Variables, Data Types, and Typecasting | Python Tutorials for Absolute Beginners

Variables in Python

It means that there are variables which helps one and store data that can be used and manipulated in all the programs. What is even important to know about Python is that Python variables do not require variable typing. In Python, type is not declared; type deduced depends on the value which is assigned to the type.

Example:

Data Types in Python

Numeric Types: int, float, complex

Sequence Types: str, list, tuple

Mapping Type: dict

Set Types: set, frozenset

Boolean Type: bool

None Type: NoneType

Example:

Typecasting (Type Conversion)

Typecasting is the conversion of an indicated value to a particular data type of the process of transforming one datatype into another datatype. This shows that type conversion in Python can be done using the cast functions, which are already pre-included in the language.

Example:

Summary

A variable is therefore a named entity that acts as a receptacle of holding data values. In Python you associate a value to a variable and then Python its self decides the type of the variable.
Data type describes the type of values that can be stored in a variable. Python contains different integrated simple types such as integer number, floating point number, string, list, tuple, dictionary, set and boolean.

Typecasting can be defined as the act of converting one type of data to the other by means of functions including int (), float (), str (), list (), tuple (), etc.

It is important to get these basics right, so let’s take a quick look on how data can be dealt with in Python. A couple more posts down and we’ll be done with this week’s letter! Feel free to ask if you have any questions or need me to use more examples.

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