/Python/ValueError: I/O operation on closed file.

ValueError: I/O operation on closed file.

ValueError: I/O operation on closed file.

The Above error may ossour because,
you are writing to the file When it is closed
** To Solve this error **
  >>> Make sure that your file.write statement is in the 
  >>> 'with open('textFile.txt', 'w') as textFile:'

Source: stackoverflow.com

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