Python Running an Excel Macro - python

I am trying to use python to run an excel macro and then close excel. I have the following:
import win32com.client
import os
xl = win32com.client.DispatchEx("Excel.Application")
wb = xl.workbooks.open("X:\Location\Location2\File1.xlsm")
xl.run("File1.xlsm!WorkingFull")
xl.Visible = True
wb.Close(SaveChanges=1)
xl.Quit
My script will Open and close fine if I take out the xl.run("File1.xlsm!WorkingFull")
When I run this I get the following error:
Traceback (most recent call last):
File "C:\Python27\File1.py", line 6, in
xl.run("File1.xlsm!WorkingFull")
File "", line 2, in run
com_error: (-2147352567, 'Exception occurred.', (0, u'Microsoft Excel', u"Cannot run the macro 'File1.xlsm!WorkingFull'. The macro may not be available in this workbook or all macros may be disabled.", u'xlmain11.chm', 0, -2146827284), None)
I have macros enabled and I know its in the workbook, what is the problem?

please see below the code for running an Excel macro using python. You can find this code in this Site - Link. Use this site for other references for excel, vba and python scripts which might be helpful in the future.
from __future__ import print_function
import unittest
import os.path
import win32com.client
class ExcelMacro(unittest.TestCase):
def test_excel_macro(self):
try:
xlApp = win32com.client.DispatchEx('Excel.Application')
xlsPath = os.path.expanduser('C:\test1\test2\test3\test4\MacroFile.xlsm')
wb = xlApp.Workbooks.Open(Filename=xlsPath)
xlApp.Run('macroName')
wb.Save()
xlApp.Quit()
print("Macro ran successfully!")
except:
print("Error found while running the excel macro!")
xlApp.Quit()
if __name__ == "__main__":
unittest.main()

Related

Can't save Excel file with win32com.client

When I try to save the file, it doesn't save and fails.
I get the error:
pywintypes.com_error: (-2147352567, 'Exception occurred.', (0, 'Microsoft Excel', 'Save method of Application class failed', 'xlmain11.chm', 0, -2146827284), None)
Not sure what I'm doing wrong here. Some other posts seem to be pretty old and not relevant.
I saw a post saying to use SaveAs() but that errors out and says AttributeError: <unknown>.SaveAs. Did you mean: 'Save'?
My code:
import os, os.path
import win32com.client
# path = (r'C:\Users\christiansanchez\Downloads\')
if os.path.exists("test_macro.xlsm"):
xl = win32com.client.Dispatch("Excel.Application")
xl.Workbooks.Open(os.path.abspath("test_macro.xlsm"))
xl.Application.Run("test_macro.xlsm!module1.test_macrob")
xl.Application.Save("test_macro.xlsm")
xl.Application.Quit("test_macro.xlsm")
else:
print("error")
As per the comments, assign a variable to the opened workbook, and call Save() on that:
import os, os.path
import win32com.client
# path = (r'C:\Users\christiansanchez\Downloads\')
if os.path.exists('test_macro.xlsm'):
xl = win32com.client.Dispatch('Excel.Application')
wb = xl.Workbooks.Open(os.path.abspath('test_macro.xlsm'))
xl.Run('test_macrob')
wb.Save()
xl.Quit()
else:
print("error")
Notes:
Macro names are at global scope in Excel, so unless you have two sheets with the same macro name open you don't need to fully qualify the macro name.
The variable xl already refers to an Application object: you don't need xl.Application

