String Formatting Dollar Sign In Python
Question:
So I’m trying to get the dollar sign to appear directly to the left of the digits under the column ‘Cost’. I’m having trouble figuring this out and any help is appreciated.
# Question 5
print("nQuestion 5.")
# Get amount of each type of ticket to be purchased
adultTickets = input("nHow many adult tickets you want to order: ")
adultCost = int(adultTickets) * 50.5
childTickets = input("How many children (>=10 years old) tickets: ")
childCost = int(childTickets) * 10.5
youngChildTickets = input("How many children (<10 years old) tickets: ")
# Display ticket info
print ("n{0:<17} {1:>17} {2:>12}".format("Type", "Number of tickets",
"Cost"))
print ("{0:<17} {1:>17}${2:>12.2f}".format("Adult", adultTickets, adultCost))
print ("{0:<17} {1:>17}${2:>12.2f}".format("Children (>=10)", childTickets,
childCost))
print ("{0:<17} {1:>17} {2:>12}".format("Children (<10)", youngChildTickets,
"free"))
#Calculate total cost and total amount of tickets
totalTickets = (int(adultTickets) + int(childTickets) +
int(youngChildTickets))
totalCost = adultCost + childCost
print ("{0:<17} {1:>17}${2:>12.2f}".format("Total", totalTickets, totalCost))
I also want the cost column to be formatted right, which for some reason it isn’t when I run the program.
(My output):
Edit: I also can’t format the ‘$’ onto the cost, as I have to keep the 2 decimal places in the formatting
Answers:
If I understand correctly, you want to format a floating point number into a string, and have a dollar sign appear in the output in between the number and the padding that you use to space it out in the string. For example, you want to be able to create these two strings with the same formatting code (just different values):
foo: $1.23
foo: $12.34
Unfortunately, you can’t do this with just one string formatting operation. When you apply padding to a number, the padding characters will appear in between the number and any prefixing text, like the dollar signs in your current code. You probably need to format the number in two steps. First make the numbers into strings prefixed with the dollar signs, then format again to insert the dollar strings into the final string with the appropriate padding.
Here’s how I’d produce the example strings above:
a = 1.23
b = 12.34
a_dollars = "${:.2f}".format(a) # make strings with leading dollar sign
b_dollars = "${:.2f}".format(b)
a_padded = "foo:{:>8}".format(a_dollars) # insert them into strings with padding
b_padded = "foo:{:>8}".format(b_dollars)
I had the same issue, and I was able to solve it with a string like this:
print("%5d" % month,"%3s"%’$’,"%12.2f" % balance,"%4s"%’$’,"%11.2f" % interest,"%4s"%’$’,"%13.2f" % principal)
It printed this in a nice even table.
Month | Current Balance | Interest Owned | Principal Owned
1 $ 9000.00 $ 90.00 $ 360.00
This indented the $ to the start of each table column, while also leaving enough space for very large figures. It’s not ideal though since it would be nice to nest it right next to the dollar number.
How I did this?
bill = input("What is the total bill? ")
bill_amount = int(bill)
amount_per_person = (bill_amount)/5
print("$"+"%.2f" % amount_per_person)
output
What is the total bill? 100
$22.40
So I’m trying to get the dollar sign to appear directly to the left of the digits under the column ‘Cost’. I’m having trouble figuring this out and any help is appreciated.
# Question 5
print("nQuestion 5.")
# Get amount of each type of ticket to be purchased
adultTickets = input("nHow many adult tickets you want to order: ")
adultCost = int(adultTickets) * 50.5
childTickets = input("How many children (>=10 years old) tickets: ")
childCost = int(childTickets) * 10.5
youngChildTickets = input("How many children (<10 years old) tickets: ")
# Display ticket info
print ("n{0:<17} {1:>17} {2:>12}".format("Type", "Number of tickets",
"Cost"))
print ("{0:<17} {1:>17}${2:>12.2f}".format("Adult", adultTickets, adultCost))
print ("{0:<17} {1:>17}${2:>12.2f}".format("Children (>=10)", childTickets,
childCost))
print ("{0:<17} {1:>17} {2:>12}".format("Children (<10)", youngChildTickets,
"free"))
#Calculate total cost and total amount of tickets
totalTickets = (int(adultTickets) + int(childTickets) +
int(youngChildTickets))
totalCost = adultCost + childCost
print ("{0:<17} {1:>17}${2:>12.2f}".format("Total", totalTickets, totalCost))
I also want the cost column to be formatted right, which for some reason it isn’t when I run the program.
(My output):
Edit: I also can’t format the ‘$’ onto the cost, as I have to keep the 2 decimal places in the formatting
If I understand correctly, you want to format a floating point number into a string, and have a dollar sign appear in the output in between the number and the padding that you use to space it out in the string. For example, you want to be able to create these two strings with the same formatting code (just different values):
foo: $1.23
foo: $12.34
Unfortunately, you can’t do this with just one string formatting operation. When you apply padding to a number, the padding characters will appear in between the number and any prefixing text, like the dollar signs in your current code. You probably need to format the number in two steps. First make the numbers into strings prefixed with the dollar signs, then format again to insert the dollar strings into the final string with the appropriate padding.
Here’s how I’d produce the example strings above:
a = 1.23
b = 12.34
a_dollars = "${:.2f}".format(a) # make strings with leading dollar sign
b_dollars = "${:.2f}".format(b)
a_padded = "foo:{:>8}".format(a_dollars) # insert them into strings with padding
b_padded = "foo:{:>8}".format(b_dollars)
I had the same issue, and I was able to solve it with a string like this:
print("%5d" % month,"%3s"%’$’,"%12.2f" % balance,"%4s"%’$’,"%11.2f" % interest,"%4s"%’$’,"%13.2f" % principal)
It printed this in a nice even table.
Month | Current Balance | Interest Owned | Principal Owned
1 $ 9000.00 $ 90.00 $ 360.00
This indented the $ to the start of each table column, while also leaving enough space for very large figures. It’s not ideal though since it would be nice to nest it right next to the dollar number.
How I did this?
bill = input("What is the total bill? ")
bill_amount = int(bill)
amount_per_person = (bill_amount)/5
print("$"+"%.2f" % amount_per_person)
output
What is the total bill? 100
$22.40