diff --git a/arithmetic_analysis/bisection.py b/arithmetic_analysis/bisection.py
index 640913a7a..e359cc170 100644
--- a/arithmetic_analysis/bisection.py
+++ b/arithmetic_analysis/bisection.py
@@ -8,7 +8,7 @@ def bisection(function: Callable[[float], float], a: float, b: float) -> float:
     1.0000000149011612
     >>> bisection(lambda x: x ** 3 - 1, 2, 1000)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not find root in given interval.
     >>> bisection(lambda x: x ** 2 - 4 * x + 3, 0, 2)
     1.0
@@ -16,7 +16,7 @@ def bisection(function: Callable[[float], float], a: float, b: float) -> float:
     3.0
     >>> bisection(lambda x: x ** 2 - 4 * x + 3, 4, 1000)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not find root in given interval.
     """
     start: float = a
diff --git a/arithmetic_analysis/intersection.py b/arithmetic_analysis/intersection.py
index 49213dd05..826c0ead0 100644
--- a/arithmetic_analysis/intersection.py
+++ b/arithmetic_analysis/intersection.py
@@ -10,7 +10,7 @@ def intersection(function: Callable[[float], float], x0: float, x1: float) -> fl
     0.9999999999954654
     >>> intersection(lambda x: x ** 3 - 1, 5, 5)
     Traceback (most recent call last):
-    ...
+        ...
     ZeroDivisionError: float division by zero, could not find root
     >>> intersection(lambda x: x ** 3 - 1, 100, 200)
     1.0000000000003888
@@ -24,7 +24,7 @@ def intersection(function: Callable[[float], float], x0: float, x1: float) -> fl
     0.0
     >>> intersection(math.cos, -math.pi, math.pi)
     Traceback (most recent call last):
-    ...
+        ...
     ZeroDivisionError: float division by zero, could not find root
     """
     x_n: float = x0
diff --git a/arithmetic_analysis/jacobi_iteration_method.py b/arithmetic_analysis/jacobi_iteration_method.py
index 3087309e8..fe506a94a 100644
--- a/arithmetic_analysis/jacobi_iteration_method.py
+++ b/arithmetic_analysis/jacobi_iteration_method.py
@@ -42,7 +42,7 @@ def jacobi_iteration_method(
     >>> iterations = 3
     >>> jacobi_iteration_method(coefficient, constant, init_val, iterations)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Coefficient matrix dimensions must be nxn but received 2x3
 
     >>> coefficient = np.array([[4, 1, 1], [1, 5, 2], [1, 2, 4]])
@@ -51,7 +51,7 @@ def jacobi_iteration_method(
     >>> iterations = 3
     >>> jacobi_iteration_method(coefficient, constant, init_val, iterations)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Coefficient and constant matrices dimensions must be nxn and nx1 but
                 received 3x3 and 2x1
 
@@ -61,7 +61,7 @@ def jacobi_iteration_method(
     >>> iterations = 3
     >>> jacobi_iteration_method(coefficient, constant, init_val, iterations)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Number of initial values must be equal to number of rows in coefficient
                 matrix but received 2 and 3
 
@@ -71,7 +71,7 @@ def jacobi_iteration_method(
     >>> iterations = 0
     >>> jacobi_iteration_method(coefficient, constant, init_val, iterations)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Iterations must be at least 1
     """
 
@@ -138,7 +138,7 @@ def strictly_diagonally_dominant(table: NDArray[float64]) -> bool:
     >>> table = np.array([[4, 1, 1, 2], [1, 5, 2, -6], [1, 2, 3, -4]])
     >>> strictly_diagonally_dominant(table)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Coefficient matrix is not strictly diagonally dominant
     """
 
diff --git a/arithmetic_analysis/lu_decomposition.py b/arithmetic_analysis/lu_decomposition.py
index 1e98b9066..217719cf4 100644
--- a/arithmetic_analysis/lu_decomposition.py
+++ b/arithmetic_analysis/lu_decomposition.py
@@ -31,7 +31,7 @@ def lower_upper_decomposition(
     >>> matrix = np.array([[2, -2, 1], [0, 1, 2]])
     >>> lower_upper_decomposition(matrix)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: 'table' has to be of square shaped array but got a 2x3 array:
     [[ 2 -2  1]
      [ 0  1  2]]
diff --git a/arithmetic_analysis/newton_method.py b/arithmetic_analysis/newton_method.py
index c4018a0f2..5127bfcaf 100644
--- a/arithmetic_analysis/newton_method.py
+++ b/arithmetic_analysis/newton_method.py
@@ -28,7 +28,7 @@ def newton(
     1.5707963267948966
     >>> newton(math.cos, lambda x: -math.sin(x), 0)
     Traceback (most recent call last):
-    ...
+        ...
     ZeroDivisionError: Could not find root
     """
     prev_guess = float(starting_int)
diff --git a/arithmetic_analysis/newton_raphson_new.py b/arithmetic_analysis/newton_raphson_new.py
index 19ea4ce21..dd1d7e092 100644
--- a/arithmetic_analysis/newton_raphson_new.py
+++ b/arithmetic_analysis/newton_raphson_new.py
@@ -32,7 +32,7 @@ def newton_raphson(
     1.2186556186174883e-10
     >>> newton_raphson('cos(x)', 0)
     Traceback (most recent call last):
-    ...
+        ...
     ZeroDivisionError: Could not find root
     """
 
