Python 3 formatting issue with '$' - python-3.x

Question

I just started learning Python this week and I'm having an issue with some line formatting. I am trying to insert a '$' along with the calculated values, I've tried to insert the '$' with a new {} set, as well as here {{$:>{}.2f}} (based on Google search suggestions), however I keep getting errors.
I'm using Google Collab to run the code.
def budget_calc(money, rent, food, phone, gas, extra_income):
width = 35
price_width = 10
item_width = width - price_width
income = sum(weekly_income) + extra_income
expenses = sum(credit_cards) + rent + phone + food + gas + utilities
after_tax =income*0.84
#after_tax_instr = str(after_tax)
gross = 'Money before tax:' #+ str(income)
post_tax= 'Post tax income:' #+after_tax_instr
tax_payment ='Taxes due:' #+str(income*.16)
savings = after_tax - expenses
total = 'Money left over:' #+'$'+str(savings)
expense_total = 'Total expenses' #+str([expenses])
line = "{{:{}}} {{:>{}.2f}}".format(item_width, price_width)
print(line.format(gross, income))
print(line.format(tax_payment, (income*0.16)))
print(line.format(post_tax, after_tax))
print(line.format(expense_total, expenses))
print(line.format(total, savings))
The output I get is:
Money before tax: 3300.00
Taxes due: 528.00
Post tax income: 2772.00
Total expenses 2190.00
Money left over: 582.00
Days until my Mac: 44.36
I would appreciate any pointers in the right direction.

Answer 1

I think the error it throws will be keyerror and it because of the messy string format
def budget_calc(money, rent, food, phone, gas, extra_income):
width = 35
price_width = 10
item_width = width - price_width
income = sum(weekly_income) + extra_income
expenses = sum(credit_cards) + rent + phone + food + gas + utilities
after_tax =income*0.84
#after_tax_instr = str(after_tax)
gross = 'Money before tax:' #+ str(income)
post_tax= 'Post tax income:' #+after_tax_instr
tax_payment ='Taxes due:' #+str(income*.16)
savings = after_tax - expenses
total = 'Money left over:' #+'$'+str(savings)
expense_total = 'Total expenses' #+str([expenses])
# You can specify the width integer instead of formating
line = "{0:<25} ${1:.2f}"
print(line.format(gross, income))
print(line.format(tax_payment, (income*0.16)))
print(line.format(post_tax, after_tax))
print(line.format(expense_total, expenses))
print(line.format(total, savings))
Note : since weekly_income and credit_cards are not provided i just
removed it from script in order to check the output
When `budget_calc(33000,500,10,100,152,510)` this is called the output
Output :
Money before tax: $33510.00
Taxes due: $5361.60
Post tax income: $28148.40
Total expenses $762.00
Money left over: $27386.40

Answer 2

Python 3.6+ String interpolation is recommended way of string formatting because of its high readabililty.
The best way would be:
print(f'Money before tax: {income}')
print(f'Taxes due:{income*0.16}')
print(f'Post tax income: {after_tax}')
print(f'Total expenses: {expenses}')
print(f'Money left over :{savings}')
But if you want to use $ String Formatting only , the you should try the answer by DaVinci