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  1. #!/usr/bin/env python3
  2.  
  3. import timeit
  4.  
  5. def f():
  6.     buf = b""
  7.  
  8.     for i in range(102400):
  9.         buf += b'c'
  10.  
  11.     return buf
  12.  
  13. def g():
  14.     buf = bytearray()
  15.  
  16.     for i in range(102400):
  17.         buf.append(b'c'[0])
  18.  
  19.     return bytes(buf)
  20.  
  21. if __name__ == "__main__":
  22.     print(timeit.repeat(f, number=2))
  23.     print(timeit.repeat(g, number=2))
Success #stdin #stdout 4s 10296KB
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Standard input is empty
stdout
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[1.268664836883545, 1.27207612991333, 1.2689130306243896]
[0.03531384468078613, 0.03574490547180176, 0.03640103340148926]
https://ideone.com/0NKcAt
language:
Python 3 (python  3.9.5)
created:
10 years ago
visibility:
public

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