Question

1. Create a Python list (use first three letters of your name followed by the letter L as the name of the list.) with the following data: 10, 20.0, 50.00, 7000, 7500, 7700, 7800, 8000, 9000, ‘python’.

1. Display the entire list with an appropriate message.
2. Display the 4^th element in the list with an appropriate message.
3. Display the first 3 values of the list only.
4. Display all the values starting from the sixth element to the end of the list.
5. Change the value of the last element to ‘unix’ and display its changed value.

2. Create a Python tuple (use first three letters of your name followed by the letter T as the name of the tuple.) with the following data: 115, ‘C#’, 345.

1. Display the entire tuple with an appropriate message.
2. Display the second element of the tuple with an appropriate message.
3. Try to change the value of the first element to any other value and screenshot the output. Explain what has happened.

3. Create a Python set (use first three letters of your name followed by the letter S as the name of the set.) with the following data: 1, 2, 3, 3, 4, 4, 5.

1. Display the entire set.
2. Try to display the second element of the set and screenshot the output. Explain what has happened.

4. Create a Python dictionary (use first three letters of your name followed by the letter D as the name of the dictionary.)   with the following key/value pairs: 1: ‘syed’ , ‘key’:500.

1. Print the entire dictionary.
2. Verify the data type of the collection you just created.
3. Print the value of the key 1.
4. Print the value of the key ‘key’.
5. Try to print the value of the key “john’ and screenshot the output. Explain what has happened.

5. Develop an application in Python that does the following:

• When you run the program it displays an appropriate welcome message.
• It then prompts for any value of temperature from the user.
• Then it asks the user if the temperature entered is in Celsius or in Fahrenheit scale (ask the user to enter c for Celsius and f for Fahrenheit.)
• If the temperature entered is in Celsius, the application converts it to Fahrenheit and displays the Fahrenheit value (properly formatted) with an appropriate message. If the temperature entered is in Fahrenheit, the application converts it to Celsius and displays the Celsius value (properly formatted) with an appropriate message.
• This application then asks if the user wants to continue to convert temperature. If the user enters y at the prompt, it repeats the process. If the user enters n at the prompt, it exits with an appropriate bye message.

[Do not use any built-in functions for the conversions. You are expected to create your own functions for the conversions and call them as needed.]

Answer 1

a)

Code:

#1.answer
saiL=[10, 20.0, 50.00, 7000, 7500, 7700, 7800, 8000, 9000, 'python']
print("a. The given list is :\n",saiL)
print("b. The fourth element in the list is :\n",saiL[3])
print("c. The firs three values in the list is :\n",saiL[0:3])
print("d. Elements starting from the 6th element is :\n",saiL[5:])
saiL[len(saiL)-1]="unix"
print("e. The last element changed to :",saiL[len(saiL)-1])
print("The updated list is :\n",saiL)

  
  
b)

Code:

#2.answer...
saiT=(115, 'C#', 345)
print("\n\na. The given tuple is :\n",saiT)
print("b. The 2nd element of the tuple is :\n",saiT[1])
print("c. Try to change first value")
saiT[0]=345 #here we get error because tuples are immutable means that can't be changed

c)

Code:

#3.answer....
S=[1, 2, 3, 3, 4, 4, 5]
saiS=set(S)
print("The entire set is :\n",saiS)
print(saiS[2]) #here we get error because it doesn't support indexing
for i in saiS:
break
print("acessing element in different method")
print(i)

d)

Code:

#4.answer..
saiD={1: 'syed' , 'key':500}
print("a. Entire dictionary :\n",saiD)
print("b. verifying datatype :\n",type(saiD))
print("c. Value of key 1 is :\n",saiD[1])
print("c. Value of key \'key\' is :\n",saiD['key'])
print("d. Trying to print the value of john :\n",saiD['john'])
#here we get the error named keyError because key john is not in dictionary

e)

Code:

#5.answer....
print("Welcome to Temperature conversion program")
while(True):
temp=eval(input("Enter temperature"))
c_f=input("the temperature entered is in celcius(c) /Fahrenheit (c)")
if(c_f=='c'):
print("Temperature in Fahrenheit is:",(temp*(9/5))+32)
elif(c_f=='f'):
print("Temperature in celcius is:",((temp-32)*(5/9)))
else:
print("Invalid option")
op=input("contiue (y/n)?")
if(op=='n' or op=='N'):
break