Tutorial Playlist
47 Lessons1. Introduction to Operating System
2. Types of Operating Systems
3. Linux Operating System
4. An Introduction To Unix Operating System
5. Ubuntu Operating System
6. MS DOS Operating System
7. Mobile Operating System
8. Understanding Functions of Operating System
9. Components of Operating System
10. Understanding the Kernel in Operating Systems
11. Structure of Operating System
12. Process in Operating System
13. What is Bios
14. What is Booting in Computer
15. What is Interrupt in Operating System?
16. Process Control Block in Operating Systems
17. Threads in Operating System
18. Process Synchronization in OS
19. Critical Section in OS
20. Semaphore in Operating System
21. Deadlock in Operating System
22. Deadlock Prevention in OS
23. Paging in Operating System
24. Segmentation in Operating System
25. Virtual Memory in Operating System
26. File System in Operating Systems
27. Page Table in OS
28. Round Robin Scheduling in Operating System
29. Shortest Job First Scheduling Algorithm
30. Priority Scheduling in OS
31. Page Replacement Algorithms in Operating System
32. Race Condition in OS
33. Distributed Operating System
34. Navigating Contiguous Memory Allocation in Operating Systems
35. Fragmentation in Operating System
36. Banker’s Algorithm in OS
37. Context Switching in OS
38. First Come First Serve (FCFS) Scheduling Algorithm in Operating System
39. Understanding Inter Process Communication in OS
40. Multiprogramming Operating System
41. Python OS Module
Now Reading
42. Preemptive Priority Scheduling Algorithm
43. Resource Allocation Graph in OS
44. Scheduling Algorithms in OS
45. System Calls In Operating System
46. Thrashing in Operating Systems: A Deep Dive
47. Time Sharing Operating System
Hello there, my fellow Pythonistas! You have been reading up and learning about operating systems and their intricate world so far. Now, let’s take a step further. You must have knowledge of working with Python programming language – if not, you should really check out upGrad’s courses and certifications that are designed especially for you.
Anyway, getting back to our topic for the day – how do you use Python to work with system-level processes or for system-level operations? The answer lies in the Python OS module.
In this tutorial, I will be giving you a comprehensive overview of the Python OS module, including various Python OS commands, Python OS module examples, and more!
Take this as your brief, friendly OS module Python tutorial. Let’s begin!
Picture yourself as a top chef in a kitchen. You have to move around the pantry, get ingredients and handle your recipe files. In the same way that you, as a chef, require tools for smooth functioning in the kitchen area, Python also offers its own powerful instrument to communicate with the operating system – that is, the Python OS module.
The Python OS module, which is also referred to as the OS library in Python, can be described as an integrated module. It provides various functions and methods for performing tasks related to the operating system. This includes interacting at a basic level with operating systems, changing files and directories, getting information about the system running on it and executing commands in the system shell.
By the end of this tutorial, you’ll have a good understanding of what are the different commands and functions in this OS library in Python, but before that let’s look at the very basics – how to import OS in Python?
When you begin usingthe Python OS module, you must first import it into your Python script. The import statement is akin to sending an invitation for the OS module to participate in your coding gathering. Here's how one can use the import OS module in Python:
import os
By importing the Python OS module, you gain access to a plethora of functions and methods that make system interactions a breeze.
Let’s understand some of these functions and commands – starting with Python OS commands first!
The Python OS module offers many different kinds of instructions or functions to do various tasks. Some common Python OS commands are:
These are only some instances of the various Python OS commands. Every command has its unique role, enabling productive interaction with the operating system.
Now, let’s look at some of the OS module methods in Python.
Besides the commands, the Python OS module also offers a variety of methods for carrying out different actions. Let's look into some frequently used OS module methods in Python:
These methods offer simple approaches to handle file paths, get file details, and move through directory structures.
If working around with Python programming language in this way fascinates you, where you get more hands-on with your system and play around with the more basic level of abstraction, then you’re the perfect candidate for upGrad’s courses on computer science and engineering. I recommend you check out the course list and get yourself enrolled in the course of your choice!