diff --git a/backtracking/knight_tour.py b/backtracking/knight_tour.py
index 6e9b31bd1..bb650ece3 100644
--- a/backtracking/knight_tour.py
+++ b/backtracking/knight_tour.py
@@ -78,7 +78,7 @@ def open_knight_tour(n: int) -> list[list[int]]:
 
     >>> open_knight_tour(2)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Open Kight Tour cannot be performed on a board of size 2
     """
 
diff --git a/conversions/binary_to_decimal.py b/conversions/binary_to_decimal.py
index a7625e475..914a9318c 100644
--- a/conversions/binary_to_decimal.py
+++ b/conversions/binary_to_decimal.py
@@ -12,15 +12,15 @@ def bin_to_decimal(bin_string: str) -> int:
     0
     >>> bin_to_decimal("a")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-binary value was passed to the function
     >>> bin_to_decimal("")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Empty string was passed to the function
     >>> bin_to_decimal("39")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-binary value was passed to the function
     """
     bin_string = str(bin_string).strip()
diff --git a/conversions/binary_to_hexadecimal.py b/conversions/binary_to_hexadecimal.py
index 89f7af696..a3855bb70 100644
--- a/conversions/binary_to_hexadecimal.py
+++ b/conversions/binary_to_hexadecimal.py
@@ -30,11 +30,11 @@ def bin_to_hexadecimal(binary_str: str) -> str:
     '-0x1d'
     >>> bin_to_hexadecimal('a')
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-binary value was passed to the function
     >>> bin_to_hexadecimal('')
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Empty string was passed to the function
     """
     # Sanitising parameter
diff --git a/conversions/binary_to_octal.py b/conversions/binary_to_octal.py
index 35ede95b1..82f81e062 100644
--- a/conversions/binary_to_octal.py
+++ b/conversions/binary_to_octal.py
@@ -9,11 +9,11 @@ The function below will convert any binary string to the octal equivalent.
 
 >>> bin_to_octal("")
 Traceback (most recent call last):
-...
+    ...
 ValueError: Empty string was passed to the function
 >>> bin_to_octal("a-1")
 Traceback (most recent call last):
-...
+    ...
 ValueError: Non-binary value was passed to the function
 """
 
diff --git a/conversions/decimal_to_any.py b/conversions/decimal_to_any.py
index 908c89e8f..11a2af294 100644
--- a/conversions/decimal_to_any.py
+++ b/conversions/decimal_to_any.py
@@ -29,32 +29,32 @@ def decimal_to_any(num: int, base: int) -> str:
     >>> # negatives will error
     >>> decimal_to_any(-45, 8)  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: parameter must be positive int
     >>> # floats will error
     >>> decimal_to_any(34.4, 6) # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: int() can't convert non-string with explicit base
     >>> # a float base will error
     >>> decimal_to_any(5, 2.5) # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: 'float' object cannot be interpreted as an integer
     >>> # a str base will error
     >>> decimal_to_any(10, '16') # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: 'str' object cannot be interpreted as an integer
     >>> # a base less than 2 will error
     >>> decimal_to_any(7, 0) # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: base must be >= 2
     >>> # a base greater than 36 will error
     >>> decimal_to_any(34, 37) # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: base must be <= 36
     """
     if isinstance(num, float):
diff --git a/conversions/decimal_to_binary.py b/conversions/decimal_to_binary.py
index c21cdbcae..cfda57ca7 100644
--- a/conversions/decimal_to_binary.py
+++ b/conversions/decimal_to_binary.py
@@ -19,12 +19,12 @@ def decimal_to_binary(num: int) -> str:
     >>> # other floats will error
     >>> decimal_to_binary(16.16) # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: 'float' object cannot be interpreted as an integer
     >>> # strings will error as well
     >>> decimal_to_binary('0xfffff') # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: 'str' object cannot be interpreted as an integer
     """
 
