EASY TO LEARNING IN PYTHON: 2020

Monday, August 10, 2020

LOOPS.......LET SEE ..VERY SIMPLE

LOOPS:

1.What is can do by using LOOPS?

-> Using loops we can execute a single statement (or) Multiple statement more than one time.

2.When we will go for loops?

->When ever we want to execute a single statement (or )multiple statement more than

one time.

TYPE OF LOOPS:

1.FOR LOOP.

2.WHILE LOOP.

3.FOR LOOP with ELSE.

FOR LOOP:

<syntax>

for <variablename>in range (<starting range>,<ending range+1>):

logic

PROGRAM:

for i in range(1,6):

print(i)

output:

TRACING:

What range() function will do?

-> range() function will initialize given starting value.

2) into i, and it will compare i with ending range if condition is true then it will

execute after execute it will go for auto increment by one.....

PROGRAM 2:

for i in range (1,6):

print(i,end=" ")

output:

1,2,3,4,5

Trace :

WHILE LOOP:

while<condition>:

logic

PROGRAM:

i=1

while i<=5:

print(i)

i=i+1

output:

TASK1:

Write a python program to print 1 to 5 number like below by using while loop.

program:

i=5

while i>=1:

print(i,end=" ")

i=i-1

output:

5 4 3 2 1

TRACE:

FOR LOOP WITH ELSE:

->Generally else part will there for only conditional statement ....but in python else part is

available for loop.

for<variablename>in range(<string range >,<ending range +1>):

logic

program:

for i in range(1,4):

pin =int (input("enter ur pin:"))

if pin ==1122:

print("valid pin")

break

else:

print("you entered invalid pin,you account is blocked")

output:

enter pin:111

enter pin:222

enter pin:333

you entered invalid pin,you account is blocked

THANK YOU....😉😋😋😋😋

Sunday, July 12, 2020

Branching statement:

BRANCHING STATEMENT:

four type of Branching statement:

# 1. Simple if statement.

# 2. if.......else statement.

# 3. elseif ladder statement.

# 4. Nested if statement.

1.SIMPLE IF STATEMENT:

1) In this evaluate process the condition must true then only it will do next process.

2)If the condition is false there is nothing to happen automatically came out the process.

2.IF......ELSE STATEMENT:

1) If the condition is true it will do only one work.

2) If the condition is false it will do another work.

3.ELSE IF LADDER STATEMENT:

3) It will be Executed in step by step process and this process will

be hope where the condition is true.

4. NESTED IF STATEMENT:

In this condition having one if statement itself having another if statement on that.

Example:

SIMPLE IF STATEMENT:

a=5

if a==5: # Evaluate the condition is TRUE.

print("welcome")

OUTPUT:

welcome

2.IF......ELSE STATEMENT:

a=5

if a==4:

print("welcome")

else:

print("hello") # Evaluate the condition is FALSE.

OUTPUT:

hello

3.ELSE IF LADDER STATEMENT:

a=int(input("enter the value"))

if a==4:

print("four")

elif a==5:

print("five")

elif a==6:

print( "six")

else:

print("hello")

OUTPUT:

enter the value: 5

five

enter the value: 4

four

enter the value: 7 #we assing except this values automatically go to else part

hello

and print hello

4. NESTED IF STATEMENT:

a=int(input("enter the value"))

b=int(input("enter the value"))

if a==4:

if a>4:

print('yes")

else:

print("no")

else:

print("terminate")

OUTPUT:

Saturday, July 11, 2020

OPERATOR PRECEDENCE

OPERATOR PRECEDENCE:

() -> Parentheses.

+x, -X, ~X -> Unary Plus, Unary minus, Bitwise No.

** -> Exponentiation (raise to the power).

* / % // -> Multiply, divide, Modulo, and Floor

Division.

+ , - -> Addition and Subtraction.

>> << -> Right and Left bitwise .

&& -> Bitwise "AND"td.

^| -> Bitwise exclusive "OR" and regular "or".

Example:

# e=(a+b)* c/d

#try this using in above the operator

# e=a+(b*c)/d

precedence.

# e=((a+b)*c)/d

a,b,c,d=2,4,3,5

1. e=(a+b)* c/d e=(2+4)*3/5

print(e) e=(6)*3/5

e=18/5

Print(e)

OUTPUT: 3.6
3.6

2. e=a+(b*c)/d e=2+(4*3)/5

print(e) e=2+(12)/5

e=2+2.4

print(e)

4.4 OUTPUT:

4.4

3. e=((a+b)*c)/d

print(e)

# YOU TRY 😜😜

OUTPUT:

3.6

Monday, March 2, 2020

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)

Sunday, March 1, 2020

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:

SLICING:

word3="HELLO"

print(word3[1:3])

output:

EL #Before array value in 3.

LENGTH:

word3="hello, world"

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

output:

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

Sunday, January 5, 2020

pyramid pattern

PYRAMID PATTERN USING FOR LOOP IN PYTHON LANGUAGE

-5 JANUARY 2020

CONCEPT:

The below program prints the pyramid pattern using * by for loop.

INPUT:

Enter the no of rows:4

PROGRAM:

num=int(input("Enter the no rows:"))
for i in range (0,num):
for j in range(0, num-i-1):
print (end=" ")
for j in range(0,i+1):
print("*",end=" ")
print()

OUTPUT:

Friday, January 3, 2020

REGULAR EXPRESSION

REGULAR EXPRESSION using PYTHON
-january 4.1.2020

CONCEPT:
To get the year from the e-mail id using \d+.
SYMBOL:
\d - digit(match digit)
\w - specific alphanumeric
\s - space(count the no of space
\. - each single characters
+ - 1..............infinity
* - 0.............infinity
? - (+91)(Eg: 91 is optional number may be)

INPUT:
Given Email Id (2000lathaammu2020@gmail.com)
OUTPUT:
if your input email id is 2000lathaammu2020@gmail.com then your output is ['2000','2020']

PROGRAM:

for PYTHON..........

import re
s="2000lathaammu2020@gmail.com"
re.findall('\d+',s)

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