Applying formatting row by row in addition to column formatting with xlsxwriter

Question

I am formatting all of my columns in an excel file using the xlsxwriter module:

def to_excel(video_report, feed):
    # Create a Pandas Excel writer using Xl         


        

Answer 1

Modifying the XLSXWriter sample code at URL http://xlsxwriter.readthedocs.org/en/latest/example_conditional_format.html

I suggest formatting as you iterate over the data, using the row value in a test. For example...

While writing data:

###############################################################################
#
# Example 9.
#
caption = ('Rows with odd numbers are in light red. '
           'Rows with even numbers are in light green.')

# Write the data.
worksheet9.write('A1', caption)

for row, row_data in enumerate(data):
    if row%2 == 0:
        worksheet9.write_row(row + 2, 1, row_data, format1)
    else:
        worksheet9.write_row(row + 2, 1, row_data, format2)

After writing data:

###############################################################################
#
# Example 10.
#
#
caption = ('Rows with odd numbers are in light red. '
           'Rows with even numbers are in light green.')
#
# Write the data.
worksheet10.write('A1', caption)
##
for row, row_data in enumerate(data):
    worksheet10.write_row(row + 2, 1, row_data)
##
# Write a conditional format over a range.
for row, row_data in enumerate(data):
    if row%2 == 0:
        worksheet10.set_row(row + 2, None, format1)
    else:
        worksheet10.set_row(row + 2, None, format2)

Per https://support.office.com/en-in/article/Apply-shading-to-alternate-rows-in-a-worksheet-a443b0f5-2025-42f6-9099-5de09c05e880 , Microsoft offers two methods to achieve alternating row formats : Conditional Formatting OR Table Style "Banded Rows".

Conditional Formatting with formula =MOD(ROW(),2)=0 completes, but Excel 2013 cannot interpret it.

# Write a conditional format over a range DOES NOT WORK
worksheet1.conditional_format('A1:K12', {'type': 'cell',
                                         'criteria': '=MOD(ROW(),2)',
                                         'value': 0,
                                         'format': format1})

# Write another conditional format over the same range also DOES NOT WORK
worksheet1.conditional_format('A1:K12', {'type': 'cell',
                                         'criteria': '=MOD(ROW(),2)',
                                         'value': 1,
                                         'format': format2})