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  1. import timeit
  2.  
  3.  
  4. def toByteHexArray(n):
  5.     string = hex(n)[2:]
  6.     if len(string) % 2 == 1:
  7.         string = "0" + string
  8.     pairs = zip(string[::2], string[1::2])
  9.     return "[0x" + ",0x".join((a + b for a, b in pairs)) + "]"
  10.  
  11.  
  12. def split_bytes(n, as_string=False):
  13.     result = []
  14.     keep_going = True
  15.     while keep_going:
  16.         if n >> 8 == 0:
  17.             keep_going = False
  18.         result.insert(0, hex(n & 0xFF))
  19.         n = n >> 8
  20.  
  21.     if as_string:
  22.         return f'[{",".join(result)}]'
  23.  
  24.     return result
  25.  
  26.  
  27. if __name__ == '__main__':
  28.     t1 = timeit.timeit("toByteHexArray(0x3E75C28F)", 'from __main__ import toByteHexArray')
  29.     t2 = timeit.timeit("split_bytes(0x3E75C28F)", 'from __main__ import split_bytes')
  30.     t3 = timeit.timeit("split_bytes(0x3E75C28F, True)", 'from __main__ import split_bytes')
  31.     print(t1)
  32.     print(t2)
  33.     print(t3)
  34.  
Success #stdin #stdout 4.79s 9720KB
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1.9186392445117235
1.197393735870719
1.6646145395934582
https://ideone.com/gy2WCm
language:
Python 3 (python  3.12)
created:
4 years ago
visibility:
public

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