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Report error for abstract method in non-abstract class. GitOrigin-RevId: 824d45a310b95ada628d6e607ae1ced6e351d849
57 lines
1.1 KiB
HTML
57 lines
1.1 KiB
HTML
<html>
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<body>
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<p>Reports invalid definition and usages of abstract classes.</p>
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<p><b>Example:</b></p>
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<pre><code>
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from abc import abstractmethod, ABC
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class Figure(ABC):
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@abstractmethod
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def do_figure(self):
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pass
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class Triangle(Figure): # Not all abstract methods are defined in 'Triangle' class
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def do_triangle(self):
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pass
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Triangle() # Cannot instantiate abstract class 'Triangle'
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</code></pre>
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<p>When the quick-fix is applied, the IDE implements an abstract method for the <code>Triangle</code> class:</p>
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<pre><code>
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from abc import abstractmethod, ABC
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class Figure(ABC):
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@abstractmethod
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def do_figure(self):
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pass
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class Triangle(Figure):
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def do_figure(self):
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pass
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def do_triangle(self):
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pass
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Triangle()
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</code></pre>
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It also warns you if <code>abc.abstractmethod</code> is used in a class whose metaclass is not <code>abc.ABCMeta</code>:
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<code><pre>
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from abc import abstractmethod
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class MyClass:
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@abstractmethod # 'MyClass' is not abstract
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def foo(self):
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...
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</code></pre>
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</body>
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</html> |