kopia lustrzana https://github.com/micropython/micropython
44 wiersze
802 B
Python
44 wiersze
802 B
Python
try:
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from collections import deque
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except ImportError:
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print("SKIP")
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raise SystemExit
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# Initial sequence is supported
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d = deque([1, 2, 3], 10)
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# iteration over sequence
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for x in d:
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print(x)
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# Iterables larger than maxlen have the beginnings removed, also tests
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# iteration through conversion to list
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d = deque([1, 2, 3, 4, 5], 3)
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print(list(d))
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# Empty iterables are also supported
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deque([], 10)
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# Extending deques with iterables
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d.extend([6, 7])
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print(list(d))
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# Accessing queue elements via index
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d = deque((0, 1, 2, 3), 5)
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print(d[0], d[1], d[-1])
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# Writing queue elements via index
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d[3] = 5
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print(d[3])
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# Accessing indices out of bounds raises IndexError
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try:
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d[4]
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except IndexError:
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print("IndexError")
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try:
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d[4] = 0
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except IndexError:
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print("IndexError")
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