Build a Budget App - Build a Budget App

Python
1

Tell us what’s happening:

Hello. I’m building the create_spend_chart function. I’m can’t get following test passing:

"The height of each bar on the create_spend_chart chart should be rounded down to the nearest 10.
I’m already tried a lot. (for past like 2 days). my original if statement was if percentage >= fixed_number but because I couldn’t get the test passing I changed it to if math.floor(percentage/10)*10 >= fixed_number but still can’t get it pass. thanks for your help.

Your code so far

import math

class Category:
    def __init__(self, name):
        self.name = name
        self.ledger = []

    def deposit(self, amount, description=""):
        self.ledger.append({
            'amount': amount,
            'description': description
        })

    def withdraw(self, amount, description=""):
        if self.check_funds(amount):
            self.ledger.append({
                'amount': -amount,
                'description': description
            })
            return True
        else:
            return False

    def get_balance(self):
        balance = 0;
        for item in self.ledger:
            balance += item['amount']

        return balance

    def transfer(self, amount, destination):
        if self.check_funds(amount):
            self.withdraw(amount, f"Transfer to {destination.name}")
            destination.deposit(amount, f"Transfer from {self.name}")
            return True
        else:
            return False

    def check_funds(self, amount):
        if amount > self.get_balance():
            return False
        else:
            return True

    def __str__(self):
        string = ""
        max_length = 30
        name_length = len(self.name)
        star_count = (max_length - name_length) // 2
        
        string += '*' * star_count + self.name + '*' * star_count + '\n'

        for entry in self.ledger:
            fixed_desc = entry['description'][:23]
            fixed_amount = "%.2f" % entry['amount']
            remained_space = 30 - len(fixed_desc) - len(str(fixed_amount))
            string += fixed_desc + ' ' * remained_space + fixed_amount + '\n'

        string += f"Total: {self.get_balance()}"

        return string

    def get_spent_money(self):
        sum = 0
        if self.ledger != []:
            for item in self.ledger:
                if item['amount'] < 0:
                    sum -= item['amount']
        return sum

    def get_deposited_money(self):
        sum = 0
        if self.ledger != []:
            for item in self.ledger:
                if item['amount'] > 0:
                    sum += item['amount']
        return sum

    def get_spent_percentage(self):
        return (self.get_spent_money() * 100) // self.get_deposited_money()


def create_spend_chart(categories):
    output = ""
    output += "Percentage spent by category\n"
    percentages = [category.get_spent_percentage() for category in categories]

    for number in reversed(range(11)):
        fixed_number = number * 10
        if fixed_number == 100:
            line = "100|"
        elif fixed_number == 0:
            line = "  0|"
        else:
            line = f" {fixed_number}|"
            
        for percentage in percentages:
            if percentage >= fixed_number:
                line += " o "
            else:
                line += "   "
        expected_length = 5 + 3 * len(categories)
        output += line + ' ' * (expected_length - len(line)) + "\n"

    line = "    "
    for percentage in percentages:
        line += "---"
    output += line + "-\n"

    name_max_length = max([len(category.name) for category in categories])

    for character_number in range(name_max_length):
        line = "    "
        for category in categories:
            if len(category.name) >= (character_number + 1):
                line += ' ' + category.name[character_number] + ' '
            else:
                line += '   '
        output += line + ' \n'
        
    output = output.removesuffix('\n')
    return output

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Challenge Information:

Build a Budget App - Build a Budget App

2

please read again how to calculate the percentages, you are not following the instructions

1 Like
3

Thanks. for your **REALLY HELPFUL** answer. I was stuck on that project in past 2 days. (although the maximum time for doing the previous project or challenges or labs, etc was 30 minutes for me and I was really upset.)

Thanks again!

4

I think you calculate the percentages incorrectly. It asks to calculate “the percentage of the amount spent for each category to the total spent for all categories”

1 Like