I am trying to run this code:
import xlrd import os.path import xlsxwriter with open("arrays.xlsx", "a") as my_file: workbook = xlsxwriter.Workbook(my_file) worksheet = workbook.add_worksheet() array = [1, 2, 3, 4, 5] row = 0 for col, data in enumerate(array): worksheet.write_column(row, 0, array) workbook.close()
But when I run it, I get the following error:
Traceback (most recent call last): File "C:\Users\hp\Anaconda3\lib\zipfile.py", line 1649, in __del__ self.close() File "C:\Users\hp\Anaconda3\lib\zipfile.py", line 1666, in close self.fp.seek(self.start_dir) ValueError: I/O operation on closed file.
with you don’t actually need to close the file.
withstatement is used to wrap the execution of a block with
methods defined by a context manager (see section With Statement
Context Managers). This allows common
patterns to be encapsulated for convenient reuse.
The implicit finally block which is hidden here will close the file for you. Just remove your explicit close and you will be fine.