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annotate python/example/classes.py @ 807:26786fae0703

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this relies on a requirement that is not part of my (2.7.12) stdlib; i almost deleted it. instead, i will keep for fun and note the requirement for further research
author Jeff Hammel <k0scist@gmail.com>
date Fri, 28 Oct 2016 17:09:04 -0700
parents 870af8d51552
children
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1 #!/usr/bin/env python
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2
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3 """
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4 illustrate how classes work
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5 """
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6
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7 class A:
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8 pass
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9
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10 tests = ["issubclass(A(), A)",
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11 "issubclass(A, A)"]
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12
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13 if __name__ == '__main__':
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14 for test in tests:
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15 print ("? {}".format(test))
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16 try:
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17 print (eval(test))
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18 except Exception as e:
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19 print ('{}'.format(repr(e)))