Writing to an Excel spreadsheet

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不知归路
不知归路 2020-11-22 04:39

I am new to Python. I need to write some data from my program to a spreadsheet. I\'ve searched online and there seem to be many packages available (xlwt, XlsXcessive, openpy

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  • 2020-11-22 05:25

    CSV stands for comma separated values. CSV is like a text file and can be created simply by adding the .CSV extension

    for example write this code:

    f = open('example.csv','w')
    f.write("display,variable x")
    f.close()
    

    you can open this file with excel.

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  • 2020-11-22 05:25

    Try taking a look at the following libraries too:

    xlwings - for getting data into and out of a spreadsheet from Python, as well as manipulating workbooks and charts

    ExcelPython - an Excel add-in for writing user-defined functions (UDFs) and macros in Python instead of VBA

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  • 2020-11-22 05:27

    You can try hfexcel Human Friendly object-oriented python library based on XlsxWriter:

    from hfexcel import HFExcel
    
    hf_workbook = HFExcel.hf_workbook('example.xlsx', set_default_styles=False)
    
    hf_workbook.add_style(
        "headline", 
        {
           "bold": 1,
            "font_size": 14,
            "font": "Arial",
            "align": "center"
        }
    )
    
    sheet1 = hf_workbook.add_sheet("sheet1", name="Example Sheet 1")
    
    column1, _ = sheet1.add_column('headline', name='Column 1', width=2)
    column1.add_row(data='Column 1 Row 1')
    column1.add_row(data='Column 1 Row 2')
    
    column2, _ = sheet1.add_column(name='Column 2')
    column2.add_row(data='Column 2 Row 1')
    column2.add_row(data='Column 2 Row 2')
    
    
    column3, _ = sheet1.add_column(name='Column 3')
    column3.add_row(data='Column 3 Row 1')
    column3.add_row(data='Column 3 Row 2')
    
    # In order to get a row with coordinates:
    # sheet[column_index][row_index] => row
    print(sheet1[1][1].data)
    assert(sheet1[1][1].data == 'Column 2 Row 2')
    
    hf_workbook.save()
    
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  • 2020-11-22 05:28

    If your need is to modify an existing workbook, the safest way would be to use pyoo. You need to have some libraries installed and it takes a few hoops to jump through but once its set up, this would be bulletproof as you are leveraging the wide and solid API's of LibreOffice / OpenOffice.

    Please see my Gist on how to set up a linux system and do some basic coding using pyoo.

    Here is an example of the code:

    #!/usr/local/bin/python3
    import pyoo
    # Connect to LibreOffice using a named pipe 
    # (named in the soffice process startup)
    desktop = pyoo.Desktop(pipe='oo_pyuno')
    wkbk = desktop.open_spreadsheet("<xls_file_name>")
    sheet = wkbk.sheets['Sheet1']
    # Write value 'foo' to cell E5 on Sheet1
    sheet[4,4].value='foo'
    wkbk.save()
    wkbk.close()
    
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  • 2020-11-22 05:31

    The easiest way to import the exact numbers is to add a decimal after the numbers in your l1 and l2. Python interprets this decimal point as instructions from you to include the exact number. If you need to restrict it to some decimal place, you should be able to create a print command that limits the output, something simple like:

    print variable_example[:13]
    

    Would restrict it to the tenth decimal place, assuming your data has two integers left of the decimal.

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  • 2020-11-22 05:32
    import xlwt
    
    def output(filename, sheet, list1, list2, x, y, z):
        book = xlwt.Workbook()
        sh = book.add_sheet(sheet)
    
        variables = [x, y, z]
        x_desc = 'Display'
        y_desc = 'Dominance'
        z_desc = 'Test'
        desc = [x_desc, y_desc, z_desc]
    
        col1_name = 'Stimulus Time'
        col2_name = 'Reaction Time'
    
        #You may need to group the variables together
        #for n, (v_desc, v) in enumerate(zip(desc, variables)):
        for n, v_desc, v in enumerate(zip(desc, variables)):
            sh.write(n, 0, v_desc)
            sh.write(n, 1, v)
    
        n+=1
    
        sh.write(n, 0, col1_name)
        sh.write(n, 1, col2_name)
    
        for m, e1 in enumerate(list1, n+1):
            sh.write(m, 0, e1)
    
        for m, e2 in enumerate(list2, n+1):
            sh.write(m, 1, e2)
    
        book.save(filename)
    

    for more explanation: https://github.com/python-excel

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