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Python Practice › OS Module Programs › Program 2

Read an environment variable

EasyOS Module Programs · 2 of 49

Write a Python program to read an environment variable.

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Output
True
development

Approach

  1. os.environ.get(name, default) or os.getenv(name, default).

Solution

Python
import os print("PATH" in os.environ)print(os.getenv("APP_MODE", "development"))
Output
True
development

Line by line

Line 4

APP_MODE is not set, so the default is returned instead of an error.

Learn the concept

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More os module programs

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