Macro does not execute completely when using python

When I run macro in Excel, the code executes completely. But the code is not completely done when I try to run macro using Python.
In the VBA code, I used this code to ignore all error triangles in each cell so the file created did not include these errors(image below).
enter image description here
But when I try to use macro in Python. The triangle errors occur, and I don't know why (Python code).
import os
import win32com.client as wincl
def runMacro(file_path):
if os.path.exists(file_path):
excel_macro = wincl.DispatchEx("Excel.Application")
workbook = excel_macro.Workbooks.Open(file_path)#,None,False)
try:
excel_macro.Application.Run("module1.create_WP")
workbook.Save()
except Exception as ex:
print(ex)
finally:
excel_macro.Application.Quit()
del excel_macro
path = "D:\OneDrive - Central Group\Khôi\Weekly performance\Original files\TOTAL2022(UPDT.).xlsm"
runMacro(path).
The triangle errors occur enter image description here
Can you try it this way and feed back results?
from __future__ import print_function
import unittest
import os.path
import win32com.client
class ExcelMacro(unittest.TestCase):
def test_excel_macro(self):
try:
xlApp = win32com.client.DispatchEx('Excel.Application')
xlsPath = os.path.expanduser('C:\\Excel.xlsb')
wb = xlApp.Workbooks.Open(Filename=xlsPath)
xlApp.Run('Macro1')
wb.Save()
xlApp.Quit()
print("Macro ran successfully!")
except:
print("Error found while running the excel macro!")
xlApp.Quit()
if __name__ == "__main__":
unittest.main()

Getting “com_error: (-2147221005, 'Invalid class string', None, None)” from the method dispatch(Excel.Application) from pywin32 in python

I am getting the below error while running the given code from Azure devops pipeline and the same code works fine when triggered from local virtual machine. Any help would be indeed appreciated!!!
Error:
com_error: (-2147221005, 'Invalid class string', None, None)
Versions:
pywin32 = 300,
Excel = WPS Office
Agent Type: Self hosted agent configured in C: drive which is running as a service.
from threading import Lock
import win32com.client as win32
from openpyxl import load_workbook
from pyexcelerate import Workbook, Color, Style, Fill
from win32com.client import Dispatch, DispatchEx
from xlrd import open_workbook
with lock:
while True:
try:
EP._filepath = filepath
EP._activesheet = open_workbook(filepath)
break
except:
ValueError
try:
xl = Dispatch('Excel.Application')
except:
xl = DispatchEx('Excel.Application')
finally:
xl = win32.gencache.EnsureDispatch('Excel.Application')
wb = xl.Workbooks.Open(filepath)
wb.Close(True)

VBA macro through Python script

I am trying to execute a macro through python script. When I run it first time it runs properly, but when I run it again after few minutes, it throws error as
File "<COMObject <unknown>>", line 2, in run pywintypes.com_error:
(-2147352567, 'Exception occurred.', (0, None, None, None, 0,
-2146827284), None)
My script:
import win32com.client as win32
import time
excel=win32.Dispatch("Excel.Application")
excel.visible=1
book=excel.Workbooks.open('C:\\Users\\C296442\\Documents\Application07012020.xlsm')
excel.application.run("Application07012020.xlsm!Sheet5.CommandButton12_Click")
I have found 2 ways to do this and both seem to work fine.
from __future__ import print_function
import unittest
import os.path
import win32com.client
class ExcelMacro(unittest.TestCase):
def test_excel_macro(self):
try:
xlApp = win32com.client.DispatchEx('Excel.Application')
xlsPath = os.path.expanduser('C:\\Users\\rshuell001\\Desktop\\Valuation Code Rollover.xlsb')
wb = xlApp.Workbooks.Open(Filename=xlsPath)
xlApp.Run('Macro1')
wb.Save()
xlApp.Quit()
print("Macro ran successfully!")
except:
print("Error found while running the excel macro!")
xlApp.Quit()
if __name__ == "__main__":
unittest.main()
import os
import win32com.client
#Launch Excel and Open Wrkbook
xl=win32com.client.Dispatch("Excel.Application")
xl.Workbooks.Open(Filename="C:\Full Location\To\excelsheet.xlsm") #opens workbook in readonly mode.
#Run Macro
xl.Application.Run("excelsheet.xlsm!modulename.macroname")
#Save Document and Quit.
xl.Application.Save()
xl.Application.Quit()
#Cleanup the com reference.
del xl

