output in NI DIAdem, you can use the following example where the Panda module is being installed (besides the two lines of code, an import has been added at the top): 

Test = subprocess.run([“pip”, “install”, “numpy”],stdout=subprocess.PIPE, text=True) Print(test.stdout)

Manually

This method uses the Command Prompt interactively, without opening NI DIAdem.

1. Right-click the Start charm.
2. Type cmd, right-click the Command Prompt tile and select Run as administrator.
3. Navigate to the DIAdem installation of Python using cd C:\Program Files\NationalInstruments\Shared\Skyline\Python.
4. Navigate into the Python <version> folder, then into the Scripts Folder.
5. Perform any necessary install using pip install moduleName.

• How Can I Execute an External Program from a NI DIAdem Script?
• How To Apply Changes on a Python Script Without Restarting NI DIAdem?
• Accessing the Output of an External Command Executed in a NI DIAdem Script
• Error Importing Python Module in NI DIAdem SCRIPT
• External Link: Python