What is the os.close() method in Python?
Overview
Python’s os.close() method closes a given file descriptor.
A file descriptor refers to a number that identifies an open file uniquely. It performs various I/O operations like writing and reading.
Syntax
os.close(fileDescriptor)
Parameter
This method accepts the following parameter:
fileDescriptor: This is the descriptor of the file that is to be closed.
Example
Let’s look at an example of the os.close() method in the code snippet below:
main.py
demo.txt
# import os moduleimport os# file pathfilePath = 'demo.txt'# using os.open() to open the file# and create its file descriptorfileDescriptor = os.open(filePath, os.O_RDWR)### some I/O operations## using os.close() to close the file descriptoros.close(fileDescriptor)
Explanation
- Line 2: We import the
osmodule. - Line 5: We declare a variable,
filePath, containing the file path. - Line 9: We use the
os.open()method to open the file and create its file descriptor. - Line 16: We use the
os.close()method to close the file descriptor.
The specified file descriptor will be closed after using this method.