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Copy pathdecorator_basic.py
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54 lines (39 loc) · 730 Bytes
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# _*_ coding:utf-8 _*_
"""
python @ usage example
"""
def hello(fn):
def wrapper():
print "hello, %s" % fn.__name__
fn()
print 'bye, %s' % fn.__name__
return wrapper
def do_nothing(fn):
def wrapper():
print 'do not exe fn'
return wrapper
@hello
def foo():
print 'I am foo'
# hello, foo
# I am foo
# bye, foo
@do_nothing
def foo_nothing():
print 'I am foo_nothing'
# do not exe fn
@do_nothing
@hello
def foo_nested():
print 'I am foo_nested'
# do not exe fn
@hello
@do_nothing
def foo_nested_v2():
print 'I am foo_nested_v2'
if __name__ == '__main__':
# foo()
# foo_nothing()
# foo_nested()
foo_nested_v2()
pass