Error in converting txt to xlsx using python -

my code following.

import csv import openpyxl  import sys   def convert(input_path, output_path):     """     read csv file (with no quoting), , save contents in excel file.     """     wb = openpyxl.workbook()     ws = wb.worksheets[0]      open(input_path) f:         reader = csv.reader(f, delimiter='\t', quoting=csv.quote_none)         row_index, row in enumerate(reader):             col_index, value in enumerate(row):                 ws.cell(row=row_index, column=col_index).value = value      wb.save(output_path)   def main():     try:         input_path, output_path = sys.argv[1:]     except valueerror:         print 'usage: python %s input_path output_path' % (sys.argv[0],)     else:         convert(input_path, output_path)   if __name__ == '__main__':     main() 

but got error.

traceback (most recent call last):    file "txt2xlsx.py", line 33, in <module>      main()    file "txt2xlsx.py", line 29, in main      convert(input_path, output_path)    file "txt2xlsx.py", line 18, in convert      ws.cell(row=row_index, column=col_index).value = value    file "c:\python27\lib\site-packages\openpyxl\worksheet\worksheet.py", line 350, in cell      column = get_column_letter(column)    file "c:\python27\lib\site-packages\openpyxl\utils\__init__.py", line 100, in get_column_letter      raise valueerror("invalid column index {0}".format(idx))  valueerror: invalid column index 0  

i think have installed openpyxl correctly.

and remember using program without problem before. bought new computer maybe pc configuration issue.. can't figure out.

seems using openpyxl 2.0.0 + ,according changelog openpyxl 2.0.0 -

cells referenced 1-indexing: a1 == cell(row=1, column=1)

the rows , columns index start @ 1. should make enumerate() function start @ 1 well. example -

    row_index, row in enumerate(reader, 1):         col_index, value in enumerate(row, 1):             ws.cell(row=row_index, column=col_index).value = value 

your particular code work in openpyxl version less 2.0.0 , fails because of above mentioned change in version 2.0.0 .