diff --git a/conversions/decimal_to_binary_recursion.py b/conversions/decimal_to_binary_recursion.py
index c149ea865..05833ca67 100644
--- a/conversions/decimal_to_binary_recursion.py
+++ b/conversions/decimal_to_binary_recursion.py
@@ -7,7 +7,7 @@ def binary_recursive(decimal: int) -> str:
     '1001000'
     >>> binary_recursive("number")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: invalid literal for int() with base 10: 'number'
     """
     decimal = int(decimal)
@@ -30,11 +30,11 @@ def main(number: str) -> str:
     '-0b101000'
     >>> main(40.8)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Input value is not an integer
     >>> main("forty")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Input value is not an integer
     """
     number = str(number).strip()
diff --git a/conversions/decimal_to_hexadecimal.py b/conversions/decimal_to_hexadecimal.py
index 2389c6d1f..5ea48401f 100644
--- a/conversions/decimal_to_hexadecimal.py
+++ b/conversions/decimal_to_hexadecimal.py
@@ -46,12 +46,12 @@ def decimal_to_hexadecimal(decimal: float) -> str:
     >>> # other floats will error
     >>> decimal_to_hexadecimal(16.16) # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     AssertionError
     >>> # strings will error as well
     >>> decimal_to_hexadecimal('0xfffff') # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     AssertionError
     >>> # results are the same when compared to Python's default hex function
     >>> decimal_to_hexadecimal(-256) == hex(-256)
diff --git a/conversions/hex_to_bin.py b/conversions/hex_to_bin.py
index e358d810b..b872ab5cb 100644
--- a/conversions/hex_to_bin.py
+++ b/conversions/hex_to_bin.py
@@ -21,11 +21,11 @@ def hex_to_bin(hex_num: str) -> int:
     -1111111111111111
     >>> hex_to_bin("F-f")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Invalid value was passed to the function
     >>> hex_to_bin("")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: No value was passed to the function
     """
 
diff --git a/conversions/hexadecimal_to_decimal.py b/conversions/hexadecimal_to_decimal.py
index beb1c2c3d..209e4aebb 100644
--- a/conversions/hexadecimal_to_decimal.py
+++ b/conversions/hexadecimal_to_decimal.py
@@ -18,15 +18,15 @@ def hex_to_decimal(hex_string: str) -> int:
     -255
     >>> hex_to_decimal("F-f")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-hexadecimal value was passed to the function
     >>> hex_to_decimal("")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Empty string was passed to the function
     >>> hex_to_decimal("12m")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-hexadecimal value was passed to the function
     """
     hex_string = hex_string.strip().lower()
diff --git a/conversions/octal_to_decimal.py b/conversions/octal_to_decimal.py
index 551311e26..7f006f20e 100644
--- a/conversions/octal_to_decimal.py
+++ b/conversions/octal_to_decimal.py
@@ -4,27 +4,27 @@ def oct_to_decimal(oct_string: str) -> int:
 
