61 lines
1.4 KiB
Python
61 lines
1.4 KiB
Python
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# unpack sequences
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a, = 1, ; print(a)
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a, b = 2, 3 ; print(a, b)
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a, b = range(2); print(a, b)
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# with star
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*a, = () ; print(a)
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*a, = 4, ; print(a)
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*a, = 5, 6 ; print(a)
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*a, b = 7, ; print(a, b)
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*a, b = 8, 9 ; print(a, b)
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*a, b = 10, 11, 12 ; print(a, b)
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a, *b = 13, ; print(a, b)
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a, *b = 14, 15 ; print(a, b)
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a, *b = 16, 17, 18 ; print(a, b)
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a, *b, c = 19, 20 ; print(a, b)
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a, *b, c = 21, 22, 23 ; print(a, b)
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a, *b, c = 24, 25, 26, 27 ; print(a, b)
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a = [28, 29]
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*b, = a
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print(a, b, a == b)
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try:
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a, *b, c = (30,)
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except ValueError:
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print("ValueError")
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# with star and generic iterator
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*a, = range(5) ; print(a)
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*a, b = range(5) ; print(a, b)
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*a, b, c = range(5) ; print(a, b, c)
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a, *b = range(5) ; print(a, b)
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a, *b, c = range(5) ; print(a, b, c)
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a, *b, c, d = range(5) ; print(a, b, c, d)
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a, b, *c = range(5) ; print(a, b, c)
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a, b, *c, d = range(5) ; print(a, b, c, d)
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a, b, *c, d, e = range(5) ; print(a, b, c, d, e)
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*a, = [x * 2 for x in [1, 2, 3, 4]] ; print(a)
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*a, b = [x * 2 for x in [1, 2, 3, 4]] ; print(a, b)
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a, *b = [x * 2 for x in [1, 2, 3, 4]] ; print(a, b)
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a, *b, c = [x * 2 for x in [1, 2, 3, 4]]; print(a, b, c)
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try:
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a, *b, c = range(0)
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except ValueError:
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print("ValueError")
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try:
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a, *b, c = range(1)
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except ValueError:
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print("ValueError")
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