I'd like to use the python-pptx library to read the embedded data sheet behind a chart inside a presentation. I've seen the documentation to replace chart data, but I can't figure out how to read data.
I've already referred to Read chart data from existing chart using python-pptx but this is not what I'm looking for.
chart.part.chart_workbook.xlsx_part.blob will give you the Excel binary (bytes).
From there you can save that as a file or read it as an in-memory file using io.BytesIO(), or whatever suits your purposes.
You could, for example, open it with openpyxl and read and write the Excel "file".
Related
I have an excel form with shapes. If I change only the sheet contents to Python without changing this form and save it, all the shapes will disappear.
I'm using openpyxl.
How to persist excel shapes in python?
I think you're asking how to encode an Excel file's shapes in openpyxl data, and your goal is to have that data persist when you change the openpyxl data back into an Excel file format.
openpyxl is centered on transferability of data, data visualizations (e.g. charts), and some visual formatting information between Excel and python. But there is an openpyxl.chart.shapes submodule that may provide what you need.
I think you need "xlwings".
xlwing does a lot of things that openpyxl doesn't work. Keep the shapes you want or keep the formulas... However, be careful as it cannot operate in an environment without Excel.
import xlwings
app = xlwings.App(visible=False)
wb=app.books.open('test.xlsx')
ws= wbxl.sheets[0]
ws.shapes
xlwings docs
I am attempting to automate a monthly report that I write at work. Every month, the report from the previous month is opened in Word and the charts are updated via embedded Excel spreadsheets with the new months information.
I have a vague understanding that this can be done with VBA and win32com but I work on a Mac so I would prefer to use python-docx and openpyxl but as I understand MS native embedded elements are not supported in docx yet. I instead opted to just unzip the docx and edit the Excel file directly.
The thing I can't figure out is how to adjust the size of the table that the chart is pulling information from. This is shown by the blue line in the picture.
Excel table
I've been reading as much of the openpyxl documentation as I can but I can't figure out how to do this.
There is an excel file with different sheets which is included by different charts and data. I want to make a powerpoint for my daily presentation automatically by python(PPTx lib in python).
my problem is I have to copy the charts which exist in excel and past in my powerpoint which is created by python (pptx). I want to know is there any possibility to export charts from excel file to powerpoint by python?
There is no direct API support for this in python-pptx. However, there are other approaches that might work for you.
Perhaps the simplest would be to use a package like openpyxl to read the data from the spreadsheet and recreate the chart using python-pptx, based on the data read from Excel.
If you wanted to copy the chart exactly, this is also possible but would require detailed knowledge of the Open Packaging Convention (OPC) file format and XML schemas to accomplish. Essentially, you would copy the chart-part for the chart into the PowerPoint package (zip file) and connect it to a graphic-frame shape on a slide. You'd also need to embed the Excel worksheet into the PowerPoint, perhaps repeatedly (once for each chart) and make any format-specific adjustments (Excel and PowerPoint handle charts slightly differently in certain details).
This latter approach would be a big job, so I would recommend trying the simpler approach first and see if that will get it done for you.
I am trying to get a table with data saved in svg, pdf or png file. Are there any libraries to do it?
I've tried pygal, but it seems that they provide only charts saving.
Edited: This table is just a couple of arrays with data, and I need to build a nice table from them
Use tabulate, the documentation can be found here
I have a complex excel spreadsheet that I'm trying to ingest and cleanse via xlrd. The existing spreadsheet is really designed to be more of a "readable" document, but I'm tasked with ingesting it as a data source. The trouble is that there is frequently lots of spacing between the field names and the actual data. Ultimately I'd like to read in the contents of the excel file, process it, and write a simplified file with just the data. Any ideas?
For example:
Have:
Want:
Here's the example spreadsheet: download