Python - Lesson 1 - Homework 01

Print it. Predict it.
Fix it. Build it.

A first Python homework on arithmetic, print(), data types, casting, common errors, and string operations.

print("Small steps", "real code", sep=" -> ")

Student nameGroupDue date

What you will practise

Use arithmetic operators correctly
Control output with sep and end
Recognise str, int, and float
Fix syntax and type errors

How to complete it

Predict before running code.
Check in Python.
Correct your mistakes.
Finish the three programs.

Part A

Run the code in your head

Write the exact output. Then choose the result type.

12 points

1Addition

print(8 + 5)

Exact output

Result type

intfloat

2Subtraction

print(14 - 9)

Exact output

Result type

intfloat

3Multiplication

print(6 * 4)

Exact output

Result type

intfloat

4Division

print(17 / 5)

Exact output

Result type

intfloat

5Floor division

print(17 // 5)

Exact output

Result type

intfloat

6Power

print(2 ** 5)

Exact output

Result type

intfloat

7Order matters

print(2 + 3 * 4)

Exact output

Result type

intfloat

8Parentheses

print((2 + 3) * 4)

Exact output

Result type

intfloat

Type check

Choose string, integer, or floating-point for each value.

Partial result

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Part B

Control the output with print()

Write exact output with normal spaces and line breaks.

12 points

1Default separator

print("Ali", "Vali")

Exact output

2Custom separator

print("Ali", "Vali", sep="+")

Exact output

3One line, then a new line

print("A", end="")
print("B")
print("C")

Exact output

4sep and end together

print("Python", "Lesson", "1", sep=" | ", end="!")

Exact output

5Two print calls, one line

print("Dombit", end=" -> ")
print("Python")

Exact output

6Think carefully

print("A", "B", sep="", end="-")
print("C", end="!")

Exact output

Write the print statement

Use the requested print() options.

7Produce: red|green|blue

Use one print() and sep.

Python statement(s)

8Produce: Loading...DONE

Use two print() calls and end.

Python statement(s)

9Produce: A-B-C!

Use one print(), sep, and end.

Python statement(s)

Partial result

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Part C

Bug lab: will it run?

Choose RUNS or ERROR. Explain the result and add a corrected line or exact output.

12 points

1Missing quote

print('Alice)

Will it run?

RUNSERROR

Why? Corrected line or exact output

2String + integer

name = "Alice"
age = 42
print(name + age)

Will it run?

RUNSERROR

Why? Corrected line or exact output

3String x string

print("ha" * "3")

Will it run?

RUNSERROR

Why? Corrected line or exact output

4Looks suspicious

print("Alice" + "42")

Will it run?

RUNSERROR

Why? Corrected line or exact output

5Float inside concatenation

score = 9.5
print("Score: " + score)

Will it run?

RUNSERROR

Why? Corrected line or exact output

6end needs a string

print("A", end=!)

Will it run?

RUNSERROR

Why? Corrected line or exact output

7One argument only

print("Dombit", sep="-")

Will it run?

RUNSERROR

Why? Corrected line or exact output

8Casting first

age = 42
print("Age: " + str(age))

Will it run?

RUNSERROR

Why? Corrected line or exact output

Remember Newer Python versions usually say unterminated string literal for an unclosed quote.

Partial result

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Part D

String workshop

Predict each result, then build a small banner.

10 points

1Predict the output

print("Py" + "thon")

Exact output

2Predict the output

print("ha" * 4)

Exact output

3Predict the output

print("-" * 10)

Exact output

4Predict the output

print("A" + "B" * 3)

Exact output

5Predict the output

print(("A" + "B") * 3)

Exact output

6Predict the output

print("Dombit " * 3)

Exact output

7Complete the banner

Fill in the code so it prints a 20-character border and the line Dombit Python.

print("=" * _____)
print("Dombit" + _____ + "Python")
print("=" * _____)

Completed code

8Write your own

Create a three-line banner for your name. Use concatenation, string multiplication, and at least 16 characters per line.

Your banner code

Partial result

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Programs

Build three Python files

Use variables so each program updates automatically when starter values change.

54 points

Program 1

Dombit Student Card

student_card.py

Starter variables

name = "Aziza"
group = "Python-1"
age = 15
average = 92.5

Required output

============================
DOMBIT STUDENT CARD
Name: Aziza
Group: Python-1
Age: 15
Average: 92.5
============================

Create the border with "=" * 28
Use sep="" and end="" at least once
Use str(age) in one concatenation
Do not hard-code the variable values in output strings

student_card.py codeSecond-test output for Jasur, Python-2, 17, 88.0

Program 2

Dombit Mini Calculator

mini_calculator.py

Starter code

a = 17
b = 5

Required output

A = 17 | B = 5
A + B = 22
A - B = 12
A * B = 85
A / B = 3.4
A // B = 3
B ** 2 = 25

Use all six operators: + - * / // **
Calculate inside the print() calls
Use sep="" and do not hard-code any answers

mini_calculator.py codeSeven output lines when a = 20 and b = 4

Program 3

Mad Line: The Python Lesson

mad_line.py

Starter variables

student = "Aziza"
topic = "Python"
times = 3
score = 9.5

Required output

Aziza entered Dombit and opened Python.
"Practice!" appeared 3 times:
Practice! Practice! Practice!
Her first score was 9.5/10.

Use all four variables and cast times and score
Use string multiplication for the practice line
Use single and double quotes correctly
Produce exactly four output lines

mad_line.py code

Bonus +2

Pixel badge

++++++++++++++
+   DOMBIT   +
++++++++++++++

Optional pixel_badge.py code

Reflection

Which error was easiest to understand? Which one was hardest, and what did the error message help you notice?

Write your reflection

Partial result

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Homework 01

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