openpyxl font conditional formatting
To highlight cells that are less than zero, you can use the following code when using openpyxl
version 2.2.6
:
from openpyxl import formatting, styles
wb = Workbook()
ws = wb.active
red_color = 'ffc7ce'
red_color_font = '9c0103'
red_font = styles.Font(size=14, bold=True, color=red_color_font)
red_fill = styles.PatternFill(start_color=red_color, end_color=red_color, fill_type='solid')
for row in range(1,10):
ws.cell(row=row, column=1, value=row-5)
ws.cell(row=row, column=2, value=row-5)
ws.conditional_formatting.add('A1:A10', formatting.CellIsRule(operator='lessThan', formula=['0'], fill=red_fill, font=red_font))
ws.conditional_formatting.add('B1:B10', formatting.CellIsRule(operator='lessThan', formula=['0'], fill=red_fill))
wb.save("test.xlsx")
This displays as follows:
For openpyxl version 2.5.1,CellIsRule
is now inside rule
as follows:
from openpyxl import formatting, styles, Workbook
wb = Workbook()
ws = wb.active
red_color = 'ffc7ce'
red_color_font = '9c0103'
red_font = styles.Font(size=14, bold=True, color=red_color_font)
red_fill = styles.PatternFill(start_color=red_color, end_color=red_color, fill_type='solid')
for row in range(1,10):
ws.cell(row=row, column=1, value=row-5)
ws.cell(row=row, column=2, value=row-5)
ws.conditional_formatting.add('A1:A10', formatting.rule.CellIsRule(operator='lessThan', formula=['0'], fill=red_fill, font=red_font))
ws.conditional_formatting.add('B1:B10', formatting.rule.CellIsRule(operator='lessThan', formula=['0'], fill=red_fill))
wb.save("test.xlsx")
Comments
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Nhor almost 2 years
I am using pyopenxl to output some excel spreadsheets, I encountered a problem with font conditional formatting. I want to highlight the cells lesser than 0 with red color and here's what I've done:
from pyopenxl import formatting, styles red_font = styles.Font(size=self.font_size, bold=bold, color=self.red_color_font) red_fill = styles.PatternFill(start_color=self.red_color, end_color=self.red_color, fill_type='solid') self.ws.conditional_formatting.add( cell.coordinate, formatting.CellIsRule(operator='lessThan', formula=['0'], fill=red_fill, font=red_font) )
So I simply created styles for font and fill and applied them for my cell. The bad thing is that it doesn't work. As soon as I remove the font formatting from the
CellIsRule()
everything goes back to normal and I'm having my cell filled with red. But the thing is that I need to change the color as well, does anyone has any idea what's wrong with my code? Or maybe with openpyxl?