Update fletcher16.py

hashes/fletcher16.py

@@ -1,16 +1,16 @@
-"""
-The Fletcher checksum is an algorithm for computing a position-dependent checksum
-devised by John G. Fletcher (1934–2012) at Lawrence Livermore Labs in the late 1970s.[1]
-The objective of the Fletcher checksum was to provide error-detection properties approaching
-those of a cyclic redundancy check but with the lower computational effort associated with
-summation techniques.
+'''
+The Fletcher checksum is an algorithm for computing a position-dependent
+checksum devised by John G. Fletcher (1934–2012) at Lawrence Livermore Labs
+in the late 1970s.[1] The objective of the Fletcher checksum was to
+provide error-detection properties approaching those of a cyclic
+redundancy check but with the lower computational effort associated
+with summation techniques.
 
 Source: https://en.wikipedia.org/wiki/Fletcher%27s_checksum
-"""
-
+'''
 
 def fletcher16(text: str) -> int:
-    """
+    '''
     Loops through every character in the data and adds to two sums
 
 
@@ -21,17 +21,16 @@ def fletcher16(text: str) -> int:
     28347
     >>> fletcher16('The quick brown fox jumps over the lazy dog.')
     5655
-    """
+    '''
     data = bytes(text, "ascii")
     sum1 = 0
     sum2 = 0
     for character in data:
-        sum1 = (sum1 + character) % 255
-        sum2 = (sum1 + sum2) % 255
+        sum1 = (sum1+character)%255
+        sum2 = (sum1+sum2)%255
     return (sum2 << 8) | sum1
 
 
 if __name__ == "__main__":
     import doctest
-
     doctest.testmod()