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53 lines
1.0 KiB
53 lines
1.0 KiB
# case where generator doesn't intercept the thrown/injected exception
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def gen():
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yield 123
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yield 456
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g = gen()
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print(next(g))
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try:
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g.throw(KeyError)
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except KeyError:
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print('got KeyError from downstream!')
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# case where a thrown exception is caught and stops the generator
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def gen():
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try:
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yield 1
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yield 2
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except:
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pass
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g = gen()
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print(next(g))
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try:
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g.throw(ValueError)
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except StopIteration:
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print('got StopIteration')
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# generator ignores a thrown GeneratorExit (this is allowed)
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def gen():
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try:
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yield 123
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except GeneratorExit as e:
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print('GeneratorExit', repr(e.args))
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yield 456
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# thrown a class
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g = gen()
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print(next(g))
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print(g.throw(GeneratorExit))
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# thrown an instance
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g = gen()
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print(next(g))
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print(g.throw(GeneratorExit()))
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# thrown an instance with None as second arg
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g = gen()
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print(next(g))
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print(g.throw(GeneratorExit(), None))
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# thrown a class and instance
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g = gen()
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print(next(g))
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print(g.throw(GeneratorExit, GeneratorExit(123)))
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