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kn_​example_​python_​excel_​sheet_​move_​to_​position

use KNIME and Python OpenPyxl to read the index numbers of every sheet in an Excel file - then move a sheet from one index position to a new one

use KNIME and Python OpenPyxl to read the index numbers of every sheet in an Excel file - then move a sheet from one index position to a new one



################################################################################ https://openpyxl.readthedocs.io/en/stable/worksheet_tables.html# there is a Jupyter notebook in the /data/kn_example_python_excel_sheet_index.ipynb folder to experiment with# import the KNIME moduleimport knime.scripting.io as knioimport numpy as npimport pandas as pdfrom openpyxl import Workbookfrom openpyxl import load_workbookfrom openpyxl.worksheet.table import Table, TableStyleInfoimport os# recreate the classic input_table from the new Python import since KNIME 4.5input_table = knio.input_tables[0].to_pandas()# get the path to the data foldervar_workflow_data_path = knio.flow_variables['context.workflow.data-path']print("var_workflow_data_path : ", var_workflow_data_path )# create the path of the Excel filevar_path_excel_file = var_workflow_data_path + "my_data.xlsx"print("var_path_excel_file : ", var_path_excel_file )wb = load_workbook(var_path_excel_file) # Set the filepath + filename# create a list of the sheet nameslist_sheetnames = wb.sheetnames# create an empty listlist_sheetnames_index= list()# iterate over the sheet names and extract their indexfor s in range(len(wb.sheetnames)): wb.active = s sheet_name = wb.sheetnames[s] sheet_index = wb._active_sheet_index new_item = sheet_name, sheet_index type(new_item) list_sheetnames_index.append(new_item) # print(sheet_name, sheet_index)# convert the list to a data frame to bring back to KNIMEdf = pd.DataFrame(list_sheetnames_index, columns = ["sheet_name", "sheet_index"])df['sheet_index'] = df['sheet_index'].astype(int)wb.close()# also export the path of the excel file from Pythonknio.flow_variables['var_path_excel_file'] = var_path_excel_fileknio.output_tables[0] = knio.Table.from_pandas(df) Prepare an Excel file where "Sheet3" is at the secondposition resulting in an index 1 (starting at 0) use KNIME and Python OpenPyxl to read the index numbers of every sheet in an Excel file - then move a sheet from one index position to a new one("did someone say overengineered ...?") ################################################################################ https://stackoverflow.com/questions/51082458/move-a-worksheet-in-a-workbook-using-openpyxl-or-xl-or-xlsxwriter/63622324#63622324# import the KNIME moduleimport knime.scripting.io as kniofrom openpyxl import load_workbookdef neworder(file, sheetname, tpos):"""Takes a list of ints, and inserts the fpos (from position) int, to tpos (to position)""" wb = load_workbook(filename=file) fpos = wb.worksheets.index(wb[sheetname]) if fpos == tpos: wb.close() return shlist = wb.sheetnames # get current order sheets in workbook lst = [] lpos = (len(shlist) - 1) # last position if lpos >= fpos > tpos >= 0: # move from a high to low position for x in range(lpos+1): if x == tpos: lst.append(fpos) elif tpos < x <= fpos: lst.append(x-1) else: lst.append(x) if lpos >= tpos > fpos >= 0: # move from a low to high position for x in range(lpos+1): if x == tpos: lst.append(fpos) elif fpos <= x < tpos: lst.append(x+1) else: lst.append(x) wb._sheets = [wb._sheets[i] for i in lst] # get each object instance from wb._sheets, and replace wb.active = wb[sheetname] wb.save(filename=file) wb.close() returnfile_var = knio.flow_variables['v_excel_file_path']sheetname_var = knio.flow_variables['v_sheet_name']tpos_var = knio.flow_variables['v_sheet_new_position']neworder(file_var, sheetname_var , tpos_var) locate and create/data/ folderwith absolute paths1.000 linesmy_data.xlsxlist index of every sheetBEFOREvar_*move Excel sheet toa new positionwith the help ofOpenPyxlmy_data.xlsxlist index of every sheetAFTERmy_data.xlsx Collect LocalMetadata Data Generator Merge Variables Python Script