I don’t know how to solve two errors in my code. I can’t think of how to approach it. I am very beginner.
Here is the code
def arithmetic_arranger(problems, answer=True):
arranged_problems = ""
if len(problems) > 5:
return "Error: Too many problems."
first_line = ""
second_line = ""
third_line = ""
fourth_line = ""
for problem in problems:
firsts, operator, seconds = problem.split()
if not firsts.isdigit() or not seconds.isdigit():
return "Error: Numbers must only contain digits."
if operator in ["+", "-"]:
if operator == "+":
ans = str(int(firsts) + int(seconds))
else:
ans = str(int(firsts) - int(seconds))
else:
return "Error: Operator must be '+' or '-'."
if (len(firsts) > 4 or len(seconds) > 4):
return "Error: Numbers cannot be more than four digits."
greater = (len(firsts) if len(firsts) > len(seconds) else len(seconds))
first_line += (" " * (greater - len(firsts) + 2) + firsts + " " * 4)
second_line += (operator + " " * (greater - len(seconds) + 1) + seconds + " " * 4)
third_line += "-" * (greater + 2) + " " * 4
fourth_line += (" " * (greater - len(ans) + 2) + ans + " " * 4)
if answer:
arranged_problems = (first_line + "\n" + second_line + "\n" + third_line + "\n" + fourth_line )
else:
arranged_problems = (first_line + "\n" + second_line + "\n" + third_line)
return arranged_problems
and Here is the error
python main.py
3 3801 45 123
+ 855 - 2 + 43 + 49
----- ------ ---- -----
858 3799 88 172
F..F..
======================================================================
FAIL: test_arrangement (test_module.UnitTests)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/runner/arithmetic-challenge/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: ' [23 chars] 123 \n+ 855 - 2 + 43 + 49 [73 chars] ' != ' [23 chars] 123\n+ 855 - 2 + 43 + 49\n-----[23 chars]----'
- 3 3801 45 123
? ----
+ 3 3801 45 123
- + 855 - 2 + 43 + 49
? ----
+ + 855 - 2 + 43 + 49
- ----- ------ ---- -----
? -----
+ ----- ------ ---- ------ 858 3799 88 172 : Expected different output when calling "arithmetic_arranger()" with ["3 + 855", "3801 - 2", "45 + 43", "123 + 49"]
======================================================================
FAIL: test_solutions (test_module.UnitTests)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/runner/arithmetic-challenge/test_module.py", line 39, in test_solutions
self.assertEqual(actual, expected, 'Expected solutions to be correctly displayed in output when calling "arithmetic_arranger()" with arithmetic problems and a second argument of `True`.')
AssertionError: ' 3[23 chars] 123 \n- 698 - 3801 + 43 + 49 [73 chars] ' != ' 3[23 chars] 123\n- 698 - 3801 + 43 + 49\n-----[57 chars] 172'
- 32 1 45 123
? ----
+ 32 1 45 123
- - 698 - 3801 + 43 + 49
? ----
+ - 698 - 3801 + 43 + 49
- ----- ------ ---- -----
? ----
+ ----- ------ ---- -----
- -666 -3800 88 172 ? ----
+ -666 -3800 88 172 : Expected solutions to be correctly displayed in output when calling "arithmetic_arranger()" with arithmetic problems and a second argument of `True`.
----------------------------------------------------------------------
Ran 6 tests in 0.004s
FAILED (failures=2)
Plus I don’t know how to make a code of my own. I ve been studying in the way of copying codes in books or other people’s codes if I understand the codes I am copying.
I am not sure that’s the right way to study programming.
