Package: python3-frozenlist (1.4.0-1 and others)

[ Source: frozenlist  ]

struttura in stile lista che implementa collections.abc.MutableSequence

"frozenlist.FrozenList" è una struttura in stile lista che implementa collections.abc.MutableSequence. La lista è mutabile finché non si chiama "FrozenList.freeze", dopodiché le modifiche alla lista sollevano una eccezione "RuntimeError":

 >>> from frozenlist import FrozenList
 >>> fl = FrozenList([17, 42])
 >>> fl.append('spam')
 >>> fl.append('Vikings')
 >>> fl
 <FrozenList(frozen=False, [17, 42, 'spam', 'Vikings'])>
 >>> fl.freeze()
 >>> fl
 <FrozenList(frozen=True, [17, 42, 'spam', 'Vikings'])>
 >>> fl.frozen
 True
 >>> fl.append("Monty")
 Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "frozenlist/_frozenlist.pyx", line 97, in frozenlist._frozenlist.FrozenList.append
    self._check_frozen()
  File "frozenlist/_frozenlist.pyx", line 19, in frozenlist._frozenlist.FrozenList._check_frozen
    raise RuntimeError("Cannot modify frozen list.")
  RuntimeError: Cannot modify frozen list.

Si può anche calcolare l'hash di FrozenList, ma solo quando è congelata. Altrimenti viene sollevata un'eccezione "RuntimeError".

 >>> fl = FrozenList([17, 42, 'spam'])
 >>> hash(fl)
 Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "frozenlist/_frozenlist.pyx", line 111, in frozenlist._frozenlist.FrozenList.__hash__
    raise RuntimeError("Cannot hash unfrozen list.")
  RuntimeError: Cannot hash unfrozen list.
 >>> fl.freeze()
 >>> hash(fl)
 3713081631934410656
 >>> dictionary = {fl: 'Vikings'} # fl congelata può essere una chiave di dizionario
 >>> dictionary
 {<FrozenList(frozen=True, [1, 2])>: 'Vikings'}

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  dep: libc6 (>= 2.17) [arm64, ppc64el]

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  dep: libc6 (>= 2.27) [riscv64]

  dep: libc6 (>= 2.37) [sh4]

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Download python3-frozenlist

Download for all available architectures

Architecture	Version	Package Size	Installed Size	Files
alpha (unofficial port)	1.4.0-1+b1	53.1 kB	313.0 kB	[list of files]
amd64	1.4.0-1+b1	58.6 kB	237.0 kB	[list of files]
arm64	1.4.0-1+b1	52.5 kB	313.0 kB	[list of files]
armel	1.4.0-1+b1	49.0 kB	207.0 kB	[list of files]
armhf	1.4.0-1+b1	51.0 kB	167.0 kB	[list of files]
hppa (unofficial port)	1.4.0-1+b1	53.6 kB	233.0 kB	[list of files]
i386	1.4.0-1+b1	59.8 kB	239.0 kB	[list of files]
ia64 (unofficial port)	1.4.0-1+b1	68.3 kB	410.0 kB	[list of files]
m68k (unofficial port)	1.4.0-1+b1	50.1 kB	213.0 kB	[list of files]
mips64el	1.4.0-1+b1	48.6 kB	319.0 kB	[list of files]
ppc64 (unofficial port)	1.4.0-1+b1	57.7 kB	317.0 kB	[list of files]
ppc64el	1.4.0-1+b1	58.5 kB	313.0 kB	[list of files]
riscv64	1.4.0-1+b1	59.0 kB	205.0 kB	[list of files]
s390x	1.4.0-1+b1	58.5 kB	245.0 kB	[list of files]
sh4 (unofficial port)	1.4.0-1+b1	62.0 kB	307.0 kB	[list of files]
sparc64 (unofficial port)	1.4.0-1+b1	47.2 kB	2,111.0 kB	[list of files]
x32 (unofficial port)	1.4.0-1+b1	58.6 kB	225.0 kB	[list of files]