[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

bit_manipulation/is_power_of_four.py

@@ -8,8 +8,9 @@
 
 """
 
+
 def is_power_of_four(N: int) -> bool:
-  """
+    """
     Returns whether a number is a power of 4 or not
     >>> is_power_of_four(8)
     False
@@ -25,25 +26,20 @@ def is_power_of_four(N: int) -> bool:
     Traceback (most recent call last):
         ...
     TypeError: unsupported operand type(s) for &: 'float' and 'float'
-  """
-
-  #For non-positive numbers
-  if N <= 0:
-    raise ValueError("number must be positive")
-
-  #If number is a power of 2 and ends with 4 or 6
-  if (N & (N-1) == 0) and (N%10 == 6 or N%10 == 4):
-    return True
-  else:
-    return False
-
+    """
 
-if __name__ == "__main__":
-  import doctest
-
-  doctest.testmod()
+    # For non-positive numbers
+    if N <= 0:
+        raise ValueError("number must be positive")
 
+    # If number is a power of 2 and ends with 4 or 6
+    if (N & (N - 1) == 0) and (N % 10 == 6 or N % 10 == 4):
+        return True
+    else:
+        return False
 
 
+if __name__ == "__main__":
+    import doctest
 
-
+    doctest.testmod()