     >>> oct_to_decimal("")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Empty string was passed to the function
     >>> oct_to_decimal("-")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("e")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("8")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("-e")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("-8")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("1")
     1
@@ -38,7 +38,7 @@ def oct_to_decimal(oct_string: str) -> int:
     -37
     >>> oct_to_decimal("-")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("0")
     0
@@ -46,15 +46,15 @@ def oct_to_decimal(oct_string: str) -> int:
     -2093
     >>> oct_to_decimal("2-0Fm")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     >>> oct_to_decimal("")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Empty string was passed to the function
     >>> oct_to_decimal("19")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Non-octal value was passed to the function
     """
     oct_string = str(oct_string).strip()
diff --git a/conversions/temperature_conversions.py b/conversions/temperature_conversions.py
index 167c9dc64..e5af46556 100644
--- a/conversions/temperature_conversions.py
+++ b/conversions/temperature_conversions.py
@@ -23,7 +23,7 @@ def celsius_to_fahrenheit(celsius: float, ndigits: int = 2) -> float:
     104.0
     >>> celsius_to_fahrenheit("celsius")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'celsius'
     """
     return round((float(celsius) * 9 / 5) + 32, ndigits)
@@ -47,7 +47,7 @@ def celsius_to_kelvin(celsius: float, ndigits: int = 2) -> float:
     313.15
     >>> celsius_to_kelvin("celsius")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'celsius'
     """
     return round(float(celsius) + 273.15, ndigits)
@@ -71,7 +71,7 @@ def celsius_to_rankine(celsius: float, ndigits: int = 2) -> float:
     563.67
     >>> celsius_to_rankine("celsius")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'celsius'
     """
     return round((float(celsius) * 9 / 5) + 491.67, ndigits)
@@ -101,7 +101,7 @@ def fahrenheit_to_celsius(fahrenheit: float, ndigits: int = 2) -> float:
     37.78
     >>> fahrenheit_to_celsius("fahrenheit")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'fahrenheit'
     """
     return round((float(fahrenheit) - 32) * 5 / 9, ndigits)
@@ -131,7 +131,7 @@ def fahrenheit_to_kelvin(fahrenheit: float, ndigits: int = 2) -> float:
     310.93
     >>> fahrenheit_to_kelvin("fahrenheit")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'fahrenheit'
     """
     return round(((float(fahrenheit) - 32) * 5 / 9) + 273.15, ndigits)
@@ -161,7 +161,7 @@ def fahrenheit_to_rankine(fahrenheit: float, ndigits: int = 2) -> float:
     559.67
     >>> fahrenheit_to_rankine("fahrenheit")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'fahrenheit'
     """
     return round(float(fahrenheit) + 459.67, ndigits)
@@ -185,7 +185,7 @@ def kelvin_to_celsius(kelvin: float, ndigits: int = 2) -> float:
     42.35
     >>> kelvin_to_celsius("kelvin")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'kelvin'
     """
     return round(float(kelvin) - 273.15, ndigits)
@@ -209,7 +209,7 @@ def kelvin_to_fahrenheit(kelvin: float, ndigits: int = 2) -> float:
     108.23
     >>> kelvin_to_fahrenheit("kelvin")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'kelvin'
     """
     return round(((float(kelvin) - 273.15) * 9 / 5) + 32, ndigits)
@@ -233,7 +233,7 @@ def kelvin_to_rankine(kelvin: float, ndigits: int = 2) -> float:
     72.0
     >>> kelvin_to_rankine("kelvin")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'kelvin'
     """
     return round((float(kelvin) * 9 / 5), ndigits)
@@ -257,7 +257,7 @@ def rankine_to_celsius(rankine: float, ndigits: int = 2) -> float:
     -97.87
     >>> rankine_to_celsius("rankine")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'rankine'
     """
     return round((float(rankine) - 491.67) * 5 / 9, ndigits)
@@ -277,7 +277,7 @@ def rankine_to_fahrenheit(rankine: float, ndigits: int = 2) -> float:
     -144.17
     >>> rankine_to_fahrenheit("rankine")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'rankine'
     """
     return round(float(rankine) - 459.67, ndigits)
@@ -297,7 +297,7 @@ def rankine_to_kelvin(rankine: float, ndigits: int = 2) -> float:
     22.22
     >>> rankine_to_kelvin("rankine")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'rankine'
     """
     return round((float(rankine) * 5 / 9), ndigits)
@@ -316,7 +316,7 @@ def reaumur_to_kelvin(reaumur: float, ndigits: int = 2) -> float:
     323.15
     >>> reaumur_to_kelvin("reaumur")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'reaumur'
     """
     return round((float(reaumur) * 1.25 + 273.15), ndigits)
@@ -335,7 +335,7 @@ def reaumur_to_fahrenheit(reaumur: float, ndigits: int = 2) -> float:
     122.0
     >>> reaumur_to_fahrenheit("reaumur")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'reaumur'
     """
     return round((float(reaumur) * 2.25 + 32), ndigits)
@@ -354,7 +354,7 @@ def reaumur_to_celsius(reaumur: float, ndigits: int = 2) -> float:
     50.0
     >>> reaumur_to_celsius("reaumur")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'reaumur'
     """
     return round((float(reaumur) * 1.25), ndigits)
@@ -373,7 +373,7 @@ def reaumur_to_rankine(reaumur: float, ndigits: int = 2) -> float:
     581.67
     >>> reaumur_to_rankine("reaumur")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: could not convert string to float: 'reaumur'
     """
     return round((float(reaumur) * 2.25 + 32 + 459.67), ndigits)
diff --git a/data_structures/binary_tree/binary_search_tree.py b/data_structures/binary_tree/binary_search_tree.py
index fc60540a1..fc512944e 100644
--- a/data_structures/binary_tree/binary_search_tree.py
+++ b/data_structures/binary_tree/binary_search_tree.py
@@ -196,7 +196,7 @@ def binary_search_tree() -> None:
     1 4 7 6 3 13 14 10 8
     >>> BinarySearchTree().search(6)
     Traceback (most recent call last):
-    ...
+        ...
     IndexError: Warning: Tree is empty! please use another.
     """
     testlist = (8, 3, 6, 1, 10, 14, 13, 4, 7)
diff --git a/data_structures/binary_tree/binary_tree_mirror.py b/data_structures/binary_tree/binary_tree_mirror.py
index cdd56e35d..1ef950ad6 100644
--- a/data_structures/binary_tree/binary_tree_mirror.py
+++ b/data_structures/binary_tree/binary_tree_mirror.py
@@ -21,11 +21,11 @@ def binary_tree_mirror(binary_tree: dict, root: int = 1) -> dict:
     {1: [3, 2], 2: [5, 4], 3: [7, 6], 4: [11, 10]}
     >>> binary_tree_mirror({ 1: [2,3], 2: [4,5], 3: [6,7], 4: [10,11]}, 5)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: root 5 is not present in the binary_tree
     >>> binary_tree_mirror({}, 5)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: binary tree cannot be empty
     """
