Feb-12-2024, 01:29 PM
hi
in site: https://www.pythonmorsels.com/exercises/.../submit/1/
has been discussed the problem of adding two list of lists.
there, has been given several solutions. I copied and paste all solution in a .py file as below:
what I did, was I first renamed all add functions except one and the run test file, and then I saw the result of it.
for the other add function, I again renamed the add function in the before stage ( to sth other than add) and renamed one of the other add functions( rename to add) and the run test file again.
but it is very time-consuming.
do you know a better way to do that? namely, do you know any method to run each add function without renaming all? is there any way?
thanks.
in site: https://www.pythonmorsels.com/exercises/.../submit/1/
has been discussed the problem of adding two list of lists.
there, has been given several solutions. I copied and paste all solution in a .py file as below:
'''
add two list of lists.
problem: https://www.pythonmorsels.com/exercises/cb8fbdd52cf14f8cb31df4f06343cccf/submit/1/
solution by :https://www.pythonmorsels.com/exercises/cb8fbdd52cf14f8cb31df4f06343cccf/solution/
'''
# solution1
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for i in range(len(matrix1)):
row = []
for j in range(len(matrix1[i])):
row.append(matrix1[i][j] + matrix2[i][j])
combined.append(row)
return combined
#solution2:
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for rows in zip(matrix1, matrix2):
row = []
for items in zip(rows[0], rows[1]):
row.append(items[0] + items[1])
combined.append(row)
return combined
# solution3
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for row1, row2 in zip(matrix1, matrix2):
row = []
for n, m in zip(row1, row2):
row.append(n + m)
combined.append(row)
return combined
#solution4
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for row1, row2 in zip(matrix1, matrix2):
row = [
n + m
for n, m in zip(row1, row2)
]
combined.append(row)
return combined
#solution5
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for row1, row2 in zip(matrix1, matrix2):
combined.append([
n + m
for n, m in zip(row1, row2)
])
return combined
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for row1, row2 in zip(matrix1, matrix2):
combined.append([n + m for n, m in zip(row1, row2)])
return combined
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
return [
[n + m for n, m in zip(row1, row2)]
for row1, row2 in zip(matrix1, matrix2)
]
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
return [[n+m for n, m in zip(r1, r2)] for r1, r2 in zip(matrix1, matrix2)]
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
return [
[n + m for n, m in zip(row1, row2)]
for row1, row2 in zip(matrix1, matrix2)
]
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for row1, row2 in zip(matrix1, matrix2):
row = []
for n, m in zip(row1, row2):
row.append(n + m)
combined.append(row)
return combined
#bonus1 refer to:https://www.pythonmorsels.com/exercises/cb8fbdd52cf14f8cb31df4f06343cccf/submit/1/
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for rows in zip(*matrices):
row = []
for values in zip(*rows):
total = 0
for n in values:
total += n
row.append(total)
combined.append(row)
return combined
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
combined = []
for rows in zip(*matrices):
row = []
for values in zip(*rows):
row.append(sum(values))
combined.append(row)
return combined
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
return [
[sum(values) for values in zip(*rows)]
for rows in zip(*matrices)
]
#bonus2 #https://www.pythonmorsels.com/exercises/cb8fbdd52cf14f8cb31df4f06343cccf/submit/1/
def add(matrix1, matrix2):
"""Add corresponding numbers in given 2-D matrices."""
if [len(r) for r in matrix1] != [len(r) for r in matrix2]:
raise ValueError("Given matrices are not the same size.")
return [
[n + m for n, m in zip(row1, row2)]
for row1, row2 in zip(matrix1, matrix2)
]
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
matrix_shapes = {
tuple(len(r) for r in matrix)
for matrix in matrices
}
if len(matrix_shapes) > 1:
raise ValueError("Given matrices are not the same size.")
return [
[sum(values) for values in zip(*rows)]
for rows in zip(*matrices)
]
from itertools import zip_longest
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
try:
return [
[sum(values) for values in zip_longest(*rows)]
for rows in zip_longest(*matrices)
]
except TypeError as e:
raise ValueError("Given matrices are not the same size.") from e
def get_shape(matrix):
return [len(r) for r in matrix]
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
shape_of_matrix = get_shape(matrices[0])
if any(get_shape(m) != shape_of_matrix for m in matrices):
raise ValueError("Given matrices are not the same size.")
