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Binary to Decimal Updated

Tue, 28 Jan 2025 14:21:03 +1100

In my other blog post ‘Binary to Decimal’, I realized what if I had put in a different number than 1 and 0. I tried putting a 2 and the code still worked. So I will be sharing an updated version, so that you can only put in either 1 or 0. Else there will be an error.

# make a new function
def bintodeci(num):
    reverse = len(num) -1
    exp = 0
    total = 0
    for index in range(reverse, -1, -1):
        # if each number is either 0 or 1 else it'll print out an error.
        if num[index] in '01':
            total += int(num[index]) * (2**exp)
            exp += 1
        else:
            print("Error: Invalid binary number")
            return None
            
    # return the value
    return total

# In case I want to import it
if __name__ == '__main__':
     print(f'The variable __name__ is {__name__}')
     answer = bintodeci("111")
     print(answer)

Binary to Decimal

Thu, 23 Jan 2025 20:33:23 +1100

I’m sharing a program that converts binary to decimal in python.

# make a new function
def bintodeci(num):
    reverse = len(num) -1
    exp = 0
    total = 0
    # range(start, stop, step)
    for digit in range(reverse, -1, -1):
        total += int(num[digit]) * (2**exp)
        exp += 1
    
    # return the value
    return total


answer = bintodeci("11")
print(answer)

sample output:

bai.

Create Restic Backup Program

Mon, 30 Dec 2024 16:51:56 +1100

I’m sharing a wrapper program written in python to backup my files in my device using restic.

import subprocess

restic_command = ['restic', 'backup']

backup = ["C:\\Users\\veronica\\ibisPaint", "C:\\Users\\veronica\\Pictures", "C:\\Users\\veronica\\Documents"]

print("List of directories to be backed up:\n" )

#list the files that will be backed up.
#enumerate = allows you to keep track of the number of iterations in a loop.
for number, dir in enumerate(backup, start=1):
    print(f"    {number}. {dir}")
#  Or: print("    " + str(number) + ".", letter )

# \n makes a new line
print("\nBackup process started...\n")

# combines the lists together.
backup_command = restic_command + backup

restic = subprocess.run(backup_command, shell=True)

The end. -w-

Atm Bill Dispenser

Fri, 09 Aug 2024 19:17:12 +1000

Today, I was given an assignment to write a program to implement an atm dispenser in the following notes: 100, 50, 20, 10, and 5. If the amount is not a multiply of 5, the atm will return a list of 0.

In the code are short explanations of why I used it.

# asks the customer to enter an amount of number.
atm = int(input("Enter an amount in a multiple of 5: "))

# This takes in a amount parameter which is the input  from the user and return an array of bills in the following orders: [$100, $50, $20, $10, $5]. 
def dispenser(amount):
    
    # if statement to check if number entered is divisible by 5. If not, return with 0, if yes, continue code.
    if atm % 5 != 0:
        return [0, 0, 0, 0, 0]
    
    result = []
    bill_types = [100, 50, 20, 10, 5]

# starts with the starting amount being divided by each number in bill_types.
    for each_note in bill_types:
        note_counts = amount // each_note
        result.append(note_counts)

        # get the remainder and overwrite the previous.
        amount = amount % each_note

    return result

# The code below is what will be given back as a sentence to the customer.
print(f"You entered ${atm}: {dispenser(atm)}")

Make a Frequency Dictionary From the Elements Of a List

Sun, 25 Feb 2024 18:00:14 +1100

Halo! Today I have to make a python program that meets these conditions:

Write a Python program that creates and print a dictionary that maps each element in a list to its corresponding frequency (how many times it occurs in the list).
The test should be case-sensitive. Therefore, “A” should not be considered the same element as “a”.

I think for today, I’m just going to make it short. Yea…

Finding elements not in list

Sun, 04 Feb 2024 21:14:07 +1100

Haloo people! How long has it been since I’ve done a blog post? Welp, I’ve finished my long break and now it’s time to get back to work. Today, I’ll be writing a python program that prints the elements of one list (a) that are not in the other list (b) as a list.

My conditions are:

If the lists have the same elements, it will print an empty list.
If the first list (a) is an empty list, it’ll print an empty list.

An example -

Assignment 5: Elements and Indices

Sat, 11 Nov 2023 19:08:38 +1100

Today I had to do another assignment which is to create a python program which prints the elements of a list followed by their corresponding indices. Each element and its index must be on the same line seperated by a space. And if the list is empty, print “Empty List”.

I’m going to make a list called num and put 1 to 4 inside.

num = [1, 2, 3, 4]

Then I’ll use the if statement to do:

Assignment 3: Doubling

Wed, 18 Oct 2023 18:59:17 +1100

Today, I was given another assignment. (Which I wasn’t expecting.) Today’s assignment was to write a python program which had to meet the conditions:

Write a Python proram that multiplies all the items in a list by the value of the variable factor.
The program must print the list as the output.
The program should allow multiplying the variable factor by a string in case the list contains strings.
You may assume that the value of factor will be a positive integer.

Assignment 1: Using Length and String

Sun, 15 Oct 2023 11:14:44 +1100

Today, I was given an assignment. My assignment wanted me to write a Python program that pints the length of a string.

This is what I had to print out:

The length of "" is 0.
The length of "H" is 1.
The length of "Hello" is 5.
The length of "Amazing" is 7.

To do this, I have a plan in my mind which is:

Step 1. Find out what I’m going to use.