Lesson-1 : Variables

This blog assumes that you have a Linux machine with Python already installed.

If you don't, then you can use an AWS cloud based image with Python.  For guidance, refer to my blog.

I am using Python 2.7 for this tutorial.

VARIABLES

Variables in Python are declared simply as follows.

variable = value

The data type of the variable is automatically assumed based on the value you provide.

a = 2

The above is an example of declaring and assigning a value to variable a. Since 2 is an integer, the data type automatically becomes integer.

Other examples:

b = 'String1'

c = " String2"
d = 3.2

Notice that single or double or triple quotes can be used for strings.

d is a float.

Example Program-1

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#! /bin/python

int1 = 12
int2 = 14

str1 = 'Abraham'
str2 = "Lincoln"

float1 = 5.4
float2 = 2.0

# Print the values of the variable

print "\n int1 = ", int1
print "\n int2 = ", int2
print "\n float1 = ", float1;  # Semicolon is optional if you love it so much!
print "\n float2 = ", float2
print "\n str1 = ", str1
print "\n str2 = ", str2, "\n"
print ("Done!"), str2

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