Tell us what’s happening:
I have problems with the create_spend_chart function.
I truly don’t know what I’m missging, I don’t know if it is an spacing problem or if it is a problem with how I calculated the percentages.
I would gladly appreciate some help.
Your code so far
class Category:
def __init__(self, category_name):
self.category_name = category_name
self.ledger = []
#Method for printing the category
def __str__(self):
category_str = ''
#Making the title
asterix = ''.join(['*' for i in range((30-len(self.category_name))//2)])
title = asterix + self.category_name + asterix
if (30-len(self.category_name))%2 != 0:
title += '*'
category_str += title
#Adding the transactions
for transaction in self.ledger:
#Getting the description for each transaction (only the first 23 characters)
description = transaction['description'][0:23]
#Getting the amount of each transaction and adding the decimals if needed
amount = str(transaction['amount'])
if type(transaction['amount']) is int:
amount +='.00'
#Spaces to align the amount to the right
spaces = ''.join([' ' for i in range(30-len(amount)-len(description))])
transaction_str = '\n' + description + spaces + amount
category_str += transaction_str
#Adding the total
total = '\nTotal: ' + str(self.get_balance())
category_str += total
return category_str
def deposit(self, amount, description = ''):
deposit = {'amount': amount, 'description': description}
return self.ledger.append(deposit)
def get_balance(self):
balance = 0
for transaction in self.ledger:
balance += transaction['amount']
return balance
def check_funds(self, amount):
return amount <= self.get_balance()
def withdraw(self, amount, description = ''):
if self.check_funds(amount):
withdrawal = {'amount': -amount, 'description': description}
self.ledger.append(withdrawal)
return True
return False
def transfer(self, amount, other_category):
if self.check_funds(amount) == True:
self.withdraw(amount, f'Transfer to {other_category.category_name}')
other_category.deposit(amount, f'Transfer from {self.category_name}')
return True
return False
#Creating a method that will help the function to create the bar char of withdrawals
def total_of_withdrawals(self):
total_withdrawals = 0
for transaction in self.ledger:
if transaction['amount'] < 0:
total_withdrawals += transaction['amount']
return total_withdrawals*(-1)
#Creating a function to calculate and round the percentage of withdrawals of each category
def calculate_category_percentage(categories):
#Getting the total of withdrawals and the name of the categories
overall_total = 0
category_names = []
category_totals = []
for category in categories:
total_by_category = category.total_of_withdrawals()
category_totals.append(total_by_category)
overall_total += total_by_category
category_name = category.category_name
category_names.append(category_name)
#Calculating the percentages and rounding them
category_percentages = [(i/overall_total)*100 for i in category_totals]
category_percentages_rounded = [round(i/10)*10 for i in category_percentages]
#Creating a dictionary to store the categories and their percentages
dictionary = {'categories' : category_names, 'percentages': category_percentages_rounded }
return dictionary
def create_spend_chart(categories):
#Get the names and percentages of the categories
catgories_list = calculate_category_percentage(categories)['categories']
percentages_list = calculate_category_percentage(categories)['percentages']
#Making the title
bar_chart = 'Percentage spent by category'
#Making each row of the chart
for number in range(100,-1,-10):
bars = ' '.join(['o' if p >= number else ' ' for p in percentages_list])
if number == 100:
row = f'{number}| {bars} '
else:
row = f'{number:3}| {bars} '
bar_chart += '\n' + row
#Making the lines that go below
lines = ''.join(['-' for i in range(len(row)-4)])
bar_chart += '\n ' + lines
#Adding the titles of each category vertically
max_length = max(len(name) for name in catgories_list)
for i in range(max_length):
vertical_names = ' '.join([category[i] if i < len(category) else ' ' for category in catgories_list])
bar_chart += '\n ' + vertical_names + ' '
print(bar_chart)
#For testing my code...
food = Category('Food')
food.deposit(1000, 'deposit')
food.withdraw(180.15, 'groceries')
food.withdraw(150.89, 'restaurant and more food for dessert')
clothing = Category('Clothing')
food.transfer(50, clothing)
clothing.deposit(1200,'deposit')
clothing.withdraw(400.56, 'blouse')
clothing.withdraw(599.99, 'socks')
clothing.withdraw(800, 'jacket')
auto = Category('Auto')
auto.deposit(7000,'initial deposit')
auto. withdraw(399.47,'gas')
auto. withdraw(2000, 'wheels')
create_spend_chart([food, clothing, auto])
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Challenge Information:
Build a Budget App Project - Build a Budget App Project
