Exercise to practice Python for loops

exercise-python-for-loop.md

Practice: for loop

Iteration 1

You have a list of AI models. Print each one on its own line.

models = ["GPT-4", "Claude", "Gemini", "Llama", "Mistral"]

Expected output:

GPT-4
Claude
Gemini
Llama
Mistral

Solution – Iteration 1

models = ["GPT-4", "Claude", "Gemini", "Llama", "Mistral"]

for model in models:
    print(model)

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Iteration 2

Now print each model with its position in the list (starting at 1).

Expected output:

1. GPT-4
2. Claude
3. Gemini
4. Llama
5. Mistral

Solution – Iteration 2

models = ["GPT-4", "Claude", "Gemini", "Llama", "Mistral"]

for i, model in enumerate(models):
    print(f"{i + 1}. {model}")

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Bonus 1

Count how many models have a name shorter than 6 characters, and print the result.

Solution – Bonus 1

models = ["GPT-4", "Claude", "Gemini", "Llama", "Mistral"]

count = 0
for model in models:
    if len(model) < 6:
        count += 1

print(f"Models with short names: {count}")

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Bonus 2

Ask the user to enter a model name. Loop through the list and print "Found it!" if it matches, or "Not found." if it doesn't.

Solution – Bonus 2

models = ["GPT-4", "Claude", "Gemini", "Llama", "Mistral"]

search = input("Enter a model name: ")

for model in models:
    if model == search:
        print("Found it!")
        break
else:
    print("Not found.")