     if not binary_tree:
diff --git a/data_structures/binary_tree/number_of_possible_binary_trees.py b/data_structures/binary_tree/number_of_possible_binary_trees.py
index 1ad8f2ed4..684c518b1 100644
--- a/data_structures/binary_tree/number_of_possible_binary_trees.py
+++ b/data_structures/binary_tree/number_of_possible_binary_trees.py
@@ -67,7 +67,7 @@ def factorial(n: int) -> int:
     True
     >>> factorial(-5)  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: factorial() not defined for negative values
     """
     if n < 0:
diff --git a/data_structures/linked_list/doubly_linked_list.py b/data_structures/linked_list/doubly_linked_list.py
index 9e996ef0f..90b6b6eb2 100644
--- a/data_structures/linked_list/doubly_linked_list.py
+++ b/data_structures/linked_list/doubly_linked_list.py
@@ -64,11 +64,11 @@ class DoublyLinkedList:
         >>> linked_list = DoublyLinkedList()
         >>> linked_list.insert_at_nth(-1, 666)
         Traceback (most recent call last):
-        ....
+            ....
         IndexError: list index out of range
         >>> linked_list.insert_at_nth(1, 666)
         Traceback (most recent call last):
-        ....
+            ....
         IndexError: list index out of range
         >>> linked_list.insert_at_nth(0, 2)
         >>> linked_list.insert_at_nth(0, 1)
@@ -78,7 +78,7 @@ class DoublyLinkedList:
         '1->2->3->4'
         >>> linked_list.insert_at_nth(5, 5)
         Traceback (most recent call last):
-        ....
+            ....
         IndexError: list index out of range
         """
         if not 0 <= index <= len(self):
@@ -114,7 +114,7 @@ class DoublyLinkedList:
         >>> linked_list = DoublyLinkedList()
         >>> linked_list.delete_at_nth(0)
         Traceback (most recent call last):
-        ....
+            ....
         IndexError: list index out of range
         >>> for i in range(0, 5):
         ...     linked_list.insert_at_nth(i, i + 1)
@@ -128,7 +128,7 @@ class DoublyLinkedList:
         '2->4'
         >>> linked_list.delete_at_nth(2)
         Traceback (most recent call last):
-        ....
+            ....
         IndexError: list index out of range
         """
         if not 0 <= index <= len(self) - 1:
diff --git a/data_structures/linked_list/singly_linked_list.py b/data_structures/linked_list/singly_linked_list.py
index 89a05ae81..3e52c7e43 100644
--- a/data_structures/linked_list/singly_linked_list.py
+++ b/data_structures/linked_list/singly_linked_list.py
@@ -95,11 +95,11 @@ class LinkedList:
         True
         >>> linked_list[-10]
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: list index out of range.
         >>> linked_list[len(linked_list)]
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: list index out of range.
         """
         if not 0 <= index < len(self):
@@ -122,11 +122,11 @@ class LinkedList:
         -666
         >>> linked_list[-10] = 666
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: list index out of range.
         >>> linked_list[len(linked_list)] = 666
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: list index out of range.
         """
         if not 0 <= index < len(self):
@@ -233,7 +233,7 @@ class LinkedList:
         'third'
         >>> linked_list.delete_head()
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: List index out of range.
         """
         return self.delete_nth(0)
@@ -260,7 +260,7 @@ class LinkedList:
         'first'
         >>> linked_list.delete_tail()
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: List index out of range.
         """
         return self.delete_nth(len(self) - 1)
@@ -281,11 +281,11 @@ class LinkedList:
         first->third
         >>> linked_list.delete_nth(5) # this raises error
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: List index out of range.
         >>> linked_list.delete_nth(-1) # this also raises error
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: List index out of range.
         """
         if not 0 <= index <= len(self) - 1:  # test if index is valid
diff --git a/data_structures/queue/linked_queue.py b/data_structures/queue/linked_queue.py
index 3675da7db..3af97d28e 100644
--- a/data_structures/queue/linked_queue.py
+++ b/data_structures/queue/linked_queue.py
@@ -96,7 +96,7 @@ class LinkedQueue:
         >>> queue = LinkedQueue()
         >>> queue.get()
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: dequeue from empty queue
         >>> for i in range(1, 6):
         ...     queue.put(i)
@@ -116,7 +116,7 @@ class LinkedQueue:
         >>> queue = LinkedQueue()
         >>> queue.get()
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: dequeue from empty queue
         >>> queue = LinkedQueue()
         >>> for i in range(1, 6):
diff --git a/data_structures/queue/priority_queue_using_list.py b/data_structures/queue/priority_queue_using_list.py
index c5cf26433..f61b5e8e6 100644
--- a/data_structures/queue/priority_queue_using_list.py
+++ b/data_structures/queue/priority_queue_using_list.py
@@ -58,7 +58,7 @@ class FixedPriorityQueue:
     4
     >>> fpq.dequeue()
     Traceback (most recent call last):
-    ...
+        ...
     data_structures.queue.priority_queue_using_list.UnderFlowError: All queues are empty
     >>> print(fpq)
     Priority 0: []
diff --git a/data_structures/stacks/infix_to_postfix_conversion.py b/data_structures/stacks/infix_to_postfix_conversion.py
index b812d108e..901744309 100644
--- a/data_structures/stacks/infix_to_postfix_conversion.py
+++ b/data_structures/stacks/infix_to_postfix_conversion.py
@@ -21,7 +21,7 @@ def infix_to_postfix(expression_str: str) -> str:
     """
     >>> infix_to_postfix("(1*(2+3)+4))")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Mismatched parentheses
     >>> infix_to_postfix("")
     ''
diff --git a/data_structures/stacks/stack_with_singly_linked_list.py b/data_structures/stacks/stack_with_singly_linked_list.py
index 903ae39db..f5ce83b86 100644
--- a/data_structures/stacks/stack_with_singly_linked_list.py
+++ b/data_structures/stacks/stack_with_singly_linked_list.py
@@ -109,7 +109,7 @@ class LinkedStack(Generic[T]):
         >>> stack = LinkedStack()
         >>> stack.pop()
         Traceback (most recent call last):
-        ...
+            ...
         IndexError: pop from empty stack
         >>> stack.push("c")
         >>> stack.push("b")
diff --git a/dynamic_programming/longest_common_substring.py b/dynamic_programming/longest_common_substring.py
index 84a9f1860..e2f944a5e 100644
--- a/dynamic_programming/longest_common_substring.py
+++ b/dynamic_programming/longest_common_substring.py
@@ -32,7 +32,7 @@ def longest_common_substring(text1: str, text2: str) -> str:
     'Site:Geeks'
     >>> longest_common_substring(1, 1)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: longest_common_substring() takes two strings for inputs
     """
 
