refactor: Move constants outside of variable scope (#7262)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

conversions/binary_to_hexadecimal.py

@@ -1,3 +1,23 @@
+BITS_TO_HEX = {
+    "0000": "0",
+    "0001": "1",
+    "0010": "2",
+    "0011": "3",
+    "0100": "4",
+    "0101": "5",
+    "0110": "6",
+    "0111": "7",
+    "1000": "8",
+    "1001": "9",
+    "1010": "a",
+    "1011": "b",
+    "1100": "c",
+    "1101": "d",
+    "1110": "e",
+    "1111": "f",
+}
+
+
 def bin_to_hexadecimal(binary_str: str) -> str:
     """
     Converting a binary string into hexadecimal using Grouping Method
@@ -17,25 +37,6 @@ def bin_to_hexadecimal(binary_str: str) -> str:
     ...
     ValueError: Empty string was passed to the function
     """
-    BITS_TO_HEX = {  # noqa: N806
-        "0000": "0",
-        "0001": "1",
-        "0010": "2",
-        "0011": "3",
-        "0100": "4",
-        "0101": "5",
-        "0110": "6",
-        "0111": "7",
-        "1000": "8",
-        "1001": "9",
-        "1010": "a",
-        "1011": "b",
-        "1100": "c",
-        "1101": "d",
-        "1110": "e",
-        "1111": "f",
-    }
-
     # Sanitising parameter
     binary_str = str(binary_str).strip()
 

conversions/decimal_to_any.py

@@ -1,5 +1,9 @@
 """Convert a positive Decimal Number to Any Other Representation"""
 
+from string import ascii_uppercase
+
+ALPHABET_VALUES = {str(ord(c) - 55): c for c in ascii_uppercase}
+
 
 def decimal_to_any(num: int, base: int) -> str:
     """
@@ -65,13 +69,6 @@ def decimal_to_any(num: int, base: int) -> str:
         raise ValueError("base must be >= 2")
     if base > 36:
         raise ValueError("base must be <= 36")
-    # fmt: off
-    ALPHABET_VALUES = {'10': 'A', '11': 'B', '12': 'C', '13': 'D', '14': 'E', '15': 'F',  # noqa: N806, E501
-                       '16': 'G', '17': 'H', '18': 'I', '19': 'J', '20': 'K', '21': 'L',
-                       '22': 'M', '23': 'N', '24': 'O', '25': 'P', '26': 'Q', '27': 'R',
-                       '28': 'S', '29': 'T', '30': 'U', '31': 'V', '32': 'W', '33': 'X',
-                       '34': 'Y', '35': 'Z'}
-    # fmt: on
     new_value = ""
     mod = 0
     div = 0

conversions/roman_numerals.py

@@ -1,3 +1,20 @@
+ROMAN = [
+    (1000, "M"),
+    (900, "CM"),
+    (500, "D"),
+    (400, "CD"),
+    (100, "C"),
+    (90, "XC"),
+    (50, "L"),
+    (40, "XL"),
+    (10, "X"),
+    (9, "IX"),
+    (5, "V"),
+    (4, "IV"),
+    (1, "I"),
+]
+
+
 def roman_to_int(roman: str) -> int:
     """
     LeetCode No. 13 Roman to Integer
@@ -29,21 +46,6 @@ def int_to_roman(number: int) -> str:
     >>> all(int_to_roman(value) == key for key, value in tests.items())
     True
     """
-    ROMAN = [  # noqa: N806
-        (1000, "M"),
-        (900, "CM"),
-        (500, "D"),
-        (400, "CD"),
-        (100, "C"),
-        (90, "XC"),
-        (50, "L"),
-        (40, "XL"),
-        (10, "X"),
-        (9, "IX"),
-        (5, "V"),
-        (4, "IV"),
-        (1, "I"),
-    ]
     result = []
     for (arabic, roman) in ROMAN:
         (factor, number) = divmod(number, arabic)