Variable toTable Row Component Python Script Metanode ################################################################################ https://openpyxl.readthedocs.io/en/stable/worksheet_tables.html# there is a Jupyter notebook in the /data/kn_example_python_excel_sheet_index.ipynb folder to experiment with# import the KNIME moduleimport knime.scripting.io as knioimport numpy as npimport pandas as pdfrom openpyxl import Workbookfrom openpyxl import load_workbookfrom openpyxl.worksheet.table import Table, TableStyleInfoimport os# recreate the classic input_table from the new Python import since KNIME 4.5input_table = knio.input_tables[0].to_pandas()# get the path to the data foldervar_workflow_data_path = knio.flow_variables['context.workflow.data-path']print("var_workflow_data_path : ", var_workflow_data_path )# create the path of the Excel filevar_path_excel_file = var_workflow_data_path + "my_data.xlsx"print("var_path_excel_file : ", var_path_excel_file )wb = load_workbook(var_path_excel_file) # Set the filepath + filename# create a list of the sheet nameslist_sheetnames = wb.sheetnames# create an empty listlist_sheetnames_index= list()# iterate over the sheet names and extract their indexfor s in range(len(wb.sheetnames)): wb.active = s sheet_name = wb.sheetnames[s] sheet_index = wb._active_sheet_index new_item = sheet_name, sheet_index type(new_item) list_sheetnames_index.append(new_item) # print(sheet_name, sheet_index)# convert the list to a data frame to bring back to KNIMEdf = pd.DataFrame(list_sheetnames_index, columns = ["sheet_name", "sheet_index"])df['sheet_index'] = df['sheet_index'].astype(int)wb.close()# also export the path of the excel file from Pythonknio.flow_variables['var_path_excel_file'] = var_path_excel_fileknio.output_tables[0] = knio.Table.from_pandas(df) Prepare an Excel file where "Sheet3" is at the secondposition resulting in an index 1 (starting at 0) use KNIME and Python OpenPyxl to read the index numbers of every sheet in an Excel file - then move a sheet from one index position to a new one("did someone say overengineered ...?") ################################################################################ https://stackoverflow.com/questions/51082458/move-a-worksheet-in-a-workbook-using-openpyxl-or-xl-or-xlsxwriter/63622324#63622324# import the KNIME moduleimport knime.scripting.io as kniofrom openpyxl import load_workbookdef neworder(file, sheetname, tpos):"""Takes a list of ints, and inserts the fpos (from position) int, to tpos (to position)""" wb = load_workbook(filename=file) fpos = wb.worksheets.index(wb[sheetname]) if fpos == tpos: wb.close() return shlist = wb.sheetnames # get current order sheets in workbook lst = [] lpos = (len(shlist) - 1) # last position if lpos >= fpos > tpos >= 0: # move from a high to low position for x in range(lpos+1): if x == tpos: lst.append(fpos) elif tpos < x <= fpos: lst.append(x-1) else: lst.append(x) if lpos >= tpos > fpos >= 0: # move from a low to high position for x in range(lpos+1): if x == tpos: lst.append(fpos) elif fpos <= x < tpos: lst.append(x+1) else: lst.append(x) wb._sheets = [wb._sheets[i] for i in lst] # get each object instance from wb._sheets, and replace wb.active = wb[sheetname] wb.save(filename=file) wb.close() returnfile_var = knio.flow_variables['v_excel_file_path']sheetname_var = knio.flow_variables['v_sheet_name']tpos_var = knio.flow_variables['v_sheet_new_position']neworder(file_var, sheetname_var , tpos_var) locate and create/data/ folderwith absolute paths1.000 linesmy_data.xlsxlist index of every sheetBEFOREvar_*move Excel sheet toa new positionwith the help ofOpenPyxlmy_data.xlsxlist index of every sheetAFTERmy_data.xlsxCollect LocalMetadata Data Generator Merge Variables Python Script Variable toTable Row Component Python Script Metanode

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Created by: m_lauber
Created at: 2021-12-17
On NodePit since: 2022-06-15
Last update: 2024-11-23
Created with KNIME version: v4.7.0
Tags: KNIMEpythonopenpyxlindexsheetsheetnamemoveposition

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