How to change/add chart data series in python-pptx? -


i'm trying set data in existing chart using python-pptx.

from pptx import presentation pres_path = "c:\\pres.pptx" pres = presentation(pres_path)  pres.slides[3].shapes[4].chart.series[0].values

(92.0, 330.0, 309.0, 313.0, 356.0, 421.0, 457.0)

pres.slides[3].shapes[4].chart.series[0].values = (1,2,3)  traceback (most recent call last):   file "<input>", line 1, in <module>   attributeerror: can't set attribute

there's method mentioned in documentation seems relevant, can't understand how use it: http://python-pptx.readthedocs.org/en/latest/_modules/pptx/chart/data.html

pres.slides[3].shapes[4].chart.replace_data((1,2,3))   traceback (most recent call last):   file "<input>", line 1, in <module>   file "c:\python27\lib\site-packages\pptx\chart\chart.py", line 119, in     replace_data     _seriesrewriter.replace_series_data(self._chartspace, chart_data)   file "c:\python27\lib\site-packages\pptx\chart\chart.py", line 197, in replace_series_data sers = cls._adjust_ser_count(chartspace, len(chart_data.series)) attributeerror: 'tuple' object has no attribute 'series'

i'd appreciate can provide. thanks!

to add new series existing table behind chart need 3 things:

  1. create instance of chartdata()
  2. provide category name

  3. add new series chartdata() object, using "add_series()" func.

    chart_data = chartdata() chart_data.categories = 'category_name'  col_idx, col in enumerate(single_df.columns):     chart_data.add_series(col, (single_df.ix[:, col_idx].values))              shp.chart.replace_data(chart_data)

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