coloring cells in excel with pandas

问题

I need some help here. So i have something like this

import pandas as pd
path = '/Users/arronteb/Desktop/excel/ejemplo.xlsx'
xlsx = pd.ExcelFile(path)
df = pd.read_excel(xlsx,'Sheet1')
df['is_duplicated'] = df.duplicated('#CSR')
df_nodup = df.loc[df['is_duplicated'] == False]
df_nodup.to_excel('ejemplo.xlsx', encoding='utf-8')

So basically this program load the ejemplo.xlsx (ejemplo is example in Spanish, just the name of the file) into df (a DataFrame), then checks for duplicate values in a specific column. It deletes the duplicates and saves the file again. That part works correctly. The problem is that instead of removing duplicates, I need highlight the cells containing them with a different color, like yellow.

回答1:

You can create a function to do the highlighting...

def highlight_cells():
    # provide your criteria for highlighting the cells here
    return ['background-color: yellow']

And then apply your highlighting function to your dataframe...

df.style.apply(highlight_cells)

回答2:

I just had this same problem and I just solved it this week. My problem was not getting the includes to work properly to get the online code that I found working properly.

I am going to assume you mean change the background color not change the font color. If I am wrong clarify your request.

My solution is tied to a particular library. openpyxl

#### This import section is where my mistake was at
#### This works for me
import openpyxl    ### Excel files 
from openpyxl.styles import PatternFill, Border, Side, Alignment, Protection, Font
from openpyxl.styles import Fill, Color
from openpyxl.styles import Style
from openpyxl.styles.colors import RED
from openpyxl.styles.colors import GREEN


str_xls_PathFileCurrent = str_xls_FileName
### Opens Excel Document
var_xls_FileOpen    = openpyxl.load_workbook(str_xls_PathFileCurrent) 
### Opens up the Excel worksheet 
var_xls_TabName     = var_xls_FileOpen.worksheets[0]                  
### Put the spreadsheet tab names into an array 
ary_xls_SheetNames  = var_xls_FileOpen.get_sheet_names()              
### Open the sheet in the file you working on 
var_xls_TabSheet    = var_xls_FileOpen.get_sheet_by_name(ary_xls_SheetNames[0])
xls_cell = var_xls_TabSheet['d10']

#### Changes the cell background color 
xls_cell.style = Style(fill=PatternFill(patternType='solid'
    , fgColor=Color('C4C4C4')))  ### Changes background color 

#### Changes the fonts (does not use style) 
xls_cell.font = xls_cell.font.copy(color  = 'FFFF0000') ### Works (Changes to red font text) 
xls_cell.font = xls_cell.font.copy(bold  = True) ### Works (Changes to bold font) 
xls_cell.font = xls_cell.font.copy(italic= True) ### Works (Changes to Italic Text) 
xls_cell.font = xls_cell.font.copy(size  =   34) ### Works (Changes Size)

来源：https://stackoverflow.com/questions/39299509/coloring-cells-in-excel-with-pandas

标签

python

excel

pandas

duplicates

highlight