Level 1 exam — Python · GUIDINEE.COM

Exam — fresh questions

12 questions to validate Python language basics: variables, conditions, loops, functions and hands-on practice.
Answer everything, then click Check: your score and explanations will appear.

1.1 · Recall

1. What does the input() function always return?

A string (text), to convert A boolean Nothing at all A number, ready to compute

input() ALWAYS returns text: int() or float() before any computation.

1.1 · Application

2. Nabil writes print("I am " + age) with age = 30. What happens?

TypeError: you don't mix text and numbers without conversion "I am 30" displays correctly The program converts by itself Nothing displays

Strong typing: convert (str(age)) or use an f-string f"I am {age} years old".

1.2 · Recall

3. In Python, what is indentation for?

To speed up execution To nothing To delimit blocks (it is mandatory) To decorate the code

4 spaces per level; mixing spaces/tabs raises IndentationError.

1.2 · Application

4. Nabil classifies: if age < 12, elif age < 18, elif age < 65, else. Where does a 26-year-old respondent fall?

In two groups at once Nowhere Only in elif age < 65 (first true in order) Always in the else

Evaluation in order, stopping at the first true one: specific→general order guarantees uniqueness.

1.3 · Application

5. Nabil walks through a list of names. Recommended writing?

for i in range(len(names)) with names[i] everywhere while True with no break goto to each item for name in names: ... (plain for)

Plain for is readable and index-error free; enumerate() if the number is used.

1.3 · Recall

6. When should you prefer while over for?

When you repeat until a condition with an unknown number of rounds Never Only for text When you walk through a known sequence

for = what you walk through; while = as long as, with guaranteed exit.

1.4 · Application

7. Nabil's function displays with print but forgets return. What is the call worth?

The last local variable The displayed text Always an error None — print displays but passes nothing on

Only return passes on a storable, computable result.

1.4 · Application

8. Nabil writes def add(x, items=[]) and calls it twice. What happens?

Each call restarts from an empty list The list survives between calls: [1] then [1, 2] — surprise The program refuses to start Both calls return None

The mutable default is created only once: write def add(x, items=None).

1.2 · Arbitration

9. Two tests overlap and a case falls into the wrong group. Decision?

Mix spaces and tabs Reorder from most specific to most general + final else Add even more nested ifs Remove the else to go faster

Order guarantees uniqueness; else catches oversights.

1.3 · Arbitration

10. Nabil's retry while runs forever. Decision?

Wait for it to finish by itself Remove the condition entirely Replace with three nested comprehensions Guarantee the exit: changing counter + break on success

One variable of the condition must change each round; Ctrl+C unblocks.

1.5 · Application

11. In Nabil's address book, where should the menu loop be?

Nowhere, the menu is useless In main(), which calls the verb-functions Copied in each function In a global variable

One verb = one function; main() holds only the menu loop that calls.

1.5 · Arbitration

12. Nabil knows each concept in isolation but freezes facing the blank page. Decision?

Re-read the syntax again without practicing Move to level 2 without finishing the address book Decompose: pseudo-code, one function per verb, assemble step by step Write 80 messy lines at once

Decomposition beats the blank page; one finished project alone proves the foundation.

What's next?

Score ≥ 80%: move to Level 2 V3 (collections, strings, files and objects — handling structured data and keeping it).
Score between 50% and 80%: revisit the failed sections (conversions in 1.1, indentation in 1.2, for/while in 1.3, return and defaults in 1.4, splitting in 1.5), re-read the explanations above, then retake the test.
Score < 50%: restart the level running each template locally — the 1.5 address book is the judge: code it alone before moving on.