"""

for, while

You can loop through any iterables

list

dictionary

string

* usually membership operator keyword "in" will be used here along with for keyword

example_list = [1,2,3,4]

example_dict = {0:1,1:2,2:3}

example_string = "Python"

for

syntax :

for char in example_string:

print (char)

for list_element in example_list:

print (list_element)

for dict_key in example_dict:

print (dict_key)

for number in range(10):

print (number)

while

syntax :

number = 10

while (number<10)

print (number)

number += 1

"""

example_string = "Python"

# print (example_string)

temp_string = ""

for i in example_string[::-1]:

temp_string +=i

print (temp_string)

# for i in example_string[::-1]:

# print (i)

# for number in range(10,100,10):

# print (number)

# for character_index in range(2,len(example_string)-2,2):

# print (example_string[character_index])

# a = {"a":"1","b":"2"}

a = [1,2,3,4,5]

for i in a:

pass

# print (i)

# range(start_index,stop_index+1,step)

for index_number in range(0,len(a)):

# print (a[index_number])

pass

dict_variable = {"a":1,"b":2,"c":3,"d":4}

# for key_name in dict_variable:

# print (dict_variable.keys())

# print (dict_variable[key_name])

# print (dict_variable.get(key_name))

for key_name,value_name in dict_variable.items():

pass

# print (key_name,"-----",value_name)

for dict_item in dict_variable.items():

# print (dict_item)

key_name,value_name = dict_item

# or

# key_name = dict_item[0]

# value_name = dict_item[1]

# print (key_name,"-------",value_name)

# for _ in range(5):

# print (_)

# print (type(_))

# print(_)

a = [1,2,3,4,5,5,6]

"""

while(<Tue>): expx = a in "Oython" | a == b | a is b

print ("welcome")

a = True

while(a):

print ("welcom")

a = False

"""

i = 0

a = "Python"

# 8<10 and None == "Python"

while(i<10 and a == "Python"):

print ("iteration - ",i,type(i<10),i<10,a)

# i = 7

if (i > 5):

a = None

print ("after condition check",i,type(i<10),i<10,a)

i+=1 # 7

print ("after i increment",i,type(i<10),i<10,a,"\n")

print ("OUT OF LOOP")

print (i,type(i<10),i<10,a)

for i in range(10):

if (i == 5):

continue

print (i)

# ------------ SRIHARSHA SUGGESTION CODE BLOCK -----------

dict1 = {'Ten': 10, 'Twenty': 20, 'Thirty': 30}

dict2 = {'Thirty': 50, 'Fourty': 40, 'Fifty': 50}

dict3 = {**dict2,**dict1}

print ("sriharsha",dict3)

dict3 = {}

dict3.update(dict1)

dict3.update(dict2)

print (dict3)

print (id(dict1))

print (id({**dict1}))

# ----------------------

# give me even numbers using continue while looping through 0 to 100

even_numbers = []

even_numbers_dict = {}

index_variable = 1

for i in range(1,100):

if (i%2 != 0):

continue

print (i,index_variable)

even_numbers_dict.update({index_variable:i})

index_variable +=1

# even_numbers.append(i)

# print (even_numbers)

print (even_numbers_dict)

# {1:2,2:4,3:6 ........ 49:98}

# [{1:2,2:4,3:6 ........ 49:98},{1:102,2:104,3:106 ........ 49:198},{1:202,2:204,3:206 ........ 49:198}]