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Introduction Python Examples - If else Programs CBSE
Data Types and Variables - Python Language
428    Arnab De    05/09/2020   

Data Types

In any computer programming language, data type defines how a data store in memory. How much memory size occupied by a data is also determined by data types. Like other languages Python has also the following built-in data types.

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Text Type str
Numeric Types int, float, complex
Sequence Types list, tuple, range
Mapping Type dict
Set Types

set, frozenset

Boolean Type bool
Binary Types bytes, bytearray, memoryview
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Variables

A variable is named memory location. That means a variable basically allocates a memory location, which is mapped with a name called variable name. In python, we can declare a variable without any data type. But its data type was set just after we assign a value to it.

 

Rules of a variable names

  • A variable name must start with a letter or the underscore character.
  • A variable name cannot start with a number.
  • A variable name can only contain alpha-numeric characters and underscores
  • Variable names are case-sensitive (Name, name and NAME are three different variables)
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Assign multiple variables with multiple values in one line

We can assign multiple values in different variables in a line.

x,y,z=10,20,30

This line is equivalent to

x=10

y=20

z=30

Assign multiple variables with the same value

x=y=z=10

This line is equivalent to

x=10

y=10

z=10

Introduction Python Examples - If else Programs CBSE
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Author Details
Arnab De
I have over 16 years of experience working as an IT professional, ranging from teaching at my own institute to being a computer faculty at different leading institute across Kolkata. I also work as a web developer and designer, having worked for renowned companies and brand. Through tutorialathome, I wish to share my years of knowledge with the readers.
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