diff --git a/genetic_algorithm/basic_string.py b/genetic_algorithm/basic_string.py
index 3227adf53..5cf8d691b 100644
--- a/genetic_algorithm/basic_string.py
+++ b/genetic_algorithm/basic_string.py
@@ -32,17 +32,17 @@ def basic(target: str, genes: list[str], debug: bool = True) -> tuple[int, int,
     >>> genes.remove("e")
     >>> basic("test", genes)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: ['e'] is not in genes list, evolution cannot converge
     >>> genes.remove("s")
     >>> basic("test", genes)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: ['e', 's'] is not in genes list, evolution cannot converge
     >>> genes.remove("t")
     >>> basic("test", genes)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: ['e', 's', 't'] is not in genes list, evolution cannot converge
     """
 
diff --git a/linear_algebra/src/lib.py b/linear_algebra/src/lib.py
index b9791c860..079731487 100644
--- a/linear_algebra/src/lib.py
+++ b/linear_algebra/src/lib.py
@@ -168,7 +168,7 @@ class Vector:
         9.539392014169456
         >>> Vector([]).euclidean_length()
         Traceback (most recent call last):
-        ...
+            ...
         Exception: Vector is empty
         """
         if len(self.__components) == 0:
@@ -186,7 +186,7 @@ class Vector:
         85.40775111366095
         >>> Vector([3, 4, -1]).angle(Vector([2, -1]))
         Traceback (most recent call last):
-        ...
+            ...
         Exception: invalid operand!
         """
         num = self * other
diff --git a/machine_learning/similarity_search.py b/machine_learning/similarity_search.py
index ec1b9f9e3..2f5fc46c0 100644
--- a/machine_learning/similarity_search.py
+++ b/machine_learning/similarity_search.py
@@ -70,7 +70,7 @@ def similarity_search(
     >>> value_array = np.array([1])
     >>> similarity_search(dataset, value_array)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Wrong input data's dimensions... dataset : 2, value_array : 1
 
     2. If data's shapes are different.
@@ -80,7 +80,7 @@ def similarity_search(
     >>> value_array = np.array([[0, 0, 0], [0, 0, 1]])
     >>> similarity_search(dataset, value_array)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Wrong input data's shape... dataset : 2, value_array : 3
 