Now, let’s look at some Python OS module examples.
Here are some instances to show how the Python OS module is employed:
import os
path = "/home/user/documents"
files = os.listdir(path)
for file in files:
print(file)
import os
path = "/home/user/new_directory"
os.mkdir(path)
print(f"Created directory: {path}")
Checking if a file exists:
import os
file_path = "/home/user/documents/example.txt"
if os.path.exists(file_path):
print("File exists.")
else:
print("File does not exist.")
The given instances show the practical use of the Python OS module in carrying out basic tasks like file listing, directory making, and file existence checking.
The Python OS module offers a wide range of functionalities and benefits, but it also has some limitations. Let's explore the advantages and disadvantages of using the Python OS module.
Here are some of the most straightforward advantages offered by the Python OS module:
Despite these advantages, there are also some disadvantages to look out for, including:
However, even with these downsides, the Python OS module is still useful for working on system-level tasks and managing files. Knowing its advantages and constraints will help you use the OS module efficiently to create strong and effective Python apps that interact with the operating system.
The Python OS module is like a key that unlocks many doors, giving you access to interact with the operating system and handle files and directories. It provides different commands and methods for working on the system level, automating tasks related to file management, as well as creating strong applications that smoothly fit into the base operating system.
In this tutorial, we examined the basics of the Python OS module, its main commands and methods. We also looked at some useful examples. After learning the Python OS module, you will have good skills for handling system tasks and creating well-functioning Python programs.
If you are excited to grow your Python skills and learn complex subjects, I suggest checking the many courses available at upGrad. They offer a variety of learning paths for different areas, such as computer science, software engineering, and more, to help you become an expert in Python development.
Play around with various commands, test out file and directory operations, and let your imagination run wild as you develop impressive Python apps that communicate with the operating system.
Happy coding, and may your Python journey be filled with exciting system-level adventures.
The OS module in Python is an included module that makes it possible to communicate with the operating system. It has functions and methods for handling files and directories, getting system details, as well as running system commands.
When you want to read a file with the help of the Python os module, initially use the os.open() function for opening the file and afterward use the os.read() function to go through the content present in that particular file. For example:
import os
file_path = "/path/to/file.txt"
file_descriptor = os.open(file_path, os.O_RDONLY)
file_contents = os.read(file_descriptor, os.path.getsize(file_path))
os.close(file_descriptor)
The Python OS module is for managing a variety of tasks that relate to interacting with the operating system. It handles operations like file and directory management, retrieving system information, dealing with environment variables, managing processes and running system commands.
Python's OS module has various functions for managing tasks related to the operating system. These include making and removing files, creating and deleting directories, getting information about files, changing the current working directory, running system commands, and accessing environment variables.
For making a file with the Python OS module, you can use the os.open() function by providing the right flags and mode. Here is an instance:
import os
file_path = "/path/to/new_file.txt"
file_descriptor = os.open(file_path, os.O_WRONLY | os.O_CREAT, 0o644)
os.close(file_descriptor)
No, in Python, you don't have to install the OS module separately. It's part of Python's standard library, so it comes already included and doesn't need separate installation.
In Python, OS is categorized as a module, not a library. A module is just one file that has Python definitions and statements in it, while a library is a collection of modules. The OS module specifically is an inherent part of Python that offers various functions and methods to work with the operating system.
For opening a file in Python with the help of the OS module, you can use the function os.open(). It needs the file path and flags as inputs while delivering back a descriptor of the file. Here is an instance:
import os
file_path = "/path/to/file.txt"
file_descriptor = os.open(file_path, os.O_RDONLY)
# Perform file operations using the file descriptor
os.close(file_descriptor)
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upGrad does not grant credit; credits are granted, accepted or transferred at the sole discretion of the relevant educational institution offering the diploma or degree. We advise you to enquire further regarding the suitability of this program for your academic, professional requirements and job prospects before enr...