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  1. class Logger(object):
  2. 	def __init__(self, colour):
  3. 		self.colour = colour
  4.  
  5. 	def log(self, msg):
  6. 		print(self.colour + ": " + msg)
  7.  
  8.  
  9. def logger_choice(colour):
  10. 	def col_decor(f):
  11. 		def f_decor(*args, **kwargs):
  12. 			global dprint
  13. 			prev_dprint = dprint
  14. 			dprint = loggers[colour].log
  15. 			f(*args, **kwargs)
  16. 			dprint = prev_dprint
  17. 		return f_decor
  18. 	return col_decor
  19.  
  20. def f():
  21. 	dprint("this should be black")
  22.  
  23. @logger_choice(colour='yellow')
  24. def fu(x):
  25. 	dprint("this should be yellow, and 5 = %d" % x)
  26.  
  27. @logger_choice(colour='red')
  28. def fun():
  29. 	dprint("this should be red")
  30.  
  31.  
  32. loggers = {'black': Logger("black"), 'yellow': Logger("yellow"), 'red': Logger("red")}
  33. dprint = loggers['black'].log
  34.  
  35. f()
  36. fu(5)
  37. fun()
Success #stdin #stdout 0.01s 9992KB
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stdin
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Standard input is empty
stdout
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black: this should be black
yellow: this should be yellow, and 5 = 5
red: this should be red
https://ideone.com/LSZQkE
language:
Python 3 (python  3.9.5)
created:
8 years ago
visibility:
secret

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