[reportlab-users] horizontalbarcharts with negative data

[Nicholas Wieland]

I finally figured out the problem.
I was passing the wrong data structure to the chart.
Out of curiosity, what's the rationale behind using a list of lists for a chart and a list of tuples in another ?
Tuples are immutable, I had to recreeate the data structure at the end of my function, and I can't see any benefit in this.
 
  ngw

		
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