#List – linear ordered mutable collection
# dictionary – ordered collections – key:value pair
dict1 = {}
print(type(dict1))
dict1 = {“name”:“Sachin”,“city”:“Mumbai”,“Runs”:12345,“name”:“Tendulkar”}
print(dict1)
print(dict1[‘name’])
dict2 = {(“Team IPL”,“Team Ranji”):“Mumbai Indians”}
dict1.update(dict2)
print(dict1)
for i in dict1.keys():
print(i, dict1[i])
print(“Iterating through values:”)
for i in dict1.values():
print(i)
print(“Iterating through items (key,value):”)
for i,j in dict1.items():
print(i,j)
for i in dict1.items():
print(list(i))
print(“Printing the values: “)
print(“Keys :”,dict1.keys())
print(“Values:”,dict1.values())
print(“Items:”,dict1.items())
dict1.pop(‘Runs’)
print(“After pop: “,dict1)
dict2 = dict1 #deep copy
dict3 = dict1.copy() # shallow copy
t_dict = {“Country”:“India”}
dict1.update(t_dict)
print(“Printing all 3 Dictionaries: “)
print(“Dict1: “,dict1)
print(“Dict2: “,dict2)
print(“Dict3: “,dict3)
#dict1[‘name’]=”Tendulkar”
t_dict = {“name”:“Tendulkar”}
dict1.update(t_dict)
for i in range(2):
print(“Dict1 before popitem: “,dict1)
dict1.popitem()
print(“Dict1 after popitem: “,dict1)
”’
Write a program to input Roll no. and marks of 3 students in 3 subjects
{101:[], 102:[]}
”’
dict_marks={}
for i in range(3):
t_dict = {}
roll=int(input(“Enter the Roll number:”))
t_list=[]
for j in range(3):
marks=int(input(“Enter the marks for Roll no.”+str(roll)+” in Subject “+str(j+1)+” :”))
t_list.append(marks)
t_dict = {roll:t_list}
dict_marks.update(t_dict)
print(“Final data:”,dict_marks)
”’
Assignment program:
from the below dictionary find the topper for each subject:
{100: [55, 66, 78], 102: [90, 87, 54], 105: [67, 76, 87]}
e.g. Highest in Subject 1: 102 with 90 marks
Highest in Subject 2: 102 with 87 marks
Highest in Subject 3: 105 with 87 marks
”’
#Example 2:
master_dict = {}
for k in range(2):
t_dict = {“Name”:0,‘Age’:0,‘Email’:0,“Address”:0}
for i in t_dict.keys():
j=input(“Enter the client’s “+i+” :”)
t_dict[i] = j
master_dict.update(t_dict)
print(“Master Dictionary information: \n“,master_dict)
##################################################
# SETS
set1 = {}
print(type(set1))
set1 = {“Apple”,“Banana”,“Mango”,“Grapes”,“Guava”}
print(type(set1))
set2 = {“Mango”,“Grapes”,“Guava”,“Apple”,“Banana”}
set1 = {1,2,3,4,5,6}
set2 = {1,3,5,7,9}
print(“Union:”)
print(set1 | set2)
print(set1.union(set2))
print(“Intersection:”)
print(set1 & set2)
print(set1.intersection(set2))
print(“Minus – difference”)
print(set1 – set2)
print(set2.difference(set1)) #set2 – set1
print(“Symmetric Difference”)
print(set1 ^ set2)
print(set1.symmetric_difference(set2))
print(“Set1 before pop:”,set1)
set1.pop()
print(“Set1 after pop:”,set1)
list1 = [1,2,3,4,1,2,3,1,2,1]
list1 =list(set(list1))
print(type(list1))
print(list1)
#################### FUNCTIONS ##############################
def myquestions():
”’this is a sample function to demonstrate how function works
it doesnt take any parameter nor does it return anything
-written on 22nd april”’
print(“whats your name?”)
print(“how are you?”)
print(“Where are you going?”)
def mycalc1(a,b,c):
print(“MY CALC 1”)
print(f”A,B and C values are {a},{b},{c}“)
total = a+b+c
print(total)
def mycalc2(a,b=0,c=9):
print(“MY CALC 2”)
print(f”A,B and C values are {a},{b},{c}“)
total = a+b+c
print(total)
def myfunc1(a,*b,**c):
print(“A = “,a)
print(“B = “,b)
print(“C = “,c)
myquestions()
print(myquestions.__doc__)
print(“Doc for print”)
print(input.__doc__)
#doc – first line of code inside the function, must be multiline comment
print(“\n\n\n“)
mycalc1(10,50,90) #required positional arguments
mycalc2(3,7,19) #calling default arguments
mycalc1(c=1,a=7,b=3) #use keywords to avoid positional
print(“Calling variable length arguments:”)
myfunc1(10,1,2,3,4,5,6,7,8,9,0,4,5,66,44,333,33, name=“Sachin”,age=43,runs=19890)
def myfun1(a,b,c):
#
global x
print(“X = “,x)
x = 5
print(“X = “, x)
x=50
myfun1(5,10,15)
print(“in Main x = “,x)
###
def isPrime(n):
check= True
for i in range(2,n//2+1):
if n%i==0:
check=False
break
return check
check = isPrime(51)
if check:
print(“51 number is prime”)
else:
print(“51 number is not prime”)
#generate list of prime number between 1000 and 2000
for i in range(1000,2001):
out =isPrime(i)
if out:
print(i)
var1 = 5 #let’s take a variable called var1 and make it equal to 5
# number without decimal point – integer
#var1 is a variable of type integer
print(“var1”)
print(var1)
print(type(var1))
var1 = 5.0 #float – -inf to +inf with decimal point
print(type(var1))
var1 = 5j #complex (imaginary) – i
# square root of -25 = sq rt(25* -1) = 5j
print(type(var1))
print(5j * 5j)
# string – text (str)
var1 = “hello”
print(type(var1))
#5th basic data types – bool (boolean – 2 values: True / False)
var1 = True
print(type(var1))
#Functions for explicit conversion – convert data from given type to this:
# int(), float(), complex(), str(), bool()
var1 = int(“5”)
print(type(var1))
quantity =49
cost_pc = 51.89
total_cost = quantity * cost_pc
print(“Total quantity bought is”,quantity,”each one at a cost of”,cost_pc,”so the total cost is”,total_cost)
print(f”Total quantity bought is {quantity} each one at a cost of {cost_pc:.1f} so the total cost is {total_cost}”)
pl=”Rohit”
cn=”India”
pos=”captain”
print(f”Player {pl:<12} plays for {cn:^12} and is {pos:>20} of the team!”)
pl=”Mabwange”
cn=”Zimbabwe”
pos=”Wicket-keeper”
print(f”Player {pl:<12} plays for {cn:^12} and is {pos:>20} of the team!”)
num1 = int(input(“Enter first number to be added: “)) #default input will read as str
print(type(num1))
num2 = int(input(“Enter second number to be added: “))
print(type(num2))
print(num1+num2)