A student launches the Python interpreter from his home directory. His home directory contains another directory called 'mydir', and 'mydir' contains two files called 'foo' and 'bar'. The home directory does not contain any files, only other directories. What will happen when he writes the following code at the Python prompt:>>> import os>>> filenames = os.listdir('mydir')>>> f= open(filenames[0])=====================================================================================A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened for writing in text mode.An error will be produced stating that the file to be opened does not exist.An error will be produced stating that filename is not subscriptable.A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened.

Answered: A student launches the Python…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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A student launches the Python interpreter from his home directory. His home directory contains another directory called 'mydir', and 'mydir' contains two files called 'foo' and 'bar'. The home directory does not contain any files, only other directories. What will happen when he writes the following code at the Python prompt:

>>> import os
>>> filenames = os.listdir('mydir')
>>> f= open(filenames[0])

=====================================================================================

A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened for writing in text mode.
An error will be produced stating that the file to be opened does not exist.
An error will be produced stating that filename is not subscriptable.
A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened.

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