Hi! Me again.
I got errors. I do not understand. The issue:
================================================== test session starts ===================================================
platform linux -- Python 3.10.8, pytest-6.2.5, py-1.11.0, pluggy-1.0.0 -- /home/runner/boilerplate-arithmetic-formatter/venv/bin/python3
cachedir: .pytest_cache
rootdir: /home/runner/boilerplate-arithmetic-formatter
collected 10 items
test_module.py::test_template[test_two_problems_arrangement1] FAILED [ 10%]
test_module.py::test_template[test_two_problems_arrangement2] FAILED [ 20%]
test_module.py::test_template[test_four_problems_arrangement] FAILED [ 30%]
test_module.py::test_template[test_five_problems_arrangement] FAILED [ 40%]
test_module.py::test_template[test_too_many_problems] PASSED [ 50%]
test_module.py::test_template[test_incorrect_operator] PASSED [ 60%]
test_module.py::test_template[test_too_many_digits] PASSED [ 70%]
test_module.py::test_template[test_only_digits] PASSED [ 80%]
test_module.py::test_template[test_two_problems_with_solutions] PASSED [ 90%]
test_module.py::test_template[test_five_problems_with_solutions] PASSED [100%]
======================================================== FAILURES ========================================================
_____________________________________ test_template[test_two_problems_arrangement1] ______________________________________
arguments = [['3801 - 2', '123 + 49']], expected_output = ' 3801 123\n- 2 + 49\n------ -----'
fail_message = 'Expected different output when calling "arithmetic_arranger()" with ["3801 - 2", "123 + 49"]'
@pytest.mark.parametrize('arguments,expected_output,fail_message', test_cases)
def test_template(arguments, expected_output, fail_message):
actual = arithmetic_arranger(*arguments)
> assert actual == expected_output, fail_message
E AssertionError: Expected different output when calling "arithmetic_arranger()" with ["3801 - 2", "123 + 49"]
E assert ' 3801 123\n- 2 + 49\n------ -----\n 3799 172' == ' 3801 123\n- 2 + 49\n------ -----'
E 3801 123
E - 2 + 49
E - ------ -----
E + ------ -----
E ? +
E + 3799 172
test_module.py:77: AssertionError
_____________________________________ test_template[test_two_problems_arrangement2] ______________________________________
arguments = [['1 + 2', '1 - 9380']], expected_output = ' 1 1\n+ 2 - 9380\n--- ------'
fail_message = 'Expected different output when calling "arithmetic_arranger()" with ["1 + 2", "1 - 9380"]'
@pytest.mark.parametrize('arguments,expected_output,fail_message', test_cases)
def test_template(arguments, expected_output, fail_message):
actual = arithmetic_arranger(*arguments)
> assert actual == expected_output, fail_message
E AssertionError: Expected different output when calling "arithmetic_arranger()" with ["1 + 2", "1 - 9380"]
E assert ' 1 1\n+ 2 - 9380\n--- ------\n 3 -9379' == ' 1 1\n+ 2 - 9380\n--- ------'
E 1 1
E + 2 - 9380
E - --- ------
E + --- ------
E ? +
E + 3 -9379
test_module.py:77: AssertionError
_____________________________________ test_template[test_four_problems_arrangement] ______________________________________
arguments = [['3 + 855', '3801 - 2', '45 + 43', '123 + 49']]
expected_output = ' 3 3801 45 123\n+ 855 - 2 + 43 + 49\n----- ------ ---- -----'
fail_message = 'Expected different output when calling "arithmetic_arranger()" with ["3 + 855", "3801 - 2", "45 + 43", "123 + 49"]'
@pytest.mark.parametrize('arguments,expected_output,fail_message', test_cases)
def test_template(arguments, expected_output, fail_message):
actual = arithmetic_arranger(*arguments)
> assert actual == expected_output, fail_message
E AssertionError: Expected different output when calling "arithmetic_arranger()" with ["3 + 855", "3801 - 2", "45 + 43", "123 + 49"]
E assert (' 3 3801 45 123\n'\n '+ 855 - 2 + 43 + 49\n'\n '----- ------ ---- -----\n'\n ' 858 3799 88 172') == (' 3 3801 45 123\n'\n '+ 855 - 2 + 43 + 49\n'\n '----- ------ ---- -----')
