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venv/lib/python3.12/site-packages/bitarray/__init__.py

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+# Copyright (c) 2008 - 2025, Ilan Schnell; All Rights Reserved
+"""
+This package defines an object type which can efficiently represent
+a bitarray.  Bitarrays are sequence types and behave very much like lists.
+
+Please find a description of this package at:
+
+    https://github.com/ilanschnell/bitarray
+
+Author: Ilan Schnell
+"""
+from collections import namedtuple
+
+from bitarray._bitarray import (
+    bitarray, decodetree, bits2bytes, _bitarray_reconstructor,
+    get_default_endian, _sysinfo, BITARRAY_VERSION as __version__
+)
+
+__all__ = ['bitarray', 'frozenbitarray', 'decodetree', 'bits2bytes']
+
+BufferInfo = namedtuple('BufferInfo',
+                        ['address', 'nbytes', 'endian', 'padbits',
+                         'alloc', 'readonly', 'imported', 'exports'])
+
+class frozenbitarray(bitarray):
+    """frozenbitarray(initializer=0, /, endian='big', buffer=None) -> \
+frozenbitarray
+
+Return a `frozenbitarray` object.  Initialized the same way a `bitarray`
+object is initialized.  A `frozenbitarray` is immutable and hashable,
+and may therefore be used as a dictionary key.
+"""
+    def __init__(self, *args, **kwargs):
+        self._freeze()
+
+    def __repr__(self):
+        return 'frozen' + bitarray.__repr__(self)
+
+    def __hash__(self):
+        "Return hash(self)."
+        # ensure hash is independent of endianness
+        a = bitarray(self, 'big')
+        return hash((len(a), a.tobytes()))
+
+    # Technically the code below is not necessary, as all these methods will
+    # raise a TypeError on read-only memory.  However, with a different error
+    # message.
+    def __delitem__(self, *args, **kwargs):
+        ""  # no docstring
+        raise TypeError("frozenbitarray is immutable")
+
+    append = bytereverse = clear = extend = encode = fill = __delitem__
+    frombytes = fromfile = insert = invert = pack = pop = __delitem__
+    remove = reverse = setall = sort = __setitem__ = __delitem__
+    __iadd__ = __iand__ = __imul__ = __ior__ = __ixor__ = __delitem__
+    __ilshift__ = __irshift__ = __delitem__
+
+
+def test(verbosity=1):
+    """test(verbosity=1) -> TextTestResult
+
+Run self-test, and return `unittest.runner.TextTestResult` object.
+"""
+    from bitarray import test_bitarray
+    return test_bitarray.run(verbosity=verbosity)