Python OS Module

Python OS module provides a way of using operating system-dependent functionality. The OS module’s functions allow you to interface with the underlying operating system that Python is running on: Windows, macOS, or Linux.

import os

os.name()

The os.name() function gives the name of the OS module it imports. This differs based on the underlying Operating System. 

Example

import os

print(os.name)

Output

os.environ()

The environ is not a function but a process parameter through which we can access the environment variables of the system.

Example

import os

print(os.environ)

Output

os.getcwd()

The getcwd function of the OS module will give us the current directory of the project.

Example

import os

print(os.getcwd())

Output

If you want to make a new directory, type the following code.

os.execvp()

The execvp() function is one of the ways to run other commands on the system. Let’s see the following example.

Example

student = {
  'name': 'Krunal',
  'enno': 21,
  'college': 'vvp college'
}

print(student)

Now, write the following code inside the app.py file.

import os

program = 'python'
arguments = ['mod.py']
print(os.execvp(program, (program,) + tuple(arguments)))

Output

That’s it.