os.getenv() Syntax in Python
Syntax: os.getenv(key, default = None)
Parameters:
- key: string denoting the name of environment variable default (optional) : string denoting the default value in case key does not exists. If omitted default is set to ‘None’.
Return Type: This method returns a string that denotes the value of the os environment variable key. In case key does not exists it returns the value of default parameter.
Python | os.getenv() method
OS module in Python provides functions for interacting with the operating system. OS comes under Python OS env standard utility modules. This module provides a portable way of using operating system-dependent functionality.
os.getenv() method in Python OS env returns the value of the os environment variable key if it exists otherwise returns the default value.