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Python main with options

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Snippet to show how works optparse module to add optoins when it is called by command line

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  1. #!/usr/bin/python
  2. #-*- coding:utf-8 -*-
  3.  
  4. from optparse import OptionParser
  5.  
  6. class Options:
  7.  
  8. 	def __init__(self, args):
  9. 		self.opt_parser = OptionParser()
  10. 		# this option create a boolean variable, that default is False
  11. 		# and if you call with -m param it will be True
  12. 		self.opt_parser.add_option( 	"-m", 
  13. 						"--mouse_visible",
  14. 						dest="mouse_visible",
  15. 						action="store_true",
  16. 						default=False
  17. 					)
  18. 		# option that create a integer variable, defaultsv value is 
  19. 		# 0 and when is passed it store the option value:
  20. 		#    my_command -v 32
  21. 		# that stores 32
  22. 		self.opt_parser.add_option( 	"-v", 
  23. 						"--necesary_value",
  24. 						dest="necesary_value",
  25. 						action="store",
  26. 						type="int",
  27. 						default=0
  28. 					 )
  29. 		# parse args in array passed as param in __init__ method
  30. 		(self.options, args) = self.opt_parser.parse_args(args)
  31.  
  32. 	def get_mouse_visible(self):
  33. 	''' '''
  34. 		return self.options.mouse_visible
  35.  
  36. 	def get_necesary_value(self):
  37.         ''' '''
  38. 		return self.options.necesary_value
  39.  
  40.  
  41. if __name__ == "__main__":
  42. 	# options passed by commnand are inicializated
  43. 	opt = Options (sys.argv)
  44. 	print "Mouse is visible? %s" % opt.get_mouse_visible()
  45. 	print "Value needed: %s" %opt.get_necesary_value()

URL: python_parser_options

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