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Problem using Python library library to add query table in Excel

I am trying to create a QueryTable in an Excel spreadsheet using the Python library library, but getting a rather uninformative error ...

In vba (in the module in the workbook), the following code works fine:

Sub CreateQuery()
    Dim con As ADODB.Connection
    Dim rs As ADODB.Recordset
    Dim ws As Worksheet
    Dim qt As QueryTable

    Set ws = ActiveWorkbook.Sheets(1)

    Set con = New ADODB.Connection
    con.Open ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Path\to\Db.mdb;")

    Set rs = New ADODB.Recordset
    rs.Open "Select * from [tbl Base Data];", con

    Set qt = ws.QueryTables.Add(rs, ws.Range("A1"))
    qt.Refresh
End Sub

But the following Python code:

import sys
import comtypes.client as client

def create_querytable():
    constring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\Path\\to\\Db.mdb"
    conn = client.CreateObject("ADODB.Connection", dynamic = True)
    rs = client.CreateObject("ADODB.Recordset", dynamic = True)

    SQL = "Select * from [tbl Base Data];"

    conn.Open(constring)
    rs.Open(SQL, conn)
    excel = client.CreateObject("Excel.Application", dynamic = True)
    excel.Visible = True
    ws = excel.Workbooks.Add().Sheets(1)
    qt = ws.QueryTables.Add(rs, ws.Range["A1"])
    qt.Refresh()
    rs.Close()
    conn.Close()

Throws a useless error message:

Traceback (most recent call last):
  File "<pyshell#34>", line 1, in <module>
    create_querytable()
  File "C:/Documents and Settings/cvmne250/Desktop/temp.py", line 17, in create_querytable
    qt = ws.QueryTables.Add(rs, ws.Range["A1"])
  File "G:\ISA\SPSS\comtypes\lib\comtypes\client\lazybind.py", line 160, in caller
  File "G:\ISA\SPSS\comtypes\lib\comtypes\automation.py", line 628, in _invoke
COMError: (-2147352567, 'Exception occurred.', (None, None, None, 0, None))

Any ideas on what's going on here?

Thanks!

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2 answers

I simplified your code and this should work fine (I will explain the changes below):

def create_querytable2():
    constring = "OLEDB;Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\path\to\db.mdb;"
    SQL = "Select * from tblName;"
    excel = client.CreateObject("Excel.Application", dynamic=True)
    excel.Visible = True
    ws = excel.Workbooks.Add().Worksheets(1)
    ws.QueryTables.Add(constring, ws.Range["A1"], SQL).Refresh()

QueryTables.Add() Connection Recordset, ... , conneciton ( "OLEDB" ).

Excel , , :)

+2

, :

qt = ws.QueryTables.Add(rs, ws.Range["A1"])

, , python VBA. .

.

qt = ws.QueryTables.Add(rs, ws.Range("A1"))

, VBA Range("A1") Range.Item("A1"). , VBA Collections python.

VBA.

- :

, : as , , , "[" , , . - mavnn

, comtypes.client.CreateObject , win32com.client.Dispatch? com- win32com , .

+1

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