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[Solved] What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system()?

Hello Guys, How are you all? Hope You all Are Fine. Today I get the following error What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system()? in python. So Here I am Explain to you all the possible solutions here.

Without wasting your time, Let’s start This Article to Solve This Error.

How What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system() Error Occurs?

Today I get the following error What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system()? in python.

How To Solve What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system() Error ?

  1. How To Solve What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system() Error ?

    To Solve What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system() Error You get this error message if a Python file was closed from “the outside”, i.e. not from the file object's close() method:

  2. What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system()?

    To Solve What can lead to “IOError: [Errno 9] Bad file descriptor” during os.system() Error You get this error message if a Python file was closed from “the outside”, i.e. not from the file object's close() method:

Solution 1

You can get this error if you use wrong mode when opening the file. For example:

    with open(output, 'wb') as output_file:
        print output_file.read()

In that code, I want to read the file, but I use mode wb instead of r or r+

Solution 2

You get this error message if a Python file was closed from “the outside”, i.e. not from the file object’s close() method:

>>> f = open(".bashrc")
>>> os.close(f.fileno())
>>> del f
close failed in file object destructor:
IOError: [Errno 9] Bad file descriptor

The line del f deletes the last reference to the file object, causing its destructor file.__del__ to be called. The internal state of the file object indicates the file is still open since f.close() was never called, so the destructor tries to close the file. The OS subsequently throws an error because of the attempt to close a file that’s not open.

Since the implementation of os.system() does not create any Python file objects, it does not seem likely that the system() call is the origin of the error. Maybe you could show a bit more code?

Summery

It’s all About this issue. Hope all solution helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you? Thank You.

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