如何用python xlwt庫更改excel單元格的背景顏色？

Question

我使用xlwt Python庫在excel工作簿中寫入數據。
現在我有一些向excel單元格添加背景色的問題。

例如，我有RGB（10,20,30）中的下一個顏色，最簡單的方法是什麼？ 有沒有什麼辦法可以將這種顏色設置爲單元格？

我發現只有this的帖子，這與我的問題類似。

Answer 1

在這個例子中，我已經展示瞭如何設置細胞背景顏色，你可以爲結果運行：

from xlwt import Workbook 
import xlwt 
book = Workbook() 
sheet1 = book.add_sheet('Sheet 1') 
book.add_sheet('Sheet 2') 
for i in range(0, 100): 
    st = xlwt.easyxf('pattern: pattern solid;') 
    st.pattern.pattern_fore_colour = i 
    sheet1.write(i % 24, i/24, 'Test text',st) 
book.save('simple.xls') 

Answer 2

我有這個問題，我做了最後搜索

的很多我找到了一個合適的和好的解決方案： source of solution

它工作的很好！

只需添加這個類到你的項目，並設置Excel的顏色：

class ColorMatcher(object): 
""" 
the source is in : http://www.archivum.info/python-excel@googlegroups.com/2012-09/00014/Re-(pyxl)-Re-Background-with-any-rgb-value.html 

Prior to Excel 2007, Excel only had color 
indexes, and that's all that xlwt supports. Maybe this will help, 
though. It use a ColorMatcher that takes an RGB input and tries to 
return the closest matching Excel color index: 
""" 

def __init__(self): 
    self.reset() 

def reset(self): 
    self.unused_colors = set(self.xlwt_colors) 
    # Never use black. 
    self.unused_colors.discard((0, 0, 0)) 

#Culled from a table at http://www.mvps.org/dmcritchie/excel/colors.htm 
xlwt_colors=[ 
    (0,0,0), (255,255,255), (255,0,0), (0,255,0), (0,0,255), (255,255,0), 
    (255,0,255), (0,255,255), (0,0,0), (255,255,255), (255,0,0), (0,255,0), 
    (0,0,255), (255,255,0), (255,0,255), (0,255,255), (128,0,0), (0,128,0), 
    (0,0,128), (128,128,0), (128,0,128), (0,128,128), (192,192,192), 
    (128,128,128), (153,153,255), (153,51,102), (255,255,204), 
    (204,255,255), (102,0,102), (255,128,128), (0,102,204), (204,204,255), 
    (0,0,128), (255,0,255), (255,255,0), (0,255,255), (128,0,128), 
    (128,0,0), (0,128,128), (0,0,255), (0,204,255), (204,255,255), 
    (204,255,204), (255,255,153), (153,204,255), (255,153,204), 
    (204,153,255), (255,204,153), (51,102,255), (51,204,204), (153,204,0), 
    (255,204,0), (255,153,0), (255,102,0), (102,102,153), (150,150,150), 
    (0,51,102), (51,153,102), (0,51,0), (51,51,0), (153,51,0), (153,51,102), 
    (51,51,153), (51,51,51) 
] 

@staticmethod 
def color_distance(rgb1, rgb2): 
    # Adapted from Colour metric by Thiadmer Riemersma, 
    # http://www.compuphase.com/cmetric.htm 
    rmean = (rgb1[0] + rgb2[0])/2 
    r = rgb1[0] - rgb2[0] 
    g = rgb1[1] - rgb2[1] 
    b = rgb1[2] - rgb2[2] 
    return (((512 + rmean) * r * r)/256) + 4 * g * g\ 
    + (((767 - rmean) * b * b)/256) 

def match_color_index(self, color): 
    """Takes an "R,G,B" string or wx.Color and returns a matching xlwt 
    color. 
    """ 
    if isinstance(color, int): 
     return color 
    if color: 
     if isinstance(color, basestring): 
      rgb = map(int, color.split(',')) 
     else: 
      rgb = color.Get() 
     distances = [self.color_distance(rgb, x) for x in self.xlwt_colors] 
     result = distances.index(min(distances)) 
     self.unused_colors.discard(self.xlwt_colors[result]) 
     return result 

def get_unused_color(self): 
    """Returns an xlwt color index that has not been previously returned by 
    this instance. Attempts to maximize the distance between the color and 
    all previously used colors. 
    """ 
    if not self.unused_colors: 
     # If we somehow run out of colors, reset the color matcher. 
     self.reset() 
    used_colors = [c for c in self.xlwt_colors if c not in 
                self.unused_colors] 
    result_color = max(self.unused_colors, 
     key=lambda c: min(self.color_distance(c, c2) 
     for c2 in used_colors)) 
    result_index = self.xlwt_colors.index(result_color) 
    self.unused_colors.discard(result_color) 
    return result_index 

這段代碼的來源是： http://www.archivum.info/python-excel@googlegroups.com/2012-09/00014/Re-%28pyxl%29-Re-Background-with-any-rgb-value.htmle

Answer 3

GREEN_TABLE_HEADER = easyxf(
       'font: bold 1, name Tahoma, height 160;' 
       'align: vertical center, horizontal center, wrap on;' 
       'borders: left thin, right thin, top thin, bottom thin;' 
       'pattern: pattern solid, pattern_fore_colour green, pattern_back_colour green' 
       ) 
overviewSheet.row(rowCursor).write(col_0, 'Issue', GREEN_TABLE_HEADER) 

Answer 4

我建議使用XlsxWriter模塊，具有真棒特點太http://xlsxwriter.readthedocs.io/