Automate the Boring Stuff with Python by Al Sweigart

Author:Al Sweigart [Al Sweigart]
Language: eng
Format: epub, mobi, pdf
Tags: COMPUTERS / Programming / General
ISBN: 9781593276850
Publisher: No Starch Press
Published: 2015-04-24T16:00:00+00:00

Creating and Removing Sheets

Sheets can be added to and removed from a workbook with the create_sheet() and remove_sheet() methods. Enter the following into the interactive shell:

>>> import openpyxl >>> wb = openpyxl.Workbook() >>> wb.get_sheet_names() ['Sheet'] >>> wb.create_sheet() <Worksheet "Sheet1"> >>> wb.get_sheet_names() ['Sheet', 'Sheet1'] >>> wb.create_sheet(index=0, title='First Sheet') <Worksheet "First Sheet"> >>> wb.get_sheet_names() ['First Sheet', 'Sheet', 'Sheet1'] >>> wb.create_sheet(index=2, title='Middle Sheet') <Worksheet "Middle Sheet"> >>> wb.get_sheet_names() ['First Sheet', 'Sheet', 'Middle Sheet', 'Sheet1']

The create_sheet() method returns a new Worksheet object named SheetX, which by default is set to be the last sheet in the workbook. Optionally, the index and name of the new sheet can be specified with the index and title keyword arguments.

Continue the previous example by entering the following:

>>> wb.get_sheet_names() ['First Sheet', 'Sheet', 'Middle Sheet', 'Sheet1'] >>> wb.remove_sheet(wb.get_sheet_by_name('Middle Sheet')) >>> wb.remove_sheet(wb.get_sheet_by_name('Sheet1')) >>> wb.get_sheet_names() ['First Sheet', 'Sheet']

The remove_sheet() method takes a Worksheet object, not a string of the sheet name, as its argument. If you know only the name of a sheet you want to remove, call get_sheet_by_name() and pass its return value into remove_sheet().

Remember to call the save() method to save the changes after adding sheets to or removing sheets from the workbook.

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