You can call a Python function from Excel VBA using the

Shell

function to execute a Python script or by using the

RunPython

method available in newer versions of Excel. Here's how you can do it using both methods:


1. **Using Shell Function**:

```vba

Sub CallPythonScript()

    Dim pythonScriptPath As String

    Dim pythonExePath As String

    Dim pythonCommand As String

    ' Path to your Python script

    pythonScriptPath = "C:pathtoyourpythonscript.py"

    ' Path to your Python executable

    pythonExePath = "C:pathtopythonpython.exe"

    ' Construct the Python command

    pythonCommand = pythonExePath & " " & pythonScriptPath

    ' Execute the Python script

    Shell pythonCommand, vbNormalFocus

End Sub

```

Replace `"C:pathtoyourpythonscript.py"` with the path to your Python script and `"C:pathtopythonpython.exe"` with the path to your Python executable.

2. **Using RunPython Method**:

```vba

Sub CallPythonFunction()

    Dim pyModule As Object

    Dim pyFunction As Object

    ' Load the Python module containing the function

    Set pyModule = Application.Run("pythontools.load", "C:pathtoyourpythonscript.py")

    ' Call the Python function

    Set pyFunction = pyModule.RunPythonFunction("your_python_function_name", "argument1", "argument2")

    ' Display the result

    MsgBox pyFunction

End Sub

```

Make sure you have enabled the "Python for Excel" add-in in Excel to use the `RunPython` method. Replace `"C:pathtoyourpythonscript.py"` with the path to your Python script and `"your_python_function_name"` with the name of the function you want to call.

Choose the method that best fits your requirements and the version of Excel you are using.