E 3 3801 45 123
E + 855 - 2 + 43 + 49
E - ----- ------ ---- -----
E + ----- ------ ---- -----
E ? +
E + 858 3799 88 172
test_module.py:77: AssertionError
_____________________________________ test_template[test_five_problems_arrangement] ______________________________________
arguments = [['11 + 4', '3801 - 2999', '1 + 2', '123 + 49', '1 - 9380']]
expected_output = ' 11 3801 1 123 1\n+ 4 - 2999 + 2 + 49 - 9380\n---- ------ --- ----- ------'
fail_message = 'Expected different output when calling "arithmetic_arranger()" with ["11 + 4", "3801 - 2999", "1 + 2", "123 + 49", "1 - 9380"]'
@pytest.mark.parametrize('arguments,expected_output,fail_message', test_cases)
def test_template(arguments, expected_output, fail_message):
actual = arithmetic_arranger(*arguments)
> assert actual == expected_output, fail_message
E AssertionError: Expected different output when calling "arithmetic_arranger()" with ["11 + 4", "3801 - 2999", "1 + 2", "123 + 49", "1 - 9380"]
E assert (' 11 3801 1 123 1\n'\n '+ 4 - 2999 + 2 + 49 - 9380\n'\n '---- ------ --- ----- ------\n'\n ' 15 802 3 172 -9379') == (' 11 3801 1 123 1\n'\n '+ 4 - 2999 + 2 + 49 - 9380\n'\n '---- ------ --- ----- ------')
E 11 3801 1 123 1
E + 4 - 2999 + 2 + 49 - 9380
E - ---- ------ --- ----- ------
E + ---- ------ --- ----- ------
E ? +
E + 15 802 3 172 -9379
test_module.py:77: AssertionError
================================================ short test summary info =================================================
FAILED test_module.py::test_template[test_two_problems_arrangement1] - AssertionError: Expected different output when c...
FAILED test_module.py::test_template[test_two_problems_arrangement2] - AssertionError: Expected different output when c...
FAILED test_module.py::test_template[test_four_problems_arrangement] - AssertionError: Expected different output when c...
FAILED test_module.py::test_template[test_five_problems_arrangement] - AssertionError: Expected different output when c...
============================================== 4 failed, 6 passed in 0.19s ===============================================
My code:
def arithmetic_arranger(problems, show = True):
#print(arithmetic_arranger(["32 + 698", "3801 - 2", "45 + 43", "123 + 49"], True))
arranged_problems = []
#too many problems supplied
if len(problems)>5:
return "Error: Too many problems."
for i, ele in enumerate(problems):
sub = ele.split()
num1 = sub[0]
oper = sub[1]
num2 = sub[2]
#appropriate operators "+","-"
if sub[1] not in "-+":
return "Error: Operator must be '+' or '-'."
#only contain digits
if sub[0].isdigit() and sub[2].isdigit() is False:
return "Error: Numbers must only contain digits."
#max 4 digits
if len(sub[0])>4 or len(sub[2])>4:
return "Error: Numbers cannot be more than four digits."
ray = "-"
maxlen_line = max(len(num1), len(num2))
ach = maxlen_line + 2
line_num1 = f"{num1:>{ach}}"
line_num2 = oper + f"{num2:>{ach-1}}"
line_rays = ray*ach
try:
arranged_problems[0] += (" "*4) + line_num1
except IndexError:
arranged_problems.append(line_num1)
try:
arranged_problems[1] += (" "*4) + line_num2
except IndexError:
arranged_problems.append(line_num2)
try:
arranged_problems[2] += (" "*4) + line_rays
except IndexError:
arranged_problems.append(line_rays)
answ = 0
if oper == "+":
answ = int(num1) + int(num2)
else:
answ = int(num1) - int(num2)
line_answ = f"{str(answ):>{ach}}"
try:
arranged_problems[3] += (" "*4) + line_answ
except IndexError:
arranged_problems.append(line_answ)
if show == True:
arranged_problems = f"{arranged_problems[0]}\n{arranged_problems[1]}\n{arranged_problems[2]}\n{arranged_problems[3]}"
else:
arranged_problems = f"{arranged_problems[0]}\n{arranged_problems[1]}\n{arranged_problems[2]}"
return arranged_problems
Thaks for all 
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 Edg/109.0.1518.78
Challenge: Scientific Computing with Python Projects - Arithmetic Formatter
Link to the challenge: