Dynamic typing in Python - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does dynamic typing mean in Python?

Dynamic typing means you don't have to declare variable types explicitly. Python figures out the type when you assign a value.

beginner

Can a Python variable change its type during the program?

Yes! A variable can hold a value of one type and later hold a value of a different type without errors.

beginner

Example: What is the type of 'x' after these lines?<br>

x = 5<br>x = 'hello'

After the first line, x is an integer. After the second line, x becomes a string. Python changes the type automatically.

intermediate

Does dynamic typing mean Python is weakly typed?

No. Python is strongly typed because it keeps track of types and does not allow mixing incompatible types without explicit conversion.

beginner

Why is dynamic typing helpful for beginners?

It lets you write code faster without worrying about types. You can focus on solving problems instead of declaring types.

What happens when you assign a new value of a different type to a Python variable?

A The program crashes.

B Python throws a type error.

C The variable keeps the old type.

D The variable changes to the new type automatically.

Python variables can change types dynamically when assigned new values.

Which of these is true about Python's typing?

A Python is statically typed.

B Python requires explicit type declarations.

C Python is dynamically typed.

D Python variables cannot change type.

Python determines variable types at runtime, so it is dynamically typed.

Is Python strongly typed or weakly typed?

A Strongly typed

B Weakly typed

C Neither

D Both

Python is strongly typed because it enforces type rules and does not allow implicit mixing of incompatible types.

What is a benefit of dynamic typing for new programmers?

A They must declare all types before use.

B They can write code without worrying about types.

C They cannot change variable types.

D They must convert types manually all the time.

Dynamic typing lets beginners focus on logic without declaring types.

What type will variable 'a' have after these lines?<br>

a = 10<br>a = 3.14

A float

B str

C int

D bool

After assigning 3.14, 'a' becomes a float type.

Explain what dynamic typing means in Python and how it affects variable usage.

Think about how Python handles variable types when you assign new values.

Describe the difference between dynamic typing and strong typing in Python.

Consider how Python decides types and how strictly it enforces type rules.