Calling Python Script from VBA, and waiting for script to finish

[SkywardPalm]

I am attempting to call a python script from VBA and wait for the script to finish before continuing with the macro. However, It doesn't seem to be calling the python script.. any ideas what I may be doing wrong?

Code I have so far:

Dim objShell As Object
Dim PythonExe, PythonScript As String

Set objShell = VBA.CreateObject("WScript.Shell")
Dim waitOnReturn As Boolean: waitOnReturn = True
Dim windowStyle As Integer: windowStyle = 0

PythonExe = """C:\Python\Python39\python.exe"""
PythonScript = "C:\Users\Me\PycharmProjects\Automation\Matching.py"

objShell.Run "cmd.exe /S /C" & PythonExe & PythonScript, vbHide, windowStyle, waitOnReturn

 

[shknbk2]

It could be a spacing issue: both after the /C and between PythonExe and PythonScript.

Also, you have 4 parameters: I'm not sure that vbHide is what you want since you're also using windowStyle. Either one should work because vbHide is 0, but you have too many arguments and waitOnReturn should be the third.

objShell.Run "cmd.exe /s /c " & PythonExe & " " & PythonScript, windowStyle, waitOnReturn

 

[SkywardPalm]

It could be a spacing issue: both after the /C and between PythonExe and PythonScript.

Also, you have 4 parameters: I'm not sure that vbHide is what you want since you're also using windowStyle. Either one should work because vbHide is 0, but you have too many arguments and waitOnReturn should be the third.

objShell.Run "cmd.exe /s /c " & PythonExe & " " & PythonScript, windowStyle, waitOnReturn

I'm attempting to try out the solution you provided, however I'm stuck in a catch-22 where my python script won't write to an open excel file, but I need the excel file open to run the macro.. Here is a link to the problem I am having if you wouldn't mind taking a look (assuming you know python)

 

[Joe4]

I'm attempting to try out the solution you provided, however I'm stuck in a catch-22 where my python script won't write to an open excel file, but I need the excel file open to run the macro.. Here is a link to the problem I am having if you wouldn't mind taking a look (assuming you know python)

How about having two separate Excel files:
- one containing your VBA code
- one is the workbook you want to write the data to

 

[SkywardPalm]

This seemed to work for me! Thanks for the advice

'
' Run Python Script
'
    Set objShell = VBA.CreateObject("WScript.Shell")
    PythonExe = """C:\Python\Python39\python.exe"""
    PythonScript = "C:\Python\PycharmProjects\Automation\AutomationMatching.py"
    objShell.Run PythonExe & " " & PythonScript, windowStyle, waitOnReturn

 

[SkywardPalm]

How about having two separate Excel files:
- one containing your VBA code
- one is the workbook you want to write the data to

I solved this issue I was having, I was trying to write to an open excel file with Openpyxl, which does not allow this. When I swapped to xlwings it ran smoothly and wrote to the open excel sheet. Thanks for the suggestion though, I was avoiding the extra work of opening and closing files (or writing to multiple books)

 

[Joe4]

I am not familiar with "Openpyxl", but glad you got it figured out.