Print data in console in python

Question

I am looking to print some data on screen in python, I use the formatting of strings so that they are presented in an orderly and rounded way, this data is printed based on a conditional.

I have created two variables: If a > b, rounded numbers should be printed like this:

01         -807.8
02        -6337.8
03        -6045.9
04       -15531.6
05       -26803.0
06       -40534.2
07        20364.4
08        12678.4

But if a < b, a text like this should be printed:

01       Does not apply
02       Does not apply
03       Does not apply
04       Does not apply
05       Does not apply
06       Does not apply
07       Does not apply
08       Does not apply
09       Does not apply
10       Does not apply

The problem is that: When executing the command if a> b the values are printed, but if a < b, I get an error: TypeError: type str doesn't define __round_ method.

Is there a way to correct that problem?

My code is as follows:

datos = [[1,1154,5412],[2,4527,5698],[3,2879,-5687],[4,5547,-5698],[5,7658,6589],
     [6,9651,-4565],[7,-4156,-6548],[8,-2264,6568],[9,-1657,6597],[10,-1643,5481]]

for i in range(len(datos)):

    a = 7
    b = 8

    if a < b:                
        Respuesta = 'Does not apply'                  
    elif a > b:            
        Respuesta = (0.7*datos[i][0]*datos[i][1])/(b-a)    

    print(f"{i+1:02} {round(Respuesta, 2):>20}")

Round the value in the elif suite ... Respuesta = {round(Respuesta, 2) then it won't be in the print function. — wwii
– wwii, Commented Apr 14, 2020 at 18:19

Błotosmętek · Accepted Answer · 2020-04-14 18:19:08Z

1

Several ways, but this is probably the simplest:

    if a < b:                
        Respuesta = 'Does not apply'                  
    elif a > b:            
        Respuesta = round((0.7*datos[i][0]*datos[i][1])/(b-a), 2)

    print(f"{i+1:02} {Respuesta:>20}")

answered Apr 14, 2020 at 18:19

Błotosmętek

13k23 silver badges30 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

kederrac · Accepted Answer · 2020-04-14 18:34:06Z

0

if a < b your variable Respuesta will be this string 'Does not apply' which will be used with the round function that will raise your error because the round built-in function accepts only numbers as argument

you can use:

for i in range(len(datos)):

    a = 7
    b = 8

    if a < b:                
        print('Does not apply')
    elif a > b:            
        Respuesta = (0.7*datos[i][0]*datos[i][1])/(b-a)    

        print(f"{i+1:02} {round(Respuesta, 2):>20}")

since in your code, a is always < b (7<8) you can use the following one line:

print(*['Does not apply'] * len(datos), sep='\n')

edited Apr 14, 2020 at 18:34

answered Apr 14, 2020 at 18:20

kederrac

17.4k6 gold badges36 silver badges58 bronze badges

1 Comment

DaniV Over a year ago

Thank you very much for the feedback.

Collectives™ on Stack Overflow

Print data in console in python

2 Answers 2

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related