Classwork 4

Python Basics

Question 1

Using Python operations only, calculate below: \[\frac{2^5}{7 \cdot (4 - 2^3)}\]

Answer

Question 2

For each expression below, what is the value of the expression? Explain thoroughly.

20 == '20'

x = 4.0
y = .5

x < y or 3*y < x

Answer

Question 3

fare = "$10.00"
tip = "2.00$"
tax = "$ 0.80"

Write a Python code that uses slicing and the print() function to print out the following message:

The total trip cost is: $12.80

Answer

Question 4

list_variable = [100, 144, 169, 1000, 8]

Write a Python code that uses print() and max() functions to print out the largest value in the list, list_variable, as follows:

The largest value in the list is: 1000

Answer

Question 5

vals = [3, 2, 1, 0]

• Use a while loop to print each value of the list [3, 2, 1, 0], one at a time.
• Use a for loop to print each value of the list [3, 2, 1, 0], one at a time.

Answer

Question 6

• Assign the value 7 to the variable guess_me, and the value 1 to the variable number.

• Write a while loop that compares number with guess_me.

  • Print ‘too low’ if number is less than guess me.
  • If number equals guess_me, print ‘found it!’ and then exit the loop.
  • If number is greater than guess_me, print ‘oops’ and then exit the loop.
  • Increment number at the end of the loop.

• Write a for loop that compares number with guess_me.

  • Print ‘too low’ if number is less than guess me.
  • If number equals guess_me, print ‘found it!’ and then exit the loop.
  • If number is greater than guess_me, print ‘oops’ and then exit the loop.
  • Increment number at the end of the loop.

Answer

Question 7

• You are given a variable value that contains a string.

value = "$320"

• Write a Python program to:
  1. Attempt to convert value to a floating-point number using float().
  2. If the conversion is successful, print: “You entered: ”.
  3. If the conversion fails (e.g., the value is not a valid number), print: “That’s not a valid number!”.
• Use a try-except block to handle the potential error.

Answer

Question 8

• Import the pandas library as pd.
• Install the itables library.
• From itables, import the functions init_notebook_mode and show.

Answer

Discussion

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