     3. If data types are different.
@@ -90,7 +90,7 @@ def similarity_search(
     >>> value_array = np.array([[0, 0], [0, 1]], dtype=np.int32)
     >>> similarity_search(dataset, value_array)  # doctest: +NORMALIZE_WHITESPACE
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: Input data have different datatype...
     dataset : float32, value_array : int32
     """
diff --git a/maths/bisection.py b/maths/bisection.py
index 93cc2247b..45f26d8d8 100644
--- a/maths/bisection.py
+++ b/maths/bisection.py
@@ -32,7 +32,7 @@ def bisection(a: float, b: float) -> float:
     3.158203125
     >>> bisection(2, 3)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Wrong space!
     """
     # Bolzano theory in order to find if there is a root between a and b
diff --git a/maths/catalan_number.py b/maths/catalan_number.py
index 4a1280a45..85607dc1e 100644
--- a/maths/catalan_number.py
+++ b/maths/catalan_number.py
@@ -18,15 +18,15 @@ def catalan(number: int) -> int:
     14
     >>> catalan(0)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Input value of [number=0] must be > 0
     >>> catalan(-1)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Input value of [number=-1] must be > 0
     >>> catalan(5.0)
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: Input value of [number=5.0] must be an integer
     """
 
diff --git a/maths/fibonacci.py b/maths/fibonacci.py
index 07bd6d2ec..e0da66ee5 100644
--- a/maths/fibonacci.py
+++ b/maths/fibonacci.py
@@ -47,7 +47,7 @@ def fib_iterative(n: int) -> list[int]:
     [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
     >>> fib_iterative(-1)
     Traceback (most recent call last):
-    ...
+        ...
     Exception: n is negative
     """
     if n < 0:
@@ -73,7 +73,7 @@ def fib_recursive(n: int) -> list[int]:
     [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
     >>> fib_iterative(-1)
     Traceback (most recent call last):
-    ...
+        ...
     Exception: n is negative
     """
 
@@ -105,7 +105,7 @@ def fib_memoization(n: int) -> list[int]:
     [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
     >>> fib_iterative(-1)
     Traceback (most recent call last):
-    ...
+        ...
     Exception: n is negative
     """
     if n < 0:
@@ -146,11 +146,11 @@ def fib_binet(n: int) -> list[int]:
     [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
     >>> fib_binet(-1)
     Traceback (most recent call last):
-    ...
+        ...
     Exception: n is negative
     >>> fib_binet(1475)
     Traceback (most recent call last):
-    ...
+        ...
     Exception: n is too large
     """
     if n < 0:
diff --git a/maths/maclaurin_series.py b/maths/maclaurin_series.py
index a2619d4e6..e55839bc1 100644
--- a/maths/maclaurin_series.py
+++ b/maths/maclaurin_series.py
@@ -26,19 +26,19 @@ def maclaurin_sin(theta: float, accuracy: int = 30) -> float:
     0.5440211108893703
     >>> maclaurin_sin("10")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_sin() requires either an int or float for theta
     >>> maclaurin_sin(10, -30)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_sin() requires a positive int for accuracy
     >>> maclaurin_sin(10, 30.5)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_sin() requires a positive int for accuracy
     >>> maclaurin_sin(10, "30")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_sin() requires a positive int for accuracy
     """
 
@@ -78,19 +78,19 @@ def maclaurin_cos(theta: float, accuracy: int = 30) -> float:
     -0.8390715290764521
     >>> maclaurin_cos("10")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_cos() requires either an int or float for theta
     >>> maclaurin_cos(10, -30)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_cos() requires a positive int for accuracy
     >>> maclaurin_cos(10, 30.5)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_cos() requires a positive int for accuracy
     >>> maclaurin_cos(10, "30")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: maclaurin_cos() requires a positive int for accuracy
     """
 
diff --git a/maths/proth_number.py b/maths/proth_number.py
index 6b1519024..ce911473a 100644
--- a/maths/proth_number.py
+++ b/maths/proth_number.py
@@ -16,15 +16,15 @@ def proth(number: int) -> int:
     25
     >>> proth(0)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Input value of [number=0] must be > 0
     >>> proth(-1)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Input value of [number=-1] must be > 0
     >>> proth(6.0)
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: Input value of [number=6.0] must be an integer
     """
 
diff --git a/maths/sylvester_sequence.py b/maths/sylvester_sequence.py
index 0cd99affe..114c9dd58 100644
--- a/maths/sylvester_sequence.py
+++ b/maths/sylvester_sequence.py
@@ -18,12 +18,12 @@ def sylvester(number: int) -> int:
 
     >>> sylvester(-1)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: The input value of [n=-1] has to be > 0
 
     >>> sylvester(8.0)
     Traceback (most recent call last):
-    ...
+        ...
     AssertionError: The input value of [n=8.0] is not an integer
     """
     assert isinstance(number, int), f"The input value of [n={number}] is not an integer"
diff --git a/maths/zellers_congruence.py b/maths/zellers_congruence.py
index 2d4a22a0a..624bbfe10 100644
--- a/maths/zellers_congruence.py
+++ b/maths/zellers_congruence.py
@@ -14,11 +14,11 @@ def zeller(date_input: str) -> str:
     Validate out of range month
     >>> zeller('13-31-2010')
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Month must be between 1 - 12
     >>> zeller('.2-31-2010')
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: invalid literal for int() with base 10: '.2'
 
