[Solved] What issue arises from this code snippet if the environment variable MAX_CONNECTIONS is not set?import os max_conn = int(os.getenv('MAX_CONNECTIONS')) print(max_conn) | Python

Python - Standard Library Usage

What issue arises from this code snippet if the environment variable MAX_CONNECTIONS is not set?

import os
max_conn = int(os.getenv('MAX_CONNECTIONS'))
print(max_conn)

ANo error, prints None

BValueError because os.getenv returns empty string

CPrints 0 by default

DTypeError because int(None) is invalid

Step-by-Step Solution

Solution:

Step 1: Behavior of os.getenv when variable missing
os.getenv returns None if variable not set and no default provided.
Step 2: Conversion to int
int(None) raises TypeError because None cannot be converted to int.
Final Answer:
TypeError because int(None) is invalid -> Option D
Quick Check:
int(None) causes TypeError [OK]

Quick Trick: int(None) raises TypeError, provide default [OK]

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What issue arises from this code snippet if the environment variable MAX_CONNECTIONS is not set?