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# This class provides the functionality we want. You only need to look at

# this if you want to know how this works. It only needs to be defined

# once, no need to muck around with its internals.

class switch(object):

def __init__(self, value):

self.value = value

self.fall = False

def __iter__(self):

"""Return the match method once, then stop"""

yield self.match

raise StopIteration

def match(self, *args):

"""Indicate whether or not to enter a case suite"""

if self.fall or not args:

return True

elif self.value in args: # changed for v1.5, see below

self.fall = True

return True

else:

return False

if __name__ == "__main__":

action = "check"

for case in switch(action):

if case('check'):

print('-------------Now doing in action: {0}'.format(action))

break

if case('update'):

print('-------------Now doing in action: {0}'.format(action))

break

if case('deploy'):

print('-------------Now doing in action: {0}'.format(action))

break

if case():

print('-------------Unsupport action, check your action: {0}'.format(action))

# No need to break here, it'll stop anyway