I am trying to write in my CSV file with python But Somehow I am facing the following error: ValueError: I/O operation on closed file in Python. In this Exerror article, We are going to learn about How to reproduce this error and we will discuss All Possible Solutions Lets Get Start with This Article.
How ValueError: I/O operation on closed file in Python Error Occurs?
I am trying to write in my CSV file with python But Somehow I am facing the following error.
ValueError: I/O operation on closed file
So here I am writing all the possible solutions that I have tried to resolve this error.
How To Solve ValueError: I/O operation on closed file in Python Error?
How To Solve ValueError: I/O operation on closed file in Python Error?
To Solve ValueError: I/O operation on closed file in Python Error You just need to make sure your indentation is right. This error usually occurs when you are trying to write on file on outside of with open(). So Make Sure Your Write Function Must be In the with open(). For Example, I am trying to write in my students.csv file And in the below Code, I am facing ValueError: I/O operation on closed file error Because I am trying to write just after the file is Closed. and that’s causing this error. Your file is only open until you are in with open() outside of with open() your file will be closed. And now, Your error will be solved.
ValueError: I/O operation on closed file in Python
To Solve ValueError: I/O operation on closed file in Python Error You just need to make sure your indentation is right. This error usually occurs when you are trying to write on file on outside of with open(). So Make Sure Your Write Function Must be In the with open(). For Example, I am trying to write in my students.csv file And in the below Code, I am facing ValueError: I/O operation on closed file error Because I am trying to write just after the file is Closed. and that’s causing this error. Your file is only open until you are in with open() outside of with open() your file will be closed. And now, Your error will be solved.
Solution 1: indentation
To Solve ValueError: I/O operation on closed file in Python Error You just need to make sure your indentation is right. This error usually occurs when you are trying to write on file on outside of with open(). So Make Sure Your Write Function Must be In the with open().
For Example, I am trying to write in my students.csv file And in the below Code, I am facing ValueError: I/O operation on closed file error Because I am trying to write just after the file is Closed. and that’s causing this error.
import csv
with open('students.csv', 'w') as studentFile:
writeFile = csv.DictWriter(csvfile, fieldnames=fieldnames)
print(studentFile.closed) // false
print(studentFile.closed) // true
writeFile.writerow({'s_f_name': 'Rohan', 's_l_name': 'Khurana'}) // ValueError: I/O operation on closed file
Your file is only open until you are in with open() outside of with open() your file will be closed. Just like this.
import csv
with open('students.csv', 'w') as studentFile:
writeFile = csv.DictWriter(csvfile, fieldnames=fieldnames)
print(studentFile.closed) // false
print(studentFile.closed) // false
writeFile.writerow({'s_f_name': 'Rohan', 's_l_name': 'Khurana'}) // Write Successful
And now, Your error will be solved.
Solution 2: Example
You can write in your CSV just like this.
import csv
studentCsv = open('students.csv', 'w', encoding='utf-8')
studentCsv.write('student 1' + '\n')
studentCsv.write('student 2' + '\n')
studentCsv.write('student 3' + '\n')
Solution 3: Watch this video
Conclusion
It’s all About this error. I hope We Have solved Your error. Comment below Your thoughts and your queries. Also, Comment below on which solution worked for you.
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