adii1823
18 lines
526 B
Python
18 lines
526 B
Python
# generator.expressions.py
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# This is not a valid Python module - Don't run it.
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>>> cubes = [k**3 for k in range(10)] # regular list
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>>> cubes
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[0, 1, 8, 27, 64, 125, 216, 343, 512, 729]
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>>> type(cubes)
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<class 'list'>
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>>> cubes_gen = (k**3 for k in range(10)) # create as generator
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>>> cubes_gen
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<generator object <genexpr> at 0x103fb5a98>
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>>> type(cubes_gen)
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<class 'generator'>
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>>> list(cubes_gen) # this will exhaust the generator
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[0, 1, 8, 27, 64, 125, 216, 343, 512, 729]
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>>> list(cubes_gen) # nothing more to give
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[]
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