2014-04-13 08:17:04 +01:00
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try:
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2017-02-15 15:11:16 +00:00
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try:
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from ucollections import namedtuple
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2018-02-03 12:50:00 +00:00
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except ImportError:
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from collections import namedtuple
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2014-04-13 08:17:04 +01:00
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except ImportError:
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2017-02-15 15:11:16 +00:00
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print("SKIP")
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2017-06-10 18:03:01 +01:00
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raise SystemExit
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2014-02-27 20:22:04 +00:00
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2014-12-20 15:37:40 +00:00
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T = namedtuple("Tup", ["foo", "bar"])
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2014-02-27 20:22:04 +00:00
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# CPython prints fully qualified name, what we don't bother to do so far
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#print(T)
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2014-12-20 15:38:40 +00:00
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for t in T(1, 2), T(bar=1, foo=2):
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print(t)
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print(t[0], t[1])
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print(t.foo, t.bar)
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2014-02-27 20:22:04 +00:00
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2014-12-20 15:38:40 +00:00
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print(len(t))
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print(bool(t))
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print(t + t)
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print(t * 3)
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2014-02-27 20:49:47 +00:00
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2014-12-20 15:38:40 +00:00
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print([f for f in t])
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2014-05-10 18:15:49 +01:00
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2014-12-20 15:38:40 +00:00
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print(isinstance(t, tuple))
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2014-02-27 20:22:04 +00:00
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2017-06-29 08:49:10 +01:00
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# Create using positional and keyword args
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print(T(3, bar=4))
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2014-02-27 20:22:04 +00:00
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try:
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t[0] = 200
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except TypeError:
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print("TypeError")
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try:
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t.bar = 200
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except AttributeError:
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2014-12-20 15:37:40 +00:00
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print("AttributeError")
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2014-02-27 20:22:04 +00:00
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try:
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t = T(1)
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except TypeError:
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print("TypeError")
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try:
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t = T(1, 2, 3)
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except TypeError:
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print("TypeError")
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2014-12-20 15:38:40 +00:00
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try:
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t = T(foo=1)
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except TypeError:
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print("TypeError")
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try:
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t = T(1, foo=1)
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except TypeError:
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print("TypeError")
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2015-04-05 00:03:43 +01:00
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# enough args, but kw is wrong
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try:
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t = T(1, baz=3)
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except TypeError:
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print("TypeError")
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# bad argument for member spec
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try:
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namedtuple('T', 1)
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except TypeError:
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print("TypeError")
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2014-12-20 15:37:40 +00:00
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# Try single string
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2015-04-05 00:03:43 +01:00
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T3 = namedtuple("TupComma", "foo bar")
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t = T3(1, 2)
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print(t.foo, t.bar)
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2014-12-20 15:37:40 +00:00
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2016-05-22 18:28:04 +01:00
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# Try tuple
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T4 = namedtuple("TupTuple", ("foo", "bar"))
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t = T4(1, 2)
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print(t.foo, t.bar)
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2017-05-29 08:08:14 +01:00
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# Try single string with comma field separator
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2014-12-20 15:37:40 +00:00
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# Not implemented so far
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#T2 = namedtuple("TupComma", "foo,bar")
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#t = T2(1, 2)
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