xlsxwriter conditional formatting by formula criteria

Question

I want to apply format to cells in a column. The row indexes are 5,7,8,9,10,11 and 13.

The code I am using is the following:

 worksheet.conditional_format("C4:C14", {'type'    :  'formula',
                                           'criteria': '=ISNUMBER(MATCH(ROW(),{5,7,8,9,10,11,13},0))=TRUE',
                                           'format'  :   format_white})

The result is no Excel file is generated.

The formula =ISNUMBER(MATCH(ROW(),{5,7,8,9,10,11,13},0))=TRUE works as I expected when I type it directly in Excel. I run the code above with a simpler formula 'criteria': '=MOD(ROW(),2)=0' and it works, so I suspect the problem is in the criteria field.

Can anyone help me? Thanks in advance

Answer 1

In order for a formula to work in an XlsxWriter generated file it has to work in Excel.

In this case the conditional formula formula isn't valid in Excel:

=ISNUMBER(MATCH(ROW(),{5,7,8,9,10,11,13},0))=TRUE

If you add it manually in Excel you get the following error/warning:

"You may not use reference operators (such as unions, intersections, and ranges) or other array constants for Conditional Formatting criteria".