examples/python/2.4.py at develop · threaderic/examples · GitHub

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#!/usr/bin/env python2.4

importsubprocess
importstring
frompassedimportpassed

# https://docs.python.org/3.10/whatsnew/2.4.html#pep-218-built-in-set-objects

assert1inset([1, 2])

a_str=set('ab')
assert'b'ina_str
a_str.add('c')
assert'c'ina_str
a_str.update('d')
assert'd'ina_str
a_str.remove('a')
assert'a'notina_str


# https://docs.python.org/3.10/whatsnew/2.4.html#pep-289-generator-expressions

generator_expression= (cforcin'ef'ifc>'e')

forcingenerator_expression:
a_str.add(c)

assert'e'notina_str
assert'f'ina_str


# https://docs.python.org/3.10/whatsnew/2.4.html#pep-292-simpler-string-substitutions

a_str=string.Template('var=$var')
asserta_str.substitute({'var': 1}) =='var=1'


# https://docs.python.org/3.10/whatsnew/2.4.html#pep-318-decorators-for-functions-and-methods

defdecoration(func):
defwrapper(arg):
return'decorated'+func(arg)
wrapper.attr='decorated'
returnwrapper


@decoration
defdecorated(arg):
returnarg


assertdecorated.attr
assertdecorated('1') =='decorated1'

# https://docs.python.org/3.10/whatsnew/2.4.html#pep-322-reverse-iteration

assertlist(reversed(xrange(1, 4))) == [3, 2, 1]

# https://docs.python.org/3.10/whatsnew/2.4.html#pep-324-new-subprocess-module


passed()