Arithmatic Calculator, Need Help Pls

Python
#1

Tell us what’s happening:
Guys I repeatedly get test_argument error when I set the second argument ‘calculation’ to True.
can anyone help me with this pls, I’m new to programming.

Your code so far
def arithmetic_arranger(problems,calculation = True):
lst =
arranged_problems = “”
if((len(problems) > 5)):
arranged_problems = “Error: Too many problems.”

else:
    for i in problems:
        lst.append(i.split())
        if(not(i.split()[0].isnumeric()) or not(i.split()[2].isnumeric())):
            return "Error: Numbers must only contain digits."
    for i in lst:
        if(len(i[0]) > 4):
            return "Error: Numbers cannot be more than four digits."
        if(not(len(i[0]) == 4)):
            spc = ''
            spc_up = len(i[0])
            spc_down = len(i[2])
            if spc_up < spc_down: 
                spc_len = spc_down - spc_up 
            else:
                spc_len = 0
        else:
            spc_len = 0
        spc = (spc_len + 2) * " "
        arranged_problems += spc + i[0] + "    "
    arranged_problems = arranged_problems.rstrip(" ")
    arranged_problems += "\n"

    for i in lst:
        if(len(i[2]) > 4):
            return "Error: Numbers cannot be more than four digits."
        if(i[1] == '*' or i[1] == '/'):
            return "Error: Operator must be '+' or '-'."

        if(not(len(i[0]) == 4)):
            spc = ''
            spc_up = len(i[0])
            spc_down = len(i[2])

            if(spc_up > spc_down):
                spc_len = spc_up - spc_down
            else:
                spc_len = 0
        else:
            spc_len = 4 - len(i[2])
        
        spc = (spc_len) * " "
        arranged_problems += i[1] + " " + spc + i[2] + "    "
    arranged_problems = arranged_problems.rstrip(" ")
    arranged_problems += "\n"

    for i in lst:
        spc_len = max(len(i[0]),len(i[2]))
        spc = (spc_len + 2) * "-"
        arranged_problems += spc + "    "

    arranged_problems = arranged_problems.rstrip(" ")

    if(calculation == True):
        arranged_problems += "\n"
        for i in lst:
            ev = str(i[0] + " " + i[1] + " " + i[2])
            spc_max = max(len(i[0]),len(i[2]))
            spc_len = 0
            if(eval(ev) < 0):
                spc_len -= 1
            if(len(str(eval(ev))) < spc_max):
                spc_len += spc_max - len(str(eval(ev)))
            spc = (spc_len + 2) * " "
            arranged_problems += spc + str(eval(ev)) + "    "
            
arranged_problems = arranged_problems.rstrip(" ")
return arranged_problems

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Challenge: Arithmetic Formatter

Link to the challenge:

#2

Wow i’m not even close to doing this i’m stuck with basically everything and i just started
this yesterday it’s really hard

#3