Not passing chart test - Scientific Computing with Python Projects - Budget App

Python
1

Tell us what’s happening:

My code is passing every test for the budget app project, except for the very last one that is about returning the chart, but when I look at them I have no clue what the problem is, and I’ve tried editing it around many times. Any assistance is appreciated!

Your code so far

class Category:
    categories = []
    def __init__(self, category):
        self.category = category
        self.ledger = []
        self.total_spent = 0
        Category.categories.append(self)

    def __str__(self):
        items = []
        title_line = self.category.center(30, '*')
        for item in self.ledger:
          description = item['description'][:23]
          amount = "{:.2f}".format(item['amount'])
          items.append(f"{description:23}{amount:>7}")
        ledger_str = ('\n').join(items)
        return f"{title_line}\n{ledger_str}\nTotal: {self.get_balance():.2f}"

    def deposit(self, amount, description=''):
        self.ledger.append({"amount": amount, "description":description})
    
    def withdraw(self, amount, description=''):
        if self.check_funds(amount) == True:
            self.ledger.append({"amount": amount * -1, "description": description})
            self.total_spent += amount  
            return True
        else:
            return False

    def get_balance(self):
        balance = 0
        for entry in self.ledger:
          balance += entry['amount']
        return balance
    
    def transfer(self, amount, category):
        if self.check_funds(amount):
          self.withdraw(amount, f"Transfer to {category.category}")
          category.deposit(amount, f"Transfer from {self.category}")
          return True
        else:
          return False
    def check_funds(self, amount):
        if amount > self.get_balance():
            return False
        else:
            return True
    

def create_spend_chart(categories):
    chart_title = 'Percentage spent by category'
    spend_categories = []
    result = ''
    chart_y = ''
    chart_x = ''
    for category in Category.categories:
      spend_categories.append(category.category)

    # calculate percentages
    total = sum(category.total_spent for category in categories)
    category_percentages = [(category.total_spent / total) * 100 for category in categories]

    # y-axis
    for i in range(100, -10, -10):
      chart_y += f'{i:>3}|'
      for percentage in category_percentages:
          if percentage >= i:
              chart_y += ' o '
          else:
              chart_y += '    '
      chart_y += '\n'

    # Horizontal line
    chart_y += "    " + "-" * (len(Category.categories) * 3 + 1) + "\n"

    category_spacing = 2
    cat_space = 5
    end_space = 6
    # vertical categories
    for i in range(len(max(spend_categories, key=len))):
      for j, category in enumerate(spend_categories):
          if i < len(category):
            if j == 0:
                result += ' ' * cat_space
            result += category[i]
          else:
            result += ' ' * end_space
          if j < len(spend_categories) - 1:
            result += ' ' * category_spacing
      result += '\n'

    chart_y += result
    # return chart_y
    chart_title += '\n' + chart_y
    return chart_title

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Challenge Information:

Scientific Computing with Python Projects - Budget App

2

Use F12 to look at the browser console output in the dev tools, it will show a more verbose error.

Educated guess, your chart ends and/or begins with a \n that isn’t expected.

3

Been messing around with both, but no luck so far :confused: Ty anyways

4

Did you see the error in the console? Can you paste it, or a screenshot, here?

5

The error is this:

AssertionError: 
'Perc[35 chars]       \n 90|            \n 80|            \n [350 chars]  \n' 
!= 
'Perc[35 chars]     \n 90|          \n 80|          \n 70|   [339 chars] t  '

Does this help? Your output is first, the expected output is second. You can see there is a spacing problem, and your output ends with a \n

6

okay, I’ll attempt to address that, thanks for finding that

1 Like
7

Do you see where to find it now? Will come in handy all the time

8

Yes I see where to find that error now in the console, handy indeed! However I am still struggling to figure out how to fix this error, the whitespace stuff is really frustrating…

9

It looks like you are adding two extra spaces at the end of each line.

10

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