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1. Create a list named fishes that contains “catfish”, “perch”, “cod” and “carp”
2. Show the last element of the list using two different ways.
3. Change the second element of the list by another fish name.
4. Print the modified list.

Right Answer:

# Step 1 fishes = ["catfish", "perch", "cod", "carp"] # Step 2 print(fishes[-1]) # Output: carp (using negative index) print(fishes[3]) # Output: carp (using positive index) # Step 3 fishes[1] = "salmon" # Changing the second element to "salmon" # Step 4 print(fishes) # Output: ['catfish', 'salmon', 'cod', 'carp']

1. Create a list named mylist that contains ‘abc’, False, 1 and 3.14159.
2. Change False and 1 to True and 0 in one operation.
3. Extract the element ‘abc’ from the list and assign it to a variable in one operation.
4. Print that variable.
5. Assign the 3 list elements into 3 variables in one operation.
6. Print these variables.

Right Answer:

# Step 1 mylist = ['abc', False, 1, 3.14159] # Step 2 mylist[1:3] = [True, 0] # Change False and 1 to True and 0 # Step 3 abc_var = mylist.pop(0) # Extract 'abc' and assign it to abc_var print(abc_var) # Output: 'abc' # Step 4 var1, var2, var3 = mylist # Assign the remaining list elements to variables # Step 5 print(var1, var2, var3) # Output: True, 0, 3.14159

1. Given a list named days that contains "Monday", "Tuesday", "Wendesday",
"Thursday" and "Friday".
2. Correct the typo in "Wendesday" to "Wednesday" using the days list.
3. Print the list to ensure the change has been made.

Right Answer:

# Step 1 days = ["Monday", "Tuesday", "Wendesday", "Thursday", "Friday"] # Step 2 days[2] = "Wednesday" # Correcting the typo # Step 3 print(days) # Output: ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']

1. Create a tuple that contains 0, 0, 1, 0, 1, and 1
2. Count the number of 0 using a method.
3. Find the index of the first 1 using a method.
4. Delete the tuple.
Tips: To delete a tuple, you could use del followed by the tuple name.

Right Answer:

# Step 1 binary_tuple = (0, 0, 1, 0, 1, 1) # Step 2 count_zeros = binary_tuple.count(0) print(count_zeros) # Output: 3 # Step 3 index_of_first_one = binary_tuple.index(1) print(index_of_first_one) # Output: 2 # Step 4 del binary_tuple # Deleting the tuple

1. Create a list named values that contains 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10.
2. Slice the list such that you get every second element starting from the end, but not
including the last element.
3. Print the result (it should be 9, 7, 5, 3, 1).

Right Answer:

# Step 1 values = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] # Step 2 sliced_values = values[-2::-2] # Slice to get every second element from the end, excluding the last element # Step 3 print(sliced_values) # Output: [9, 7, 5, 3, 1]

1. Given a list named colors that contains "red", "blue", "green", "yellow" and "pink"
2. Print the second and fourth items from the list.
3. Given the tuple named grades that contains "A", "B", "C", "D" and "F"
4. Print the first and last items from the tuple.

Right Answer:

# Step 1 colors = ["red", "blue", "green", "yellow", "pink"] # Step 2 print(colors[1]) # Output: blue print(colors[3]) # Output: yellow # Step 3 grades = ("A", "B", "C", "D", "F") # Step 4 print(grades[0]) # Output: A print(grades[-1]) # Output: F

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