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Identify the invalid Python ternary expression:

easy📝 Syntax Q3 of 15
Python - Conditional Statements
Identify the invalid Python ternary expression:
Aoutput = 'Yes' if else 'No'
Boutput = 'Pass' if score >= 50 else 'Fail'
Coutput = 'High' if score > 80 else 'Low'
Doutput = 'Active' if status == 'on' else 'Inactive'
Step-by-Step Solution
Solution:

  1. Step 1: Review ternary syntax

    Python ternary expressions require a condition between the 'if' and 'else' parts.

  2. Step 2: Check each option

    output = 'Yes' if else 'No' is missing the condition after 'if', making it invalid syntax.

  3. Final Answer:

    output = 'Yes' if else 'No' -> Option A

  4. Quick Check:

    Ensure condition exists between 'if' and 'else' [OK]
Quick Trick: Ternary must have condition between 'if' and 'else' [OK]
Common Mistakes:
MISTAKES
  • Omitting the condition after 'if'
  • Using multiple 'else' keywords
  • Incorrect ordering of 'if' and 'else'

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