Arithmetic Formatter Test failure

Hi All,

My code is running ok and passes all the tests when i run them manually but fails with the test module.

Any advice or pointers as to why?

def arithmetic_arranger(problems):

``````arranged_problems=0
arranged_problems=[]

## Length test
if len(problems)>5:
print("Error: Too many problems.")

else:
for i in problems:
x=i.split()
n1=(x[0])
symbol= x[1]
n2=(x[2])

## operator test
if symbol == "*" or symbol == "/":
print("Error: Operator must be '+' or '-'.")

else:

fstlength=len(n1)

sndlength=len(n2)

## len test
if fstlength>4 or sndlength>4:
print("Error: Numbers cannot be more than four digits.")
break
else:

## digit test
if n1.isalpha() or n2.isalpha() == False:
pass
else:
print("Error: Numbers must only contain digits.")

n1=int(n1)
n2=int(n2)

## calculation
if symbol == "+":
else:

## display
dashsize=0
if fstlength<sndlength:
dashsize=sndlength+2
else:
dashsize = fstlength+2

dashes=str("-"*dashsize)
n3=str(n1)
n4=str(n2)

line1=str(n3.rjust(dashsize))
line2=str(symbol)+str(n4.rjust(dashsize-1))
line3=dashes
line4=str(final.rjust(dashsize))

##print("\nXXXXXX\n "+ x+" \nXXXXXXX\n")
arranged_problems.append(line1)
arranged_problems.append(line2)
arranged_problems.append(line3)
arranged_problems.append(line4)

top =str(arranged_problems[0]+"    "+arranged_problems[4]+"    "+arranged_problems[8]+"    "+arranged_problems[12]+"\n")
bot =str(arranged_problems[1]+"    "+arranged_problems[5]+"    "+arranged_problems[9]+"    "+arranged_problems[13]+"\n")
das =str(arranged_problems[2]+"    "+arranged_problems[6]+"    "+arranged_problems[10]+"    "+arranged_problems[14]+"\n")
ans =str(arranged_problems[3]+"    "+arranged_problems[7]+"    "+arranged_problems[11]+"    "+arranged_problems[15]+"\n")
arranged_problems=top+bot+das+ans
return arranged_problems
``````

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36 Edg/85.0.564.41`.

Challenge: Arithmetic Formatter

can you share your repl? what’s the test output?