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Check Eligibility to Vote in Python

18 or older. Negative age is garbage, not "not eligible".

BeginnerConditional ProgramsExample 4 of 20
check-eligibility-to-vote.py
1# Program to check voting eligibility
2

3age = int(input("Enter your age: "))
4

5if age < 0:
6    print("Age cannot be negative.")
7elif age >= 18:
8    print("You are eligible to vote.")
9else:
10    print("You are not eligible to vote yet.")

Output

Enter your age: 17
You are not eligible to vote yet.

In this one

  • >= 18, not > 18
  • negative age is invalid, not a no

What's going on

age >= 18. That's the law this file pretends to know.

Negative age is not "not eligible yet". It's a bad input. Handle it first or you print a polite lie.

17 prints "not eligible yet". 18 prints eligible. Off-by-one here is a real-world bug.

After this program

If the idea is still fuzzy, read Day 8: Conditional Statements in the Python course. For a short check, try the Python quiz (300 questions). Stay with all 20 conditional programs, or see every topic on Python exercises.

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