Присвоить логическое значение класса в Python ⇐ Python
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Присвоить логическое значение класса в Python
If statements in Python allow you to do something like:
if not x: print "X is false." This works if you're using an empty list, an empty dictionary, None, 0, etc, but what if you have your own custom class? Can you assign a false value for that class so that in the same style of conditional, it will return false?
Источник: https://stackoverflow.com/questions/978 ... -in-python
If statements in Python allow you to do something like:
if not x: print "X is false." This works if you're using an empty list, an empty dictionary, None, 0, etc, but what if you have your own custom class? Can you assign a false value for that class so that in the same style of conditional, it will return false?
Источник: https://stackoverflow.com/questions/978 ... -in-python
