Python Formatting

Question

Why does the Following code work:

print(("{x},{y}".format(x = int(input()),y = int(input()))))

but not the one below:

x = int(input())
y = int(input())
print(("{x},{y}".format(x,y)))

I understand that one can do this:

x = int(input())
y = int(input())
print(("{0},{1}".format(x,y)))

But is there another way?

Answer 1

You could do

x = int(input())
y = int(input())
print(("{x},{y}".format(x=x,y=y)))

The var name {x} refers to the local name in format()

Answer 2

here some versions to create the discussed output:

(1) the mentioned version slightly reworked. it creates an extra space, since a comma is used to separate the arguments
(2) same as (1), but using concatenation with '+'
(3) using f- string that makes it much shorter and has a better readability

hoursCount = 8
minutesCount = 8
secondsCount = 8

print("{:02d}".format(hoursCount),":","{:02d}".format(minutesCount),":","{:02d}".format(secondsCount)) # (1)
08 : 08 : 08

print("{:02d}".format(hoursCount)+":"+"{:02d}".format(minutesCount)+":"+"{:02d}".format(secondsCount)) # (2)
08:08:08

print(f"{hoursCount:02d}:{minutesCount:02d}:{secondsCount:02d}") # (3)
08:08:08

Answer 3

You could use f-strings:

x = 1234
print(f"x is {x}")

Answer 4

Format is old-school!
Use f string which is easy to read and understand
x = 5
y = 3
print(f'{x},{y}')

Answer 5

The syntax which helped me was print("{:02d} ". format(hoursCount),":"," {:02d} ". format(minutesCount),":"," {02d} ". format(secondsCount))

Answer 6

Ivan
https://stackoverflow.com/questions/134934/display-number-with-leading-zeros

Answer 7

here you are,Ivan

https://code.sololearn.com/c53yJghejOdn/?ref=app

Answer 8

Don't know, i get a KeyError. Must have something to do with the classes and data types in Python. Specifically the dictionary with that KeyError.

just use f strings

Answer 9

Thanks, these are useful!

Answer 10

How do I format my output using f string if I want to display hh:mm:ss with two digits regardless whether the value is a one digit number, likesay 8:8:8 should be 08:08:08?