     Validate out of range date:
diff --git a/neural_network/perceptron.py b/neural_network/perceptron.py
index f04c81424..487842067 100644
--- a/neural_network/perceptron.py
+++ b/neural_network/perceptron.py
@@ -29,15 +29,15 @@ class Perceptron:
 
         >>> p = Perceptron([], (0, 1, 2))
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: Sample data can not be empty
         >>> p = Perceptron(([0], 1, 2), [])
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: Target data can not be empty
         >>> p = Perceptron(([0], 1, 2), (0, 1))
         Traceback (most recent call last):
-        ...
+            ...
         ValueError: Sample data and Target data do not have matching lengths
         """
         self.sample = sample
diff --git a/project_euler/problem_004/sol1.py b/project_euler/problem_004/sol1.py
index db6133a1a..b1e229289 100644
--- a/project_euler/problem_004/sol1.py
+++ b/project_euler/problem_004/sol1.py
@@ -26,7 +26,7 @@ def solution(n: int = 998001) -> int:
     39893
     >>> solution(10000)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: That number is larger than our acceptable range.
     """
 
diff --git a/project_euler/problem_010/sol3.py b/project_euler/problem_010/sol3.py
index 72e2894df..60abbd571 100644
--- a/project_euler/problem_010/sol3.py
+++ b/project_euler/problem_010/sol3.py
@@ -30,15 +30,15 @@ def solution(n: int = 2000000) -> int:
     10
     >>> solution(7.1)  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: 'float' object cannot be interpreted as an integer
     >>> solution(-7)  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     IndexError: list assignment index out of range
     >>> solution("seven")  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: can only concatenate str (not "int") to str
     """
 
diff --git a/searches/interpolation_search.py b/searches/interpolation_search.py
index f4fa8e120..35e6bc506 100644
--- a/searches/interpolation_search.py
+++ b/searches/interpolation_search.py
@@ -101,7 +101,7 @@ def __assert_sorted(collection):
     True
     >>> __assert_sorted([10, -1, 5])
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Collection must be ascending sorted
     """
     if collection != sorted(collection):
diff --git a/sorts/bead_sort.py b/sorts/bead_sort.py
index d22367c52..e51173643 100644
--- a/sorts/bead_sort.py
+++ b/sorts/bead_sort.py
@@ -20,12 +20,12 @@ def bead_sort(sequence: list) -> list:
 
     >>> bead_sort([1, .9, 0.0, 0, -1, -.9])
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: Sequence must be list of non-negative integers
 
     >>> bead_sort("Hello world")
     Traceback (most recent call last):
-    ...
+        ...
     TypeError: Sequence must be list of non-negative integers
     """
     if any(not isinstance(x, int) or x < 0 for x in sequence):
diff --git a/sorts/msd_radix_sort.py b/sorts/msd_radix_sort.py
index 7430fc5a6..84460e47b 100644
--- a/sorts/msd_radix_sort.py
+++ b/sorts/msd_radix_sort.py
@@ -23,7 +23,7 @@ def msd_radix_sort(list_of_ints: list[int]) -> list[int]:
     [1, 45, 1209, 540402, 834598]
     >>> msd_radix_sort([-1, 34, 45])
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: All numbers must be positive
     """
     if not list_of_ints:
@@ -93,7 +93,7 @@ def msd_radix_sort_inplace(list_of_ints: list[int]):
     >>> lst = [-1, 34, 23, 4, -42]
     >>> msd_radix_sort_inplace(lst)
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: All numbers must be positive
     """
 
diff --git a/strings/barcode_validator.py b/strings/barcode_validator.py
index 2e1ea8703..e050cd337 100644
--- a/strings/barcode_validator.py
+++ b/strings/barcode_validator.py
@@ -47,7 +47,7 @@ def is_valid(barcode: int) -> bool:
     False
     >>> is_valid(dwefgiweuf)
     Traceback (most recent call last):
-    ...
+        ...
     NameError: name 'dwefgiweuf' is not defined
     """
     return len(str(barcode)) == 13 and get_check_digit(barcode) == barcode % 10
@@ -61,7 +61,7 @@ def get_barcode(barcode: str) -> int:
     8718452538119
     >>> get_barcode("dwefgiweuf")
     Traceback (most recent call last):
-    ...
+        ...
     ValueError: Barcode 'dwefgiweuf' has alphabetic characters.
     """
     if str(barcode).isalpha():
diff --git a/strings/join.py b/strings/join.py
index c17ddd144..739856c1a 100644
--- a/strings/join.py
+++ b/strings/join.py
@@ -15,7 +15,7 @@ def join(separator: str, separated: list[str]) -> str:
     'You are amazing!'
     >>> join("#", ["a", "b", "c", 1])
     Traceback (most recent call last):
-    ...
+        ...
     Exception: join() accepts only strings to be joined
     """
     joined = ""