INTRODUCTION for....PYTHON

Basic for PYTHON.....

-March 2.3.2020

CONCEPT:

Introduction for Python.....and basic method.

today class for..

#LIST  []

#SORTING

#TUPLES ()

#SET  {}

                              #LIST []

Example 1:

fruits=['apple', 'orange', 'cherry']

print(fruits)

output:

('apple', 'orange', 'cherry')

Example 2:

fruits=['apple','orange','cherry']

print(fruits[1])

output:

orange

Example 3:

fruits=['apple','orange','cherry']

print(fruits[1:3])

output:

orange, cherry

Example 4:

fruits=['apple','orange','cherry']

print(fruits[-1])

output:

cherry

Example 5:

fruits=['apple','orange','cherry']           

fruits[1]='banana'

print(fruits)

output:

['apple','banana','cherry']

Example 6:

 

fruits.append('banana')                       #Append used for  JOIN ONE STRING.

print(fruits)

output:

['apple','orange','cherry', 'banana']

                                                     #SORTING

number=[11, 2, 20, 0]

number.sort()

print(number)                                       #SORTING IS USED FOR ARRANGING THE  NUMBER 

 output:                                                     FROM ASCENDING  TO DESCENDING

[0, 2, 11, 20]

Example 2:

number=[11, 2, 20, 0]

number.sort(reverse=true)

print(number) 
output:
[ 20, 11, 2, 0]   

                                                   #TUPLES ()


fruits=['apple','orange','cherry']
number=[11, 2, 20, 0]
print(fruits+number)                     #A Tuples is a collection  which is order and  UNCHANGEABLE.
output:
['apple','orange','cherry', 11, 2, 20, 0]

                                                   #SET{}

fruits={'apple','orange','cherry'}
print(fruits)
number=(11, 2, 20, 0)                           #Set  is Use for Changing the order
print(number)

output:

{'apple','orange','cherry'}

(11, 2, 20, 0)

                                                

 

PYTHON INTRODUCTION.........simple to learn.

Basic for PYTHON.....

-March 1.3.2020

CONCEPT:

Introduction  for Python.......and basic method.

PYTHON FACTS:

-This Developed  by GUIDO VAN ROSSUM and released on February 20,  IN 1991.

IMPORTANT  3 THINKS.

Indentation----> TO Avoid Unnecessary Space.

Colon        ----> This must for Python.

Function:

CONTENTS:-

Primitives--> Number, strings, Boolean . 

#INTEGERS --1, 2, 3, 4..........Numbers.

#FLOAT-- 1.2 , 5.6, 9.5,

#COMPLEX-- 5+2j

                                               #VARIABLES

Example 1:

  Watch=500

  print(Watch)

output:

     500

Example 2:

  Watch=500

   print(Watch+20)

output:

520

    

                                             #STRING METHOD.

Example 1:

word1="hi dude"

word2="my age is 24!"

print(word2)

out put:

my age is 24!

IN PYTHON STRING CONVERTED  IN ARRAY.

Array start in ZERO.

INDICES:

word1="HELLO"

print(word1[3])

output:

L

SLICING:

word3="HELLO"

print(word3[1:3])                       

output:

EL                                         #Before array value in 3.

LENGTH:

word3="hello,  world"

print(len(word3))            #keyword------len

output:

12

STRIP()

word2="    my age  is 19"

print(word2)                           #Strip is used in removed in unnecessary space.

output:                                     

Error                  #because  word2    using unnecessary   space.

word2="my age is 19"

print(word2)

output:

my age is 19

BOOLEAN:

Example 1:

   word3="hello"

   print("hell" in word3)                 #Boolean

                                                    #out put is --------> TRUE , FALSE

output:

TRUE

Example 2:

   word3="latha"

   print("hell"in word3)

output:

FALSE