Python · Theory

Data Types in Python

Theory

14/268

Data Types in Python

Data types say what kind of value you have. Scalars you meet daily: int, float, bool, str. Collections: list, tuple, set, dict. None has type NoneType. type(x) prints the type. Everything is an object — even 5 and print.

Pick the right box. Marks as int or float. A name as str. A row of names as list. A labelled record as dict. Using a list when you needed a dict makes lookup painful. Viva: name four scalars and four collections separately.

Data Types in Python — output — <class 'int'> 40, then float 1999.5, then bool True.

Exam tip

Scalar types and collection types separately.

Example

# Data types
seats = 40
fee = 1999.5
open_ = True
print(type(seats), seats)
print(type(fee), fee)
print(type(open_), open_)

Data Types in Python — output: <class 'int'> 40, then float 1999.5, then bool True.

Short notes

Defint float bool str + collections.
Ruletype(x) to check.
Rememberlist tuple set dict.

Python · Theory

Data Types in Python

← All stacks

Theory

14/268

Data Types in Python

Data Types in Python — output — <class 'int'> 40, then float 1999.5, then bool True.

Exam tip

Scalar types and collection types separately.

Example

# Data types
seats = 40
fee = 1999.5
open_ = True
print(type(seats), seats)
print(type(fee), fee)
print(type(open_), open_)

Data Types in Python — output: <class 'int'> 40, then float 1999.5, then bool True.

Short notes

Defint float bool str + collections.
Ruletype(x) to check.
Rememberlist tuple set dict.

Data Types in Python

Example

Short notes

Questions

Data Types in Python

Example

Short notes

Questions