return [
[sum(values) for values in zip(*rows)]
for rows in zip(*matrices)
]
def add(*matrices):
"""Add corresponding numbers in given 2-D matrices."""
return [
[sum(values) for values in zip(*rows, strict=True)]
for rows in zip(*matrices, strict=True)
]the test file is :from contextlib import redirect_stdout
from copy import deepcopy
from io import StringIO
import unittest
from add import add
class AddTests(unittest.TestCase):
"""Tests for add."""
def test_zreturn_instead_of_print(self):
with redirect_stdout(StringIO()) as stdout:
actual = add([[5]], [[-2]])
output = stdout.getvalue().strip()
if actual is None and output:
self.fail(
"\n\nUh oh!\n"
"It looks like you may have printed instead of returning.\n"
"See https://pym.dev/print-vs-return/\n"
f"None was returned but this was printed:\n{output}"
)
def test_single_items(self):
self.assertEqual(add([[5]], [[-2]]), [[3]])
def test_two_by_two_matrixes(self):
m1 = [[6, 6], [3, 1]]
m2 = [[1, 2], [3, 4]]
m3 = [[7, 8], [6, 5]]
self.assertEqual(add(m1, m2), m3)
def test_two_by_three_matrixes(self):
m1 = [[1, 2, 3], [4, 5, 6]]
m2 = [[-1, -2, -3], [-4, -5, -6]]
m3 = [[0, 0, 0], [0, 0, 0]]
self.assertEqual(add(m1, m2), m3)
def test_input_unchanged(self):
m1 = [[6, 6], [3, 1]]
m2 = [[1, 2], [3, 4]]
m1_original = deepcopy(m1)
m2_original = deepcopy(m2)
add(m1, m2)
self.assertEqual(m1, m1_original)
self.assertEqual(m2, m2_original)
# To test bonus 1, comment out the next line
@unittest.expectedFailure
def test_any_number_of_matrixes(self):
m1 = [[6, 6], [3, 1]]
m2 = [[1, 2], [3, 4]]
m3 = [[2, 1], [3, 4]]
m4 = [[9, 9], [9, 9]]
m5 = [[31, 32], [27, 24]]
self.assertEqual(add(m1, m2, m3), m4)
self.assertEqual(add(m2, m3, m1, m1, m2, m4, m1), m5)
# To test bonus 2, comment out the next line
@unittest.expectedFailure
def test_different_matrix_size(self):
m1 = [[6, 6], [3, 1]]
m2 = [[1, 2], [3, 4], [5, 6]]
m3 = [[6, 6], [3, 1, 2]]
with self.assertRaises(ValueError):
add(m1, m2)
with self.assertRaises(ValueError):
add(m1, m3)
with self.assertRaises(ValueError):
add(m1, m1, m1, m3, m1, m1)
with self.assertRaises(ValueError):
add(m1, m1, m1, m2, m1, m1)
class AllowUnexpectedSuccessRunner(unittest.TextTestRunner):
"""Custom test runner to avoid FAILED message on unexpected successes."""
class resultclass(unittest.TextTestResult):
def wasSuccessful(self):
return not (self.failures or self.errors)
if __name__ == "__main__":
from platform import python_version
import sys
if sys.version_info < (3, 6):
sys.exit("Running {}. Python 3.6 required.".format(python_version()))
unittest.main(verbosity=2, testRunner=AllowUnexpectedSuccessRunner)I want to call each add function and see the result of it.what I did, was I first renamed all add functions except one and the run test file, and then I saw the result of it.
for the other add function, I again renamed the add function in the before stage ( to sth other than add) and renamed one of the other add functions( rename to add) and the run test file again.
but it is very time-consuming.
do you know a better way to do that? namely, do you know any method to run each add function without renaming all? is there any way?
thanks.
![[Image: aIdQxC.png]](https://imagizer.imageshack.com/v2/xq70/922/aIdQxC.png)
![[Image: KHNGcr.png]](https://imagizer.imageshack.com/v2/xq70/924/KHNGcr.png)
