Python - Conditional Statements
You want to create a dictionary where keys are numbers 1 to 5 and values are "Even" or "Odd" using a ternary expression inside a dictionary comprehension. Which code is correct?
You want to create a dictionary where keys are numbers 1 to 5 and values are "Even" or "Odd" using a ternary expression inside a dictionary comprehension. Which code is correct?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand dictionary comprehension syntax
It must be{key: value for variable in iterable}. The value can use a ternary expression.Step 2: Check ternary expression placement
d = {x: ("Even" if x % 2 == 0 else "Odd") for x in range(1,6)} correctly wraps the ternary expression in parentheses for clarity and correct parsing.Step 3: Identify incorrect options
d = {x: "Even" if x % 2 == 0 "Odd" for x in range(1,6)} misses theelsekeyword, causing SyntaxError; d = {x if x % 2 == 0 else "Odd": x for x in range(1,6)} misplaces ternary in key. d = {x: "Even" else "Odd" if x % 2 == 0 for x in range(1,6)} has invalid syntax.Final Answer:
d = {x: ("Even" if x % 2 == 0 else "Odd") for x in range(1,6)} -> Option BQuick Check:
Use parentheses around ternary in dict comprehension [OK]
Quick Trick: Wrap ternary in parentheses inside dict comprehension [OK]
Common Mistakes:
MISTAKES- Placing ternary in key instead of value
- Missing parentheses causing syntax errors
- Using else before if in ternary
Master "Conditional Statements" in Python
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