Update roman_numerals.py

Author: lighting9999

conversions/roman_numerals.py

@@ -1,47 +1,23 @@
 ROMAN = [
-(1000000, "M_"), (900000, "C_M_"), (500000, "D_"), (400000, "C_D_"),
+    (1000000, "M_"), (900000, "C_M_"), (500000, "D_"), (400000, "C_D_"),
     (100000, "C_"), (90000, "X_C_"), (50000, "L_"), (40000, "X_L_"),
     (10000, "X_"), (9000, "I_X_"), (5000, "V_"), (4000, "I_V_"),
     (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):
-    """
-    Convert a Roman numeral to an integer, supporting Vinculum notation
-    (underscore _ represents 1000 times).
-
-    LeetCode No. 13 Roman to Integer:
-    Given a Roman numeral, convert it to an integer.
-    Input is guaranteed to be within the range from 1 to 3999.
-
-    Reference: https://en.wikipedia.org/wiki/Roman_numerals
-    >>> tests = {"III": 3, "CLIV": 154, "MIX": 1009, "MMD": 2500,
-    ...          "MMMCMXCIX": 3999, "I_V_": 4000, "X_": 10000, "M_": 1000000}
-    >>> all(roman_to_int(key) == value for key, value in tests.items())
-    True
-    """
     vals = {roman: arabic for arabic, roman in ROMAN}
     i, total = 0, 0
     while i < len(roman):
-    if i + 1 < len(roman) and roman[i + 1] == "_":
-        total += vals[roman[i] + "_"]
-        i += 2
-    else:
-        total += vals[roman[i]]
-        i += 1
+        if i + 1 < len(roman) and roman[i + 1] == "_":
+            total += vals[roman[i] + "_"]
+            i += 2
+        else:
+            total += vals[roman[i]]
+            i += 1
+    return total
 def int_to_roman(number):
-    """
-    Convert an integer to a Roman numeral, supporting Vinculum notation
-    (underscore _ represents 1000 times).
-
-    Given an integer, convert it to a Roman numeral.
-
-    Reference: https://en.wikipedia.org/wiki/Roman_numerals
-    >>> tests = {3: "III", 154: "CLIV", 1009: "MIX", 2500: "MMD", 3999: "MMMCMXCIX"}
-    >>> all(int_to_roman(value) == key for key, value in tests.items())
-    True
-    """
     if not isinstance(number, int) or number <= 0:
         raise ValueError("Input must be a positive integer greater than 0")
 
@@ -52,7 +28,7 @@ def int_to_roman(number):
         if number == 0:
             break
     return "".join(result)
-
+    
 if __name__ == "__main__":
     import doctest
     doctest.testmod()