OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality.
os.fchdir() method in Python is used to change the current working directory to the directory represented by the given file descriptor.
A file descriptor is small integer value that corresponds to a file or other input/output resource, such as a pipe or network socket. A File descriptor is an abstract indicator of a resource and act as handle to perform various lower level I/O operations like read, write, send etc.
For Example: Standard input is usually file descriptor with value 0, standard output is usually file descriptor with value 1 and standard error is usually file descriptor with value 2.
Further files opened by the current process will get the value 3, 4, 5 an so on.
os.fchdir() method is equivalent to
fd: A file descriptor. The file descriptor must represent an opened directory not an open file.
Return Type: This method does not return any value.
Current working directory: /home/ihritik Current working directory changed Current working directory: /home/ihritik/Documents
Traceback (most recent call last): File "changeDir.py", line 24, in os.fchdir(fd) NotADirectoryError: [Errno 20] Not a directory
The given file descriptor does not represent a directory
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