Unprotect an Excel file programmatically

We're getting an Excel file from a client that has open protection and Write Reserve protection turned on. I want to remove the protection so I can open the Excel file with the python xlrd module. I've installed the pywin32 package to access the Excel file through COM, and I can open it with my program supplying the two passwords, save, and close the file with no errors. I'm using Unprotect commands as described in MSDN network, and they're not failing, but they're also not removing the protection. The saved file still requires two passwords to open it after my program is done. Here's what I have so far:
import os, sys
impdir = "\\\\xxx.x.xx.x\\allshare\\IT\\NewBusiness\\Python_Dev\\import\\"
sys.path.append(impdir)
from UsefulFunctions import *
import win32com.client
wkgdir = pjoin(nbShare, 'NorthLake\\_testing')
filename = getFilename(wkgdir, '*Collections*.xls*')
xcl = win32com.client.Dispatch('Excel.Application')
xcl.visible = True
pw_str = raw_input("Enter password: ")
try:
wb = xcl.workbooks.open(filename, 0, False, None, pw_str, pw_str)
except Exception as e:
print "Error:", str(e)
sys.exit()
wb.Unprotect(pw_str)
wb.UnprotectSharing(pw_str)
wb.Save()
xcl.Quit()
Can anyone provide me the correct syntax for unprotect commands that will work?
This function works for me
def Remove_password_xlsx(filename, pw_str):
xcl = win32com.client.Dispatch("Excel.Application")
wb = xcl.Workbooks.Open(filename, False, False, None, pw_str)
xcl.DisplayAlerts = False
wb.SaveAs(filename, None, '', '')
xcl.Quit()
This post helped me a lot. I thought I would post what I used for my solution in case it may help someone else. Just Unprotect, DisaplyAlerts=False, and Save. Made it easy for me and the file is overwritten with a usable unprotected file.
import os, sys
import win32com.client
def unprotect_xlsx(filename):
xcl = win32com.client.Dispatch('Excel.Application')
pw_str = '12345'
wb = xcl.workbooks.open(filename)
wb.Unprotect(pw_str)
wb.UnprotectSharing(pw_str)
xcl.DisplayAlerts = False
wb.Save()
xcl.Quit()
if __name__ == '__main__':
filename = 'test.xlsx'
unprotect_xlsx(filename)
you can unprotect excel file sheets with python openpyxl module without knowing the password:
from openpyxl import load_workbook
sample = load_workbook(filename="sample.xlsx")
for sheet in sample: sheet.protection.disable()
sample.save(filename="sample.xlsx")
sample.close()
where parameter "filename" is the path of your excel file which in here i have used local dir path.
if you are on MacOS (or maybe Linux? not tested)
You have to install Microsoft Excel and xlwings
pip install xlwings
Then run this:
import pandas as pd
import xlwings as xw
def _process(filename):
wb = xw.Book(filename)
sheet = wb.sheets[0]
df = sheet.used_range.options(pd.DataFrame, index=False, header=True).value
wb.close()
return df
Resources:
Adapted from this script:
https://davidhamann.de/2018/02/21/read-password-protected-excel-files-into-pandas-dataframe/
xlwings documentation: https://docs.xlwings.org/en/stable/api.html
The suggestion from #Tim Williams worked. (Use SaveAs and pass empty strings for the Password and WriteResPassword parameters.) I used 'None' for the 'format' parameter after filename, and I used a new filename to keep Excel from prompting me asking if OK to overwrite the existing file. I also found that I did not need the wb.Unprotect and wb.UnprotectSharing calls using this approach.
Hey I tried the solution provided by #Enoch Sit
def Remove_password_xlsx(filename, pw_str):
xcl = win32com.client.Dispatch("Excel.Application")
wb = xcl.Workbooks.Open(filename, False, False, None, pw_str)
xcl.DisplayAlerts = False
wb.SaveAs(filename, None, '', '')
xcl.Quit()
but got the error NameError: name 'pw_str' is not defined
:'(

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