fork download
copy 
  1. # A stopwatch class.
  2.  
  3. from datetime import datetime
  4. from time import perf_counter as _tic
  5.  
  6. class Stopwatch:
  7.     def __init__(self):
  8.         self.reset()
  9.  
  10.     def reset(self):
  11.         self.toc = 0
  12.         self.run = False
  13.  
  14.     def start(self):
  15.         assert not self.run
  16.         self.run = True
  17.         self.toc = self.elapsed()
  18.  
  19.     def stop(self):
  20.         assert self.run
  21.         self.toc = self.elapsed()
  22.         self.run = False
  23.  
  24.     def elapsed(self):
  25.         return _tic() - self.toc if self.run else self.toc
  26.  
  27.     def __str__(self):
  28.         d = datetime.fromtimestamp(self.elapsed()).time()
  29.         f = int(d.microsecond/1E+6*100)
  30.         return '{:02d}:{:02d}:{:02d}.{:02d}'.format(d.hour,d.minute,d.second,f)
  31.  
  32. # .
  33.  
  34. from time import sleep
  35.  
  36. sw = Stopwatch()
  37. print(sw) # = 00.00
  38. sw.start()
  39. print(sw) # ~ 00.00
  40. sleep(0.5)
  41. print(sw) # ~ 00.50
  42.  
  43. sw.stop()
  44. sleep(0.5)
  45. print(sw) # ~ 00.50
  46. sw.start()
  47. sleep(0.5)
  48. print(sw) # ~ 01.00
  49.  
  50. sw.reset()
  51. print(sw) # = 00.00
  52. sw.start()
  53. sleep(1)
  54. print(sw) # ~ 01.00
Success #stdin #stdout 0.03s 9988KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
00:00:00.00
00:00:00.00
00:00:00.50
00:00:00.50
00:00:01.00
00:00:00.00
00:00:01.00
https://ideone.com/VsT9nb
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!