I need help on Aritmatic formatter

Python
1

How do I print my output in one line?

def arithmetic_arranger(problems, args = True):
    if len(problems) > 5:
        return "Error: Too many problems."
    else:
        arranged_problems = []
        for problem in problems:
            x =problem.split()
            num1 = x[0]
            num2 = x[2]
            opr = x[1]
            if opr not in ["+" , "-"]:
                return "Error: Operator must be '+' or '-'."
            else:
                for y in num1:
                    if y.isdigit():
                        continue
                    else:
                        return "Error: Numbers must only contain digits."
                for z in num2:
                    if z.isdigit():
                        continue
                    else:
                        return "Error: Numbers must only contain digits."
                
                if len(num1) > 4 or len(num2) > 4:
                    return "Error: Numbers cannot be more than four digits."
                else:
                    
                    if opr == "+":
                        answer = int(num1) + int(num2)
                    elif opr == "-":
                        answer = int(num1) - int(num2)
                    
                    width = max(len(num1), len(num2)) + 2
                    fline = str(num1.rjust(width))
                    sline = str(opr + num2.rjust(width - 1))
                    tline = str("-" * width)
                    aline = str(answer).rjust(width)
                     
                    if args == True:
                        arranged_problem = (fline + "\n" + sline + "\n" + tline + "\n" + aline)
                        arranged_problems.append(arranged_problem)
                    elif args == False:
                        arranged_problem = (fline + "\n" + sline + "\n" + tline + "\n")
                        arranged_problems.append(arranged_problem)
        for kk in arranged_problems:
            print("\n")
            print(kk)
    return arranged_problems
print(arithmetic_arranger(["32 + 698", "3801 - 2", "45 + 43", "123 + 49"]))
2

do not use print
to pass the tests you need to have the value returned from the function be a string of required value

3

I tried this but the output is looks like this
[' 32\n+ 698\n-----\n 730', ' 3801\n- 2\n------\n 3799', ' 45\n+ 43\n----\n 88', ' 123\n+ 49\n-----\n 172']

4

that seems a list of strings, not a string

plus the operations needs to be side by side

(all the first operands on first line, all second operands on second line…)

5

Now, Im only get last problem that we enter.(123 + 49)

6

you probably need to review a bit your logic

rememer that to get something like

A      D
B      E
C      F

you need to write

"A      D\nB      E\nC      F"
7

I couldn’t found the error.I failed the first test sitiation.My code is:

def arithmetic_arranger(problems, args = True):
    if len(problems) > 5:
        return "Error: Too many problems."
    else:
        fline = ""
        sline = ""
        tline = ""
        aline = ""
        arranged_problems = []
        for problem in problems:
            x = problem.split()
            num1 = x[0]
            num2 = x[2]
            opr = x[1]
            if opr not in ["+" , "-"]:
                return "Error: Operator must be '+' or '-'."
            else:
                for y in num1:
                    if y.isdigit():
                        continue
                    else:
                        return "Error: Numbers must only contain digits."
                for z in num2:
                    if z.isdigit():
                        continue
                    else:
                        return "Error: Numbers must only contain digits."
                
                if len(num1) > 4 or len(num2) > 4:
                    return "Error: Numbers cannot be more than four digits."
                else:
                    
                    if opr == "+":
                        answer = int(num1) + int(num2)
                    elif opr == "-":
                        answer = int(num1) - int(num2)
                    
                    width = max(len(num1), len(num2)) + 2
                    fline += str(num1.rjust(width))
                    sline += str(opr + num2.rjust(width - 1))
                    tline += str("-" * width)
                    aline += str(answer).rjust(width)

                    if problem != problems[-1]:
                        fline += "    "
                        sline += "    "
                        tline += "    "
                        aline += "    " 
                        
                    if args == True:
                        arranged_problems = (fline + "\n" + sline + "\n" + tline + "\n" + aline)
                        
                    elif args == False:
                        arranged_problems = (fline + "\n" + sline + "\n" + tline + "\n")
                        
    return arranged_problems

Error :

FAIL: test_arrangement (test_module.UnitTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/RingedMellowDecimal/test_module.py", line 10, in test_arrangement
    self.assertEqual(actual, expected, 'Expected different output when calling "arithmetic_arranger()" with ["3 + 855", "3801 - 2", "45 + 43", "123 + 49"]')
AssertionError: '    [68 chars]-    ------    ----    -----\n  858      3799      88      172' != '    [68 chars]-    ------    ----    -----'
      3      3801      45      123
  + 855    -    2    + 43    +  49
- -----    ------    ----    -----
?                                 -
+ -----    ------    ----    ------   858      3799      88      172 : Expected different output when calling "arithmetic_arranger()" with ["3 + 855", "3801 - 2", "45 + 43", "123 + 49"]
8

look at the line starting with a ?, it marks the difference betweek what you should have and what you have, look at that dash: there is an extra character at the end of your string that shouldn’t be there

1 Like
9

Thank you so much for helping me.