Xlsxwriter: how to disable text wrap in data label? - xlsxwriter

Question

I'm generating pie charts using XLSX writer, and everything is going perfectly except for one thing: I can't seem to find a way to control the text from wrapping in my data labels (which contain percentage values). Any font size above a 10 causes the '%' symbol to wrap below the digits (you can see this in the image I've attached below). I'm trying to generate many charts, so adjusting them manually could be costly time-wise.
The docs suggest that wrapping can be enabled or disabled from num_format. For cells, this property is set with a 'format' object. However, while data label text has a num_format property, the docs explicitly state that it must be set with a string literal and cannot take a format object. I have no clue how to prevent string wrapping with a string literal format.
Alternatively, I've looked into expanding/reducing the width/height of the data labels. However, this option also seems to be missing from the library.
From what I can tell, none of the other properties seem to suggest a way to avoid wrapping text.
My question is, is there a solution I'm missing? I'll leave some of my output and code below.
Current Code:
chart.add_series({
'categories' : '={}!B1:C1'.format(product_sheetname),
'values' : '={}!B2:C2'.format(product_sheetname),
'data_labels':{
'percentage':True,
'fill': {'color':'#363636'},
'font': {'name':'Arial (Body)', 'color':'white', 'size':16},
},
'points' : [
{'fill':{'color':'#4471d2'}},
{'fill':{'color':'#ff871c'}}
]
})
Current Output:
UPDATE:
A quick fix per the comment below is to scale up the size of the chart in general. While this solves the wrapping issue, it defeats the purpose of using a larger font.

Answer 1

There isn't any way in XlsxWriter to adjust the size of the data label but Excel should do it automatically to get the best result.
I tried to replicate but didn't see the text wrap that you are getting (even though I tried 3 different versions of Excel):
import xlsxwriter
workbook = xlsxwriter.Workbook('chart_pie.xlsx')
worksheet = workbook.add_worksheet()
worksheet.write_row('B1', ['Apple', 'Cherry'])
worksheet.write_row('B2', [53, 47])
chart = workbook.add_chart({'type': 'pie'})
product_sheetname = 'Sheet1'
chart.add_series({
'categories' : '={}!B1:C1'.format(product_sheetname),
'values' : '={}!B2:C2'.format(product_sheetname),
'data_labels':{
'percentage':True,
'fill': {'color':'#363636'},
'font': {'name':'Arial (Body)', 'color':'white', 'size':16},
},
'points' : [
{'fill':{'color':'#4471d2'}},
{'fill':{'color':'#ff871c'}}
]
})
worksheet.insert_chart('B3', chart, {'x_offset': 25, 'y_offset': 10})